CN111335300A - Prefabricated building structure - Google Patents

Abstract

The invention relates to a prefabricated building structure, comprising a pile body and a pile tip; the pile body is provided with a first cage body and a pre-embedded pipe, the pre-embedded pipe is arranged in the middle of the pile body, the interior of the pre-embedded pipe is hollow, and the first cage body The pre-embedded pipe is encircled; the pile tip is arranged at the end of the pile body, and a reinforcing rib is arranged in the pile tip, and the reinforcing rib extends into the pile body. Compared with the existing structure, the prefabricated building structure reduces the amount of raw materials, reduces the weight, and saves the production cost; improves the bearing capacity and service life; the setting of the first cage can further improve the bearing capacity of the prefabricated building structure, It ensures the reliability of the prefabricated building structure in service. In addition, the pile tip can increase the ability of the prefabricated building structure to penetrate the soil layer during subsidence construction, play a guiding role, and reduce the probability of the prefabricated building structure breaking; The tip is better combined to avoid the separation of the pile body and the pile tip due to stress in the process of using the prefabricated building structure.

Description

prefabricated building structures

technical field

The present invention relates to the field of construction technology, in particular to a prefabricated building structure.

Background technique

In the field of construction technology, in order to facilitate production and processing and reduce construction time, prefabricated building structures are usually fabricated in factories, and then transported to construction sites for use. The existing prefabricated building structures are mostly solid or hollow structures, but the solid structures have problems such as excessive weight, difficulty in transportation, and waste of raw materials. On the other hand, although hollow structures can save raw materials, their seismic mechanical properties and durability cannot be guaranteed. In addition, the combination of the pile body and the pile tip of the prefabricated building structure is not reliable enough, and the integration of the two is insufficient. During the subsidence construction process, the prefabricated building structure is subjected to pressure and shear force, which easily leads to the separation or dislocation of the pile body and the pile tip. Therefore, there is a need for an improved prefabricated building structure, which can not only reduce weight, save raw materials, but also ensure its seismic mechanical performance and durability, and can improve the integrity of the pile body and the pile tip.

SUMMARY OF THE INVENTION

In view of this, it is necessary to provide an improved prefabricated building structure.

The invention provides a prefabricated building structure. The prefabricated building structure includes a pile body and a pile tip; a first cage body and a pre-embedded pipe are arranged in the pile body. A cage body surrounds the pre-embedded pipe; the pile tip is arranged at the end of the pile body, and a reinforcing rib is arranged in the pile tip, and the reinforcing rib extends into the pile body.

The prefabricated building structure provided by the present invention is provided with a pre-embedded pipe, which divides the prefabricated building structure into a hollow part and a solid part; compared with the existing solid pile structure, the prefabricated building structure reduces the consumption of raw materials and reduces the Compared with the existing hollow pile structure, the bearing capacity and service life of the prefabricated building structure are improved, which makes the prefabricated building structure applicable to a wider range; the setting of the first cage can further improve the prefabricated building structure. The bearing capacity of the structure. When the prefabricated building structure is buried underground, the solid part is located in the depth area with the highest frequency of seismic waves below the foundation (generally 2 meters to 15 meters below the foundation), which can ensure the earthquake resistance of the prefabricated building structure, thus ensuring that the prefabricated building structure is in service. reliability. In addition, when the prefabricated building structure is buried underground, since both ends of the prefabricated building structure are solid parts, compared with hollow piles, the prefabricated building structure 100 is conducive to the penetration of geological soil layers during construction, the construction speed is faster, and the damage rate is lower. , which is conducive to saving the project duration and ensuring the quality of the project. In addition, the pile tip can increase the ability of the prefabricated building structure to penetrate the soil layer during subsidence construction, can play a guiding role, and can also reduce the probability of the prefabricated building structure breaking; the reinforcement in the pile tip extends into the pile body, which can make The pile body and the pile tip are well combined to avoid the separation of the pile body and the pile tip due to stress in the process of using the prefabricated building structure.

In an embodiment of the present invention, the end of the pile body close to the pile tip extends outward to form a plug-in block, the end face of the pile tip close to the pile body is provided with a plug-in groove, and the outer circumference of the plug-in block is smaller than or equal to the plug-in block. the size of the slot; or,

The end of the pile body close to the pile tip is provided with an insertion slot, and the end surface of the pile tip close to the pile body extends outward to form an insertion block, and the outer circumference of the insertion block is smaller than or equal to the size of the insertion slot.

In this way, by arranging the insertion slot and the insertion block at the end where the pile body and the pile tip are spliced with each other, the end of the pile body and the end of the pile tip can be accurately matched, so as to ensure that the pile body and the pile tip can be correctly connected, Prevent the axial positioning deviation after the pile body and the pile tip are butted. In addition, the outer peripheral size of the plug-in block is smaller than or equal to the size of the plug-in groove, which is more convenient for quick splicing of the pile body and the pile tip during construction, and avoids docking jams or docking difficulties.

In one embodiment of the present invention, the reinforcing rib includes interconnected reinforcing parts and a connecting part, the reinforcing part is arranged in the pile tip, one end of the connecting part is connected with the reinforcing part, and the other end extends into the pile body.

In this way, the reinforcing part corresponds to the shape of the pile tip, which can prevent the pile tip from being damaged during the pile driving process and improve the bearing capacity of the pile tip; the pile tip is connected to the pile body through the connecting part extending into the pile body.

In one embodiment of the present invention, the pile body is a square pile, and the pile tip is a quadrangular pyramid; the reinforcing portion is a quadrangular pyramid, and the edge of the reinforcing portion corresponds to the edge of the pile tip.

In this way, the outer surface area of the square pile is large and it is square or polygonal. Under the conditions, a larger bearing capacity can be obtained, which saves a lot of basic funds for the project; by comparison, the bearing capacity of the square pile is larger, and the cost per kilonewton (KN) bearing capacity is lower than that of the prestressed concrete pipe pile. , which means that designers can choose square piles under the same design bearing capacity to save money; the theoretical calculation shear force of square piles is 2-3 times that of the same pipe piles, which shows that the seismic performance of square piles is very superior and suitable for In areas with multiple earthquakes and foundations of high-rise buildings and large-area basements; the local hollow square piles inherit and carry forward the characteristics of low construction damage rate of the original concrete square piles. Better impact resistance, and a much smaller pile head breakage rate. In addition, the shape of the reinforcement part and the pile tip correspond to the spatial position, which can better increase the stress capacity and compressive capacity of the pile tip. In the process of penetrating the soil layer during the subsidence construction, the edge of the reinforcement part can withstand and conduct transmission. Force from the tip of the pile tip.

In one embodiment of the present invention, the first cage body is made of prestressed steel bars; the first cage body includes a plurality of first axial tendons, and the plurality of first axial tendons are arranged along the axial direction of the pile body; The pile tip is provided with a first through hole, and the first through hole is located at a position aligned with the first axial rib.

In this way, before the prefabricated building structure is used, the prestressed steel bars are prestressed by the pre-tensioning method or the post-tensioning method to form the prestressed steel bars. Some pre-stressed, then the pre-stressed steel bars are stressed, and finally with the increase of the load, the concrete can be pulled and then cracked, thus delaying the appearance and development of cracks in the prefabricated building structure, and improving the soil mass that the prefabricated building structure can withstand. pressure, groundwater scour, seismic load, and self-gravity load. Rebar is a ribbed steel bar on the surface. Due to the action of the rib, it has a greater bonding ability with concrete, so it can better withstand the effect of external forces. The first cage body is composed of prestressed steel bars, which enables both the solid part and the hollow part to have high vertical force bearing capacity, forming an overall force bearing foundation. The pile tip and the pile body are integrally arranged, and the tensioner can pass through the first through hole to connect with the first axial tendon, and apply prestress to the first axial tendon, so that the tensioner can directly compress the pile tip containing the pile tip. The prefabricated building structure is tensioned, and the integrity of the prefabricated building structure is better after piling, which further improves the bearing capacity of the prefabricated building structure. In addition, the connection between the tensioner and the first axial tendon is simple, which can reduce construction time and construction cost.

In one embodiment of the present invention, the connection portion is connected with the first axial rib by welding or binding.

In this way, the position between the reinforcing rib and the first cage body is relatively fixed, which not only facilitates the formation of the pile body, but also enhances the strength of the pile body and prevents deformation of the prefabricated building structure during service.

In one embodiment of the present invention, the prefabricated building structure further includes a pre-embedded connector, the pre-embedded connector is disposed at the end of the first axial tendon along the axial direction of the pile body, and the pre-embedded connector is provided with threads.

In this way, during construction, the embedded connectors provided with threads are convenient to connect with the axial tendons of other prefabricated building structures, so multiple prefabricated building structures can be spliced and used together to extend the length of the prefabricated building structure. Or pour the cap to bear the superstructure after connecting the steel bars on the top of the prefabricated building structure. Setting pre-embedded connectors on the first cage can increase the bonding rate between the two prefabricated building structures; or increase the reinforcement ratio of the cap, simplify the connection between the prefabricated building structure and the cap, and reduce stress In the process of force transmission, improve the overall vertical force capacity of the prefabricated building structure and ensure the mechanical properties of the connection between the prefabricated building structure and the bearing platform. Moreover, the provision of the pre-embedded connector is more convenient for the stable connection between the tensioner and the axial tendon, so that the tensioner can pre-stretch the pile body 101, so that the first axial tendon 31 can obtain a certain pre-tension. stress.

In an embodiment of the present invention, the pile body is further provided with a second cage body, the second cage body is provided at the end of the pre-embedded pipe in the axial direction, and the second cage body is accommodated in the first cage body.

In this way, the setting of the second cage improves the local reinforcement ratio of the solid part, so that the longitudinal force capacity and shear force capacity are not lowered but increased relative to the solid pile, and the tensile capacity and compression resistance of the prefabricated building structure are improved. capacity, shock resistance and durability.

In one embodiment of the present invention, the second cage body includes a second radial tendon body and a plurality of second axial tendon bodies; the plurality of second axial tendon bodies are arranged along the axial direction of the pile body; The axial ribs form the frame of the second cage, the second radial ribs spirally surround the frame of the second cage, and the second radial ribs are fixedly connected with the plurality of second axial ribs.

In this way, the processing method of the second cage body is simple and easy to produce, and the combination between the second axial rib body and the second radial rib body improves the strength of the second cage body and the bearing capacity during use. ,Not easily deformed.

In one embodiment of the present invention, the pile tip includes a metal tip, and the metal tip is provided at the end of the pile tip opposite to the pile body.

In this way, the tip of the pile tip is made of metal instead of concrete, which can not only improve the efficiency of driving the prefabricated building structure into the soil, but also prevent the concrete at the tip of the pile from falling off, causing the strength of the prefabricated building structure to decrease.

Description of drawings

Fig. 1 is the schematic diagram of the prefabricated building structure in the first embodiment of the present invention;

Fig. 2 is a sectional view of the prefabricated building structure shown in Fig. 1 at section A-A;

Fig. 3 is a sectional view of the prefabricated building structure shown in Fig. 1 at the B-B section;

Fig. 4 is the schematic diagram of the prefabricated building structure in the second embodiment of the present invention;

Fig. 5 is the structural schematic diagram of the pile tip in the prefabricated building structure shown in Fig. 1;

Fig. 6 is the schematic diagram of the pile tip in the third embodiment of the present invention;

Fig. 7 is the schematic diagram of the pile tip in the fourth embodiment of the present invention;

8 is a schematic diagram of a partially prefabricated building structure in the first embodiment of the present invention;

9 is a schematic diagram of a partially prefabricated building structure in a second embodiment of the present invention;

Figure 10 is a schematic diagram of the use of the embedded connector shown in Figure 1;

Figure 11 is a schematic diagram of the use of the butt joint of two prefabricated building structures;

Fig. 12 is an enlarged view of Y shown in Fig. 11;

Fig. 13 is the structural schematic diagram of the positioning ring in the prefabricated building structure shown in Fig. 11;

14 is a schematic diagram of a partially prefabricated building structure in the third embodiment of the present invention;

15 is a schematic structural diagram of a quick docking assembly in one embodiment;

16 is a schematic structural diagram of a quick docking assembly in another embodiment;

Figure 17 is a structural schematic diagram of a prefabricated building structure and a cap;

FIG. 18 is a partial enlarged view of the C portion shown in FIG. 17 .

100, prefabricated building structure; 101, pile body; 1011, plug-in block; 1012, plug-in slot; 102, pile tip; 1020, reinforcing rib; 1021, reinforcing part; 1022, connecting part; 1023, first through hole; 1024, metal tip; 1025, metal bracket; 10, hollow part; 111, first hoop section; 112, second hoop section; 20, solid part; 30, first cage body; 31, first axial tendon ; 32, the first radial ribs; 40, the second cage; 41, the second axial ribs; 42, the second radial ribs; 50, the mounting plate; 60, the corner sleeve; 61, the positioning ring ; 70, pre-embedded connector; 71, shrinkage port; 72, annular bump; 80, pre-embedded pipe; 90, positioning rib; 200, quick docking assembly; 212, the first plug part; 213, the first extension part; 214, the first step surface; 220, the first base; 221, the second fixing part; 222, the fin; 230, the second socket; 231, 232, the second insertion part; 233, the first groove; 240, the second base; 241, the first end face; 242, the second end face; 250, the ring buckle; 300, the pile hoop; 311, upsetting head; 400, bearing platform; 410, force transmission tendons.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that when a component is referred to as being "mounted on" another component, it can be directly on the other component or there may also be an intervening component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a co-existing centered component. When a component is said to be "fixed" to another component, it may be directly fixed to the other component or there may also be an intervening component.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The prefabricated building structure 100 refers to various types of piles that are prefabricated and transported to the construction site for use. The prefabricated building structure 100 can be centrally produced in the factory, or can be prefabricated around the site. The axial length and radial perimeter of the prefabricated building structure 100 can be manufactured as required, and the reinforcement ratio can be designed according to the stress during handling, hoisting, and pressing into the pile, with high flexibility. In addition, the prefabricated building structure 100 belongs to the partial extruded soil pile, which not only effectively saves the cross-sectional area of the cap and the cost, but also facilitates the stress release of the soil body after the failure, reduces the phenomenon of pile body inclination caused by the soil mass extrusion, and is beneficial to the nearby Construction of other piles.

Please refer to Fig. 1 to Fig. 3, Fig. 1 is a schematic diagram of a prefabricated building structure in the first embodiment of the present invention; Fig. 2 is a sectional view of the prefabricated building structure shown in Fig. 1 at section A-A; Fig. 3 is a prefabricated building structure shown in Fig. 1 Sectional view of the structure in section B-B.

The present invention provides a prefabricated building structure 100, which is applied to basic buildings in the field of building technology. In this embodiment, the prefabricated building structure 100 is used for prefabricating vertical stress piles. It can be understood that in other embodiments, the prefabricated building structure 100 can also be applied in other engineering fields, such as prefabricated buildings, etc., and can also be used in horizontal load-bearing piles or composite load-bearing piles.

The existing prefabricated building structures are mostly solid or hollow structures, but the solid structures have problems such as excessive weight, difficulty in transportation, and waste of raw materials. On the other hand, although hollow structures can save raw materials, their seismic mechanical properties and durability cannot be guaranteed. In addition, the combination of the pile body and the pile tip of the prefabricated building structure is not reliable enough, and the integration of the two is insufficient. During the subsidence construction process, the prefabricated building structure is subjected to pressure and shear force, which easily leads to the separation or dislocation of the pile body and the pile tip.

The present invention provides a prefabricated building structure 100. The prefabricated building structure 100 includes a pile body 101 and a pile tip 102; In the middle, the embedded pipe 80 is hollow inside, the first cage body 30 surrounds the embedded pipe 80, the pile tip 102 is arranged at the end of the pile body 101, the pile tip 102 is provided with a reinforcing rib 1020, and the reinforcing rib 1020 extends to the pile inside the body 101 .

As shown in FIG. 1, a prefabricated building structure 100 provided by the present invention is provided with a pre-embedded pipe 80, which divides the prefabricated building structure 100 into a hollow part 10 and a solid part 20; In comparison, the prefabricated building structure 100 reduces the consumption of raw materials, reduces the weight, and saves the production cost; compared with the existing hollow pile structure, the bearing capacity and service life of the prefabricated building structure 100 are improved, and the prefabricated building structure 100 The scope of application is wider; the arrangement of the first cage body 30 can further improve the bearing capacity of the prefabricated building structure 100 . When the prefabricated building structure 100 is buried underground, the solid portion 20 is located in the depth area below the foundation where the seismic wave frequency is the highest (generally 2 meters to 15 meters below the foundation), so that the earthquake resistance of the prefabricated building structure 100 can be guaranteed, thereby ensuring the prefabricated building structure. 100 reliability in service. In addition, when the prefabricated building structure 100 is buried underground, since both ends of the prefabricated building structure 100 are solid parts 20, compared with hollow piles, the prefabricated building structure 100 is conducive to the penetration of geological soil layers during construction, the construction speed is faster, and the damage The rate is lower, which is conducive to saving the project duration and ensuring the quality of the project. In addition, the pile tip 102 can increase the ability of the prefabricated building structure 100 to penetrate the soil layer during subsidence construction, can play a guiding role, and can also reduce the probability of the prefabricated building structure 100 breaking; the reinforcing bars 1020 in the pile tip 102 extend to In the pile body 101, the pile body 101 and the pile tip 102 can be well combined, so as to avoid the separation of the pile body 101 and the pile tip 102 due to the force during the use of the prefabricated building structure 100, and make the connection between the pile body 101 and the pile tip 102. Oneness is better.

Preferably, the hollow portion 10 and the solid portion 20 are made of concrete material, and the shapes of the outer peripheral walls of the hollow portion 10 and the solid portion 20 are substantially the same.

It can be understood that the pile tip 102 may be located at the end of the pile body 101 relatively close to the hollow portion 10 , or may be located at the end relatively close to the solid portion 20 .

It can be understood that the pre-embedded pipe 80 can be arranged in the center of the prefabricated building structure 100, or it can be partially deviated, and different choices can be made according to actual needs; the pre-embedded pipe 80 can be a metal pipe, or a plastic pipe or a ceramic pipe. ; The shape of the cross-section of the embedded pipe 80 can also be a circle or other polygons, for example, a quadrilateral, a pentagon, and the like.

This arrangement can diversify the structure and bearing capacity of the prefabricated building structure 100, and can meet the needs of different working conditions. While meeting the actual strength requirements, seismic mechanical properties and durability, it also reduces the use of raw materials and reduces the cost of The weight of the prefabricated building structure 100 saves the manufacturing cost.

Please refer to FIG. 4 , which is a schematic diagram of the prefabricated building structure 100 in the second embodiment of the present invention. The end of the pile body 101 close to the pile tip 102 extends outward to form a plug-in block 1011 , a plug-in groove 1012 is opened on the bottom surface of the pile-toe 102 close to the pile body 101 , and the outer circumference of the plug-in block 1011 is smaller than or equal to the plug-in groove 1012 size of.

It can be understood that, in other embodiments, the end of the pile body 101 close to the pile tip 102 may also be provided with a plug slot 1012, and the pile tip 102 extends outward near the bottom surface of the pile body 101 to form a plug block 1011, which is inserted into The size of the outer circumference of the block 1011 is smaller than or equal to the size of the socket 1012 .

In this way, by arranging the insertion groove 1012 and the insertion block 1011 at the end where the pile body 101 and the pile tip 102 are spliced with each other, the end of the pile body 101 and the end of the pile tip 102 can be accurately matched to ensure the pile body 101 It can be correctly connected with the pile tip 102 to prevent axial positioning deviation after the pile body 101 is connected with the pile tip 102, and this positioning method is more convenient. In addition, the outer circumference of the plug-in block 1011 is smaller than or equal to the size of the plug-in groove 1012 , which is more convenient for quick splicing of the pile body 101 and the pile tip 102 during construction and avoids docking jams or difficult docking.

In one embodiment, the reinforcing rib 1020 includes a reinforcing portion 1021 and a connecting portion 1022 that are connected to each other. The reinforcing portion 1021 is disposed in the pile tip 102 , one end of the connecting portion 1022 is connected to the reinforcing portion 1021 , and the other end extends to the pile body 101 . Inside.

In this way, the reinforcement portion 1021 corresponds to the shape of the pile tip 102 , which can prevent the pile tip 102 from being damaged during the pile driving process, and improve the bearing capacity of the pile tip 102 .

In one of the embodiments, the reinforcing bars 1020 are made of rebar, steel bars for prestressed concrete, stainless steel bars, hot rolled steel bars, medium strength prestressed steel wires, stress relieved steel wires, steel strands, prestressed threaded steel bars, low Carbon steel hot-rolled disc rods and concrete products are made of at least one of cold-drawn low-carbon steel wires.

In this way, the reinforcing rib 1020 has high strength, is not easily broken, and is inexpensive and easy to obtain.

Please refer to FIG. 5 , which is a schematic structural diagram of the pile tip 102 in the prefabricated building structure 100 shown in FIG. 1 .

In one embodiment, the pile body 101 is a square pile, and the pile tip 102 is a quadrangular pyramid;

In this way, the outer surface area of the square pile is large and it is square or polygonal. Under geological conditions, a larger bearing capacity can be obtained, which saves a lot of basic funds for the project; by comparison, the bearing capacity of the square pile is larger, and the cost per kilonewton (KN) bearing capacity is lower than that of the prestressed concrete pipe This means that designers can choose square piles under the same design bearing capacity to save money; the theoretical calculation shear force of square piles is 2-3 times that of the same pipe piles, which shows that the seismic performance of square piles is very superior. It is suitable for building foundations in areas with multiple earthquakes, high-rise buildings and large-area basements; the local hollow square piles inherit and carry forward the characteristics of low construction damage rate of the original concrete square piles. It has better impact resistance performance and a much smaller pile head damage rate; in addition, the shape and spatial position of the reinforcement portion 1021 and the pile tip 102 correspond to each other, which can better increase the force bearing capacity and compressive capacity of the pile tip 102 , in the process of penetrating the soil layer during the subsidence construction, the edge of the reinforcement part 1021 can bear and conduct the force from the tip of the pile tip 102 .

In one embodiment, the first cage body 30 is made of prestressed steel bars, the first cage body 30 includes a plurality of first axial tendons 31 , and the plurality of first axial tendons 31 are along the axis of the pile body 101 . The pile tip 102 is provided with a first through hole 1023, and the first through hole 1023 is located at a position aligned with the first axial tendon 31.

In this way, before the prefabricated building structure 100 is used, the prestressed steel bar is prestressed by the pre-tensioning method or the post-tensioning method to form the prestressed steel bar. When the prefabricated building structure 100 bears the tensile force generated by the external load, the concrete is first offset. The existing prestressed pressure in the prefabricated building, then the prestressed steel bar is stressed, and finally with the increase of the load, can the concrete be pulled and then cracked, thus delaying the appearance and development of cracks in the prefabricated building structure 100, and improving the prefabricated building structure 100 can withstand Loads such as soil extrusion, groundwater scour, seismic load and self-gravity load. Rebar is a ribbed steel bar on the surface. Due to the action of the rib, it has a greater bonding ability with concrete, so it can better withstand the effect of external forces. The first cage body 30 is composed of prestressed steel bars, so that both the solid part 20 and the hollow part 10 have high vertical force bearing capacity and form an overall force bearing foundation. The pile tip 102 and the pile body 101 are integrally arranged, and the tensioner can be connected to the first axial tendon 31 through the first through hole 1023, and prestress the first axial tendon 31, so that the tensioner can directly By tensioning the prefabricated building structure 100 including the pile tips 102 , the integrity of the prefabricated building structure 100 after pile formation is better, and the bearing capacity of the prefabricated building structure 100 is further improved. In addition, the connection between the tensioner and the first axial tendon body 31 is simple and convenient, which can reduce construction time and construction cost.

In one embodiment, the first cage body 30 further includes a first radial rib 32 , a plurality of first axial ribs 31 form a frame of the first cage 30 , and the first radial rib 32 spirally surrounds The frame of the first cage body 30; the first radial rib body 32 and the first axial rib body 31 are fixed by spot welding.

With this arrangement, the bearing strength of the first cage body 30 is relatively high, and the processing is simple. It is only necessary to wind the first radial ribs 32 to the first radial ribs 32 while the plurality of first axial ribs 31 are being transported in the axial direction. The axial rib 31 can be formed on the frame, which saves man-hours; and the number of turns and the encrypted length of the first radial rib 32 can be increased according to needs in the position where the force is relatively large, such as in the first cage. The two ends of the body 30 increase the number of turns and the densified length of the first radial tendons 32 helically surround, so as to prevent the prefabricated building structure 100 from being damaged due to excessive load bearing when it is buried in the ground.

It can be understood that, in other embodiments, the first radial rib body 32 and the first axial rib body 31 and between the second axial rib body 41 and the second radial rib body 42 can also pass through the card Connection, bundling, etc. are fixed, which are not listed here.

In one of the embodiments, the first axial tendons 31 are made of prestressed concrete steel rods (PC steel rods), stainless steel rods, hot-rolled steel rods, medium-strength prestressed steel wires, stress relief steel wires, steel strands, at least one of the prestressed threaded bars; and/or,

The first radial tendons 32 are made of steel rods for prestressed concrete (PC steel rods), stainless steel rods, hot-rolled steel rods, medium-strength prestressed steel wires, stress-relieved steel wires, steel strands, prestressed threaded steel bars, and low carbon steel bars. Steel hot rolled disc rods, concrete products are made with at least one of cold drawn low carbon steel wire.

In this way, when the first axial tendon 31 is stretched by the tensioning machine, the first axial tendon 31 can bear a relatively large prestress, and can better keep the prestress from being lost, during the service process The pressure that can be endured is higher; in addition, when the tensioning machine stretches the first axial tendon 31, the first axial tendon 31 can transmit the pre-tensioning force to the first radial tendon 32, so that the first axial tendon 31 is stretched. The radial tendons 32 can also obtain a certain degree of pretension, and the first radial tendons 32 can better receive and retain the prestress transmitted by the first axial tendons 31 by using the above-mentioned reinforcing bars, avoiding the need for the first cage body The brittle fracture of the first radial tendons 32 occurs when the 30 is stretched.

It can be understood that the shape of the outer edge of the cross section of the first cage body 30 is a circle or a polygon, and the polygon is a triangle, a square/rectangle, a pentagon, a hexagon, etc., which are not listed one by one here.

With this arrangement, different shapes of the first cages 30 can be designed according to the actual use of the prefabricated building structure 100 and the corresponding stress conditions, so as to achieve different load bearing effects.

In one embodiment of the present invention, the first through hole 1023 has a filling plug, and the filling plug is used to fill and seal the first through hole 1023 .

This arrangement can prevent groundwater or other underground impurities from entering the pile body 101 from the first through hole 1023 during the service process of the prefabricated building structure 100 , preventing the corrosion of the first cage body 30 and prolonging the service life of the prefabricated building structure 100 .

Specifically, the filling and blocking materials are cement mixtures, epoxy resins, structural adhesives, etc., as long as they can be sealed against corrosion.

In an embodiment of the present invention, the number of the first through holes 1023 is 4 to 20.

This arrangement can not only ensure the connection strength between the first cage body 30 and the end plate during pre-stretching, but also prevent the pile tip 102 from losing too much bearing capacity.

In one embodiment, the first cage body 30 further includes a first radial rib 32, a plurality of first axial ribs 31 form a frame of the first cage 30, and the first radial rib 32 spirally surrounds the first cage body 32. A frame of a cage 30; the first radial ribs 32 and the first axial ribs 31 are spot welded and fixed or tied.

With this arrangement, the bearing strength of the first cage body 30 is relatively high, and the processing is simple. It is only necessary to wind the first radial ribs 32 to the first radial ribs 32 while the plurality of first axial ribs 31 are being transported in the axial direction. The axial rib 31 can be formed on the frame, which saves man-hours; and the number of turns and the encrypted length of the first radial rib 32 can be increased according to needs in the position where the force is relatively large, such as in the first cage. The two ends of the body 30 increase the number of turns and the densified length of the first radial tendons 32 helically surround, so as to prevent the prefabricated building structure 100 from being damaged due to excessive load bearing when it is buried in the ground.

It can be understood that, in other embodiments, the first radial rib body 32 and the first axial rib body 31 and between the second axial rib body 41 and the second radial rib body 42 can also pass through the card Connection, bundling, etc. are fixed, which are not listed here.

In one of the embodiments, the first axial tendons 31 are made of prestressed concrete steel rods (PC steel rods), stainless steel rods, hot-rolled steel rods, medium-strength prestressed steel wires, stress relief steel wires, steel strands, at least one of the prestressed threaded bars; and/or,

The first radial tendons 32 are made of steel rods for prestressed concrete (PC steel rods), stainless steel rods, hot-rolled steel rods, medium-strength prestressed steel wires, stress-relieved steel wires, steel strands, prestressed threaded steel bars, and low carbon steel bars. Steel hot rolled disc rods, concrete products are made with at least one of cold drawn low carbon steel wire.

In this way, when the first axial tendon 31 is stretched by the tensioning machine, the first axial tendon 31 can bear a relatively large prestress, and can better keep the prestress from being lost, during the service process The pressure that can be endured is higher; in addition, when the tensioning machine stretches the first axial tendon 31, the first axial tendon 31 can transmit the pre-tensioning force to the first radial tendon 32, so that the first axial tendon 31 is stretched. The radial tendons 32 can also obtain a certain degree of pretension, and the first radial tendons 32 can better receive and retain the prestress transmitted by the first axial tendons 31 by using the above-mentioned reinforcing bars, avoiding the need for the first cage body The brittle fracture of the first radial tendons 32 occurs when the 30 is stretched.

It can be understood that the shape of the outer edge of the cross section of the first cage body 30 is a circle or a polygon, and the polygon is a triangle, a square/rectangle, a pentagon, a hexagon, etc., which are not listed one by one here.

With this arrangement, different shapes of the first cages 30 can be designed according to the actual use of the prefabricated building structure 100 and the corresponding stress conditions, so as to achieve different load bearing effects.

In one of the embodiments, the pile body 101 and the pile tip 102 are integrally formed.

In this way, the combination of the pile body 101 and the concrete of the pile tip 102 improves the integrity of the prefabricated building structure 100 and the force transmission capacity and soil penetration of the pile tip 102, preventing the prefabricated building structure 100 from being buried in the soil layer. The tip 102 is deformed by force, thereby ensuring the reliability of the prefabricated building structure 100 in service.

In one of the embodiments, the connection portion 1022 and the first axial tendon 31 are connected by welding or binding.

In this way, the position between the reinforcing rib 1020 and the first cage body 30 is relatively fixed, which not only facilitates the formation of the pile body 101, but also enhances the strength of the pile body 101 and prevents the prefabricated building structure 100 from being deformed during service.

It can be understood that when the connection portion 1022 and the first axial rib body 31 are fixed by welding, the connection portion 1022 and the first axial rib body 31 are firmly connected, and force can be transmitted between the two, so that the prefabricated building structure The load-bearing performance is better; when the connecting portion 1022 and the first axial rib 31 are connected by binding, there is a local soft connection between the two, which can ensure that the first cage 30 and the reinforcing rib 1020 are connected during processing. The position between them is relatively fixed, and it can prevent internal stress during processing. In actual production, the connection mode between the connecting portion 1022 and the first axial rib body 31 can be selected as required.

Please refer to FIG. 9 , which is a schematic structural diagram of the embedded connector 70 shown in FIG. 1 .

In one of the embodiments, the prefabricated building structure 100 further includes a pre-embedded connector 70 , and the pre-embedded connector 70 is disposed on the end of the first axial tendon 31 along the axial direction of the pile body 101 , on the pre-embedded connector 70 . With thread.

In this way, during construction, the embedded connector 70 provided with threads is convenient to connect with the axial tendons of other prefabricated building structures, so that multiple prefabricated building structures can be spliced and used together to extend the length of the prefabricated building structure 100. The length of the prefabricated building structure 100, or pour the cap 400 after connecting the steel bars on the top of the prefabricated building structure 100 to undertake the superstructure; the embedded connector 70 can also increase the bonding rate between the two prefabricated building structures 100; or improve the reinforcement of the cap 400 rate, simplify the connection method between the prefabricated building structure 100 and the platform 400, reduce the force transmission link in the stress process, improve the overall vertical force capacity of the prefabricated building structure 100, and ensure the mechanical performance of the connection between the prefabricated building structure 100 and the platform. Moreover, the provision of the pre-embedded connector is more convenient for the stable connection between the tensioner and the axial tendon, so that the tensioner can pre-stretch the pile body 101, so that the first axial tendon 31 can obtain a certain pre-tension. stress.

Specifically, the embedded connector 70 is disposed at the end of the first axial tendon 31 relatively close to the pile tip 102 .

With this arrangement, the tensioner can be connected to the first axial tendon 31 through the embedded connector 70 , and the provision of the embedded connector 70 can simplify the connection steps between the tensioner and the first axial tendon 31 , saving The time required to stretch. When the first cage body 30 and the tensioning machine are connected by external steel rods, the external steel rods can be quickly connected with the embedded connector 70 through threads, the connection method is simple, and the reliability of the connection is high.

In one embodiment of the present invention, the embedded connector 70 is further provided with an annular protrusion 72 on the outer peripheral wall relatively close to the end of the prefabricated building structure 100 . Preferably, the outer diameter of the annular bump 72 is gradually reduced from the end of the embedded connector 70 to the middle; the outer peripheral wall of the annular bump 72 is an arc surface.

In this way, the annular bump 72 can homogenize the prestress, so that the second cage 40 and/or the first cage 30 can bear a larger prestress when pre-stretching, thereby preventing the embedded connector 70 from being damaged.

It should be noted that the embedded connectors 70 in the two prefabricated building structures 100 may be of the same model or of different models, which may be selected according to the working conditions.

In one embodiment of the present invention, the embedded connector 70 is formed together with the prefabricated building structure 100 . It can be understood that, in other embodiments, the embedded connector 70 can also be connected to the second cage 40 or the first cage 30 at a later stage. The operation steps are as follows: firstly, the concrete at the end of the prefabricated building structure 100 is chiseled to expose the first axial steel bar or the second axial steel bar, and then the embedded connector 70 is connected to the first axial steel bar or the second axial steel bar. The end of the first axial steel bar or the end of the second axial steel bar is then formed by hot working to form an upsetting head 311 to complete the connection.

The prefabricated building structure 100 can not only be used alone, but also can be used together with multiple prefabricated building structures 100 . For example, two, three, four or even more prefabricated building structures 100 may be connected and used according to working conditions.

In one of the embodiments, the pile body 101 is further provided with a second cage body 40, the second cage body 40 is arranged at the end of the embedded pipe 80 in the axial direction, and the second cage body 40 is accommodated in the first cage inside body 30.

In this way, the setting of the second cage body 40 improves the local reinforcement ratio of the pile body 101 , so that the longitudinal force bearing capacity and the shear force resistance capacity do not drop but rise relative to the solid pile, and the tensile capacity of the prefabricated building structure 100 is improved. , compressive capacity, seismic capacity and durability.

It can be understood that the second cage body 40 can be arranged at one end of the embedded pipe 80 or at both ends of the embedded pipe 80; when both ends of the embedded pipe 80 are provided with In the case of the second cage 40, the lengths of the two second cages 40 may be the same or different, and the specific structures of the two second cages 40 may be the same or different.

It can be understood that the shape of the outer edge of the cross section of the second cage body 40 is a circle or a polygon, and the polygon is a triangle, a square/rectangle, a pentagon, a hexagon, etc., which are not listed one by one here.

With this arrangement, different shapes of the second cages 40 can be designed according to the actual use of the prefabricated building structure 100 and the corresponding stress conditions, so as to achieve different load bearing effects.

In one embodiment of the present invention, the second cage 40 is made of prestressed steel bars or rebars.

In this way, the second cage body 40 can select prestressed steel bars or rebars as required. The prestressed steel bars can further improve the vertical force capacity of the prefabricated building structure 100 , and the rebar can reduce the manufacturing cost of the prefabricated building structure 100 .

In one of the embodiments, the second cage body 40 includes a second radial tendon 42 and a plurality of second axial tendons 41; the plurality of second axial tendons 41 are arranged along the axial direction of the pile body 101, The second axial rib 41 forms the frame of the second cage 40, the second radial rib 42 spirally surrounds the frame of the second cage 40, and the second radial rib 42 and a plurality of second axial ribs 41 are fixedly connected.

In this way, the processing method of the second cage body 40 is simple and easy to produce. At the same time, the combination between the second axial rib body 41 and the second radial rib body 42 improves the strength of the second cage body 40. During the use process The bearing capacity is improved, and it is not easy to deform.

It can be understood that the second radial rib body 42 and the second axial rib body 41 may be fixed by welding, clamping, bundling, etc., which are not listed one by one here.

In one of the embodiments, the second axial reinforcement body 41 is made of rebar, steel rod for prestressed concrete (PC steel rod), stainless steel rod, hot-rolled steel rod, medium-strength prestressed steel wire, stress relief steel wire, steel rod Made of at least one of stranded wire, prestressed rebar; and/or,

The second radial tendons 42 are made of rebar, steel bars for prestressed concrete (PC steel bars), stainless steel bars, hot-rolled steel bars, medium-strength prestressed steel wires, stress-relieved steel wires, steel strands, and prestressed threaded steel bars , low carbon steel hot-rolled disc rods, and concrete products are made of at least one of cold-drawn low-carbon steel wires.

In one embodiment, the embedded connector 70 has internal threads, the second axial rib 41 has external threads, and the second axial ribs 41 and the embedded connector 70 are connected by threads.

In one of the embodiments, the embedded connector 70 has a shrinkage port 71 for connecting with the second axial rib 41 or the first axial rib 31; the second axial rib 41 or the first axial rib One end of the body 31 connected with the embedded connector 70 has a head 311 , and the shrinkage opening 71 is used to limit the position of the head 311 .

In one embodiment of the present invention, the prefabricated building structure 100 further includes a mounting plate 50, the mounting plate 50 is disposed on the wall surface of the embedded pipe 80 near one end of the solid portion 20, and the second cage 40 extends to the mounting plate 50 and is connected with the mounting plate 50. The mounting plate 50 is connected.

In this way, the mounting plate 50 can not only fix the second cage body 40 and prevent the deformation and dislocation of the second cage body 40 during service, but also prevent the concrete on the side wall of the embedded pipe 80 relatively close to the solid part 20 from falling off, preventing the The second cage body 40 is exposed in the air to prevent corrosion of the second cage body 40 and affect the use strength of the second cage body 40 .

Specifically, the mounting plate 50 is a steel plate. The second cage body 40 and the mounting plate 50 are welded.

It can be understood that, in other embodiments, the second cage body 40 can also be directly and fixedly connected to the embedded pipe 80 .

In one embodiment of the present invention, the prefabricated building structure 100 further includes a corner protector 60 , the corner protector 60 is disposed on the end of the solid portion 20 relatively far away from the hollow portion 10 , and/or the corner protector 60 is disposed on the hollow portion 10 . portion 10 is relatively remote from the end of the solid portion 20 .

This arrangement can prevent the concrete on the end of the prefabricated building structure 100 from falling off during the process of burying the prefabricated building structure 100 underground or during the service process, causing the second cage body 40 or the first cage body 30 to be exposed to corrosion. The strength of the prefabricated building structure 100 is reduced.

Specifically, the corner protector 60 is made of carbon structural steel, preferably Q235 steel; the thickness of the corner protector 60 is 0.5mm to 12mm, and the height of the corner protector 60 along the axial direction of the prefabricated building structure 100 is 60mm to 500mm. Preferably, the thickness of the corner protector 60 is 1 mm to 8 mm, and the height of the corner protector 60 along the axial direction of the prefabricated building structure 100 is 80 mm to 200 mm.

In one embodiment of the present invention, the corner protector 60 includes at least one first hoop section 111 recessed toward the axial center of the prefabricated building structure 100 , and at least one second hoop section 112 protruding relative to the first hoop section 111 , the first hoop section 111 and the second hoop section 112 are spaced apart.

This arrangement can prevent the corner protector 60 from shifting relative to the prefabricated building structure 100 during production, and has good fixing performance; and during production, the excess concrete residue can be removed from the mold together with the corner protector 60, which is convenient for the mold. Cleaning and maintenance; the corner protector 60 can wrap the end of the prefabricated building structure 100, which not only makes the surface of the prefabricated building structure 100 smoother and tidy, but also protects the concrete at the end of the prefabricated building structure 100 from falling off during use; The corner sleeve 60 wraps the end of the prefabricated building structure 100, which can make the vibration more sufficient when filling concrete, the damage rate of the prefabricated building structure 100 is lower, and the obtained prefabricated building structure 100 has high strength and good quality. When the prefabricated building structure 100 is buried in the soil, the concave first hoop section 111 can increase the wrapping force of the soil after rebound, which is beneficial to transfer the force carried by the prefabricated building structure 100 to the soil, thereby improving the bearing capacity of the single pile When the prefabricated building structure 100 is used to support the cap 400, the concave first hoop section 111 can increase the occlusal force between the prefabricated building structure 100 and the concrete in the cap 400, which is conducive to the transfer of the force borne by the cap 400 to the prefabricated concrete. In the building structure 100 , the bearing capacity and integrity of the bearing platform 400 are increased.

In one embodiment of the present invention, the first hoop section 111 and the second hoop section 112 extend along the circumferential direction of the prefabricated building structure 100 .

This arrangement can increase the occlusal force between the prefabricated building structure and the soil body or between the prefabricated building structure 100 and the bearing platform 400 , and improve the bearing capacity of the prefabricated building structure 100 .

Please refer to FIGS. 8 to 9 , FIG. 8 is a schematic diagram of a partially prefabricated building structure 100 in the first embodiment of the present invention; FIG. 9 is a schematic diagram of a partially prefabricated building structure 100 in the second embodiment of the present invention.

In one embodiment of the present invention, both the first hoop segment 111 and the second hoop segment 112 are annular.

In this way, the prefabricated building structure 100 is less likely to generate stress concentration, which affects its use strength. And the processing method is simple and the cost is low.

It can be understood that the first hoop section 111 may be an annular groove, or a plurality of annular grooves may be evenly arranged along the axial direction of the prefabricated building structure 100, and may also be a plurality of square grooves/circular grooves/special-shaped grooves along the The radial directions of the prefabricated building structures 100 are evenly arranged, as long as the anchoring effect can be achieved.

In one embodiment of the present invention, the width of the first hoop section 111 is 1 mm to 100 mm, and/or the depth of the first hoop section 111 is 0.1 mm to 50 mm. It can be understood that the width of the first hoop section 111 here refers to the concave width of the first hoop section 111 along the axial direction of the prefabricated building structure 100; the depth of the first hoop section 111 refers to the width of the first hoop section 111 along the prefabricated construction The depth to which the building structure 100 is concave in the radial direction.

In this way, the bearing capacity of the prefabricated building structure 100 will not be affected, and the prefabricated building structure 100 and the soil body can have a high occlusal force, and the processing technology is simple, which is beneficial to the mixing water in the concrete during production. outflow.

In one embodiment of the invention, the outer edge of the cross-section of the second hoop segment 112 is the same as the outer edge of the cross-section of the prefabricated building structure 100 .

In this way, in the prefabricated building structure 100, the maximum outer diameter of the prefabricated building structure 100 and the corner protector 60 is the same, so there will be no obstruction when burying in the soil, and the corresponding prefabricated building structure 100 has no extra edges and corners in the mold, preventing the Concrete residue remains in the mould.

In one embodiment of the present invention, the first hoop section 111 extends along the axial direction of the prefabricated building structure 100; the height of the first hoop section 111 is 10mm to 500mm, and/or the depth of the first hoop section 111 is 0.1mm to 50mm. It can be understood that the height of the first hoop section 111 here refers to the height of the first hoop section 111 concave in the axial direction of the prefabricated building structure 100; the depth of the first hoop section 111 refers to the height of the first hoop section 111 along the prefabricated building structure 100. The depth to which the building structure 100 is concave in the radial direction.

With this arrangement, the processing technology is simple, the bearing capacity of the single pile will not be damaged, and the resistance when the groundwater is discharged during construction can be reduced, which is beneficial to release the soil stress; its size will not affect the bearing capacity of the prefabricated building structure 100, In addition, the prefabricated building structure 100 and the soil body can have a high occlusal force, which is beneficial to the outflow of mixing water in the concrete during production and the discharge of groundwater during construction.

Please refer to FIG. 9 again, as shown in FIG. 9 , the first hoop sections 111 are a plurality of rectangular grooves, and the plurality of first hoop sections 111 are evenly distributed on the outer peripheral wall of the prefabricated building structure 100 with the axis of the prefabricated building structure 100 as the center superior. It can be understood that, the first hoop section 111 can also be in other common shapes such as circular arc, wave, triangle, trapezoid, etc., and can also be non-uniformly distributed, as long as the anchoring effect can be achieved.

Please refer to FIG. 6 and FIG. 7 together. FIG. 6 is a schematic diagram of a pile tip in a third embodiment of the present invention; and FIG. 7 is a schematic diagram of a pile tip in a fourth embodiment of the present invention.

In one of the embodiments, the pile tip 102 includes a metal tip 1024 , and the metal tip 1024 is disposed at the end of the pile tip 102 opposite to the pile body 101 .

In this way, the tip of the pile tip 102 is made of metal material instead of concrete material, which can not only improve the efficiency of driving the prefabricated building structure 100 into the soil, but also prevent the concrete at the tip of the pile 102 from falling off, causing the strength of the prefabricated building structure 100 . decline.

In one embodiment, the pile tip 102 further includes a metal bracket 1025, the outer peripheral wall of the metal bracket 1025 is a truncated truncated structure with notches at the ends, and the end of the truncated structure with a smaller inner diameter is used to install the metal tip 1024; The insides of the tip 1024 and the metal bracket 1025 are filled with concrete.

In this way, the pile tip 102 forms a structure with a metal frame on the outside and concrete on the inside. When the pile tip 102 is driven into the soil, the metal frame has better penetrating power, and the concrete can give the pile tip 102 higher strength, and The concrete is inside the metal frame and won't come off.

In the third embodiment shown in FIG. 6 , the metal tip 1024 in the pile tip 102 is a hollow cone, and the maximum outer diameter of the metal tip 1024 is less than or equal to the minimum inner diameter of the metal bracket 1025, so as to realize the metal tip Snap-fit installation between 1024 and metal bracket 1025. In addition, the metal bracket 1025 is also provided with through holes, and the concrete inside is also provided with through holes to form the first through holes 1023 on the pile tip 102 .

The fourth embodiment shown in FIG. 7 is substantially the same as the third embodiment shown in FIG. 6 , the difference is that the metal tip 1024 in the pile tip 102 is a solid structure; preferably, the solid structure is relatively close to the pile body The end of 101 is provided with a concave portion to increase the bonding force between the metal tip 1024 and the concrete.

Preferably, the metal tip 1024 and the metal bracket 1025 can also be further fixedly connected by means of gluing, screwing, welding, or the like.

It can be understood that in other embodiments, the metal tip 1024 can also be in other shapes, such as a cross shape, a stepped shape, a corrugated shape, etc., as long as the function of guiding the pile body can be achieved during construction.

Please refer to FIG. 11 to FIG. 13 together. FIG. 11 is a schematic diagram of the use of two prefabricated building structures 100 butted together; FIG. 12 is an enlarged view of the position Y shown in FIG. 11 ; Schematic diagram of the structure of the ring 61 .

In one embodiment, quick connectors are provided on the first cages 30 of the two prefabricated building structures 100 , and the two quick connectors can be connected by a quick butt assembly 200 to extend the length of the prefabricated building structures 100 . length.

In one embodiment, the quick docking assembly 200 is made of ferrous metal. Preferably, the quick butt assembly 200 is carbon steel or alloy steel. Specifically, the quick docking component 200 is carbon steel, chrome steel, chrome vanadium steel, chrome nickel steel, chrome molybdenum steel, chrome nickel molybdenum steel, chrome manganese silicon steel, ultra-high strength steel or stainless steel. It can be understood that, in other embodiments, the quick docking assembly 200 can also be made of other materials.

In an embodiment of the present invention, the corner protector 60 further includes a positioning ring 61 . The positioning ring 61 is located at the end of the corner protector 60 and is fixedly connected to the first cage body 30 .

In this way, the position between the corner guard 60 and the first cage body 30 is relatively fixed, that is, the relative position between the corner guard 60 and the pile body 101 is fixed, which not only facilitates the forming of the pile body 101, but also enhances the strength of the pile body 101. The corner protector 60 is prevented from being deformed when the prefabricated building structure 100 is in service.

Specifically, in this embodiment, the positioning ring 61 is sleeved on the embedded connector 70 at the end of the first axial rib body 31, and the positioning ring 61 and the embedded connector 70 may only be sleeved and fixed. It can also be welded and fixed after being set. It can be understood that, in other embodiments, the positioning ring 61 can also be directly sleeved on the first axial rib 31 without using the embedded connector 70 . As long as the position between the corner protector 60 and the first cage body 30 can be relatively fixed by the positioning ring 61 .

Further, there may be one or more positioning rings 61 , and each positioning ring 61 is sleeved with a pre-embedded connector 70 or a first axial rib 31 to achieve a better fixation purpose.

In one of the embodiments, the pre-tensioning process of the first cage body 30 in the prefabricated building structure 100 is as follows: welding one end of the positioning ring 61 that is relatively far away from the annular shape on the corner protector 60, and the other end is sleeved and fixed On the embedded connector 70 , the embedded connector 70 is then connected to the end plate. After the connection, the positioning ring 61 cannot be disengaged from the embedded connector 70 , thereby realizing the gap between the corner protector 60 and the first cage 30 . The position is relatively fixed; then the end plate can be moved to achieve tensioning.

It can be understood that, the positioning ring 61 may also be a circular ring shape or other shapes, as long as the first axial rib body or the second axial rib body can be sleeved.

In this embodiment, the positioning ring 61 is welded to the end of the corner protector 60 . In other embodiments, the positioning ring 61 can also be integrally formed with the corner protector 60 .

Please refer to FIG. 14, which is a schematic diagram of a partially prefabricated building structure in the third embodiment of the present invention.

In an embodiment of the present invention, the prefabricated building structure 100 further includes a positioning rib 90 , and the positioning rib 90 is fixedly connected to the first cage body 30 and the corner protector 60 .

In this way, the position between the corner protector 60 and the positioning rib 90 is relatively fixed, which not only facilitates the formation of the pile body 101, but also enhances the strength of the pile body 101 and prevents the corner protector 60 from being deformed when the prefabricated building structure 100 is in service.

Specifically, one end of the positioning rib 90 is connected to the first cage body 30, and the other end is connected to the corner protector 60; the connection method can be welding, wire binding, or other connection methods, as long as it can be fixed can work.

It can be understood that, in other embodiments, the positioning ring 61 and the positioning ribs 90 can be used at the same time, which can better determine the relative position between the corner protector 60 and the first cage body 30 .

In one embodiment of the present invention, the first hoop section 111 and the second hoop section 112 are connected at right angles or arcs.

With this arrangement, the connection mode of the first hoop section 111 and the second hoop section 112 can be selected according to actual working conditions or processing conditions, and the processing cost of right-angle connection or arc connection is low and easy to implement.

It can be understood that, if other factors such as processing cost are not considered, the connection between the first hoop section 111 and the second hoop section 112 may also be in other ways.

Please also refer to FIG. 15 . FIG. 15 is a schematic structural diagram of the quick docking assembly 200 in one embodiment.

The quick docking assembly 200 in the first embodiment includes a first socket 210 and a first base 220 . The first socket 210 includes a first fixing part 211 , a first plugging part 212 and a first fixing part 211 and a first base 220 . The first extension part 213 between the first plug-in parts 212, the first base 220 includes a second fixing part 221 and a plurality of fins 222 connected to the second fixing part 221, the first socket 210 is fixed by the first The first base 220 is connected to the quick connector of the other prefabricated building structure 100 through the second fixing part 221; the first plug-in part 212 protrudes A first step surface 214 is formed on the first extension portion 213 and formed between the first insertion portion 212 and the first extension portion 213 ; a plurality of fins 222 are arranged around each other; the first socket 210 can pass through the fins The elastic expansion of the fins 222 passes through the openings formed by the plurality of fins 222 . The fins 222 can elastically contract and surround the first extension portion 213 , and the end surfaces of the fins 222 are connected to the first stepped surface 214 of the first socket 210 . relative settings.

In this embodiment, the use process of the quick docking assembly 200 is as follows: the first socket 210 is connected to the embedded connector 70 in one of the prefabricated building structures 100 through the first fixing portion 211 , and the first base 220 is The fixing portion 221 is connected with the embedded connector 70 in another prefabricated building structure 100 ; the first plug portion 212 and the first extension portion 213 of the first socket 210 are extended into the inner wall of the first base 220 and Moving along the insertion direction α, the first insertion portion 212 of the first insertion table 210 exerts pressure on the fins 222, so that the fins 222 elastically expand until the first insertion portion 212 passes through the fins 222; When the portion 212 passes through the fins 222, the fins 222 elastically contract and surround the first extension portion 213. When a force in the opposite direction of the insertion direction α is applied to the first socket 210, the ends of the fins 222 will abut on the first slot 210. A first step surface 214 between the insertion portion 212 and the first extension portion 213 is positioned on the first insertion table 210 .

The installation between the quick docking assembly 200 and the pre-embedded connector 70 provided in this embodiment is easy. After the first insertion portion 212 of the first insertion table 210 is inserted into the first base 220, the fins 222 will elastically shrink and surround the first insertion portion 212. In an extension portion of the base 220 , the ends of the fins 222 are in contact with the stepped surface of the first socket 210 , and the ends of the fins 222 are in contact with the first stepped surface 214 of the first socket 210 . The surface is similar to a ring shape, and the contact area is large, which can ensure the joint strength between the two prefabricated building structures 100, especially the vertical force performance is greatly improved; the fins 222 can not only surround the first extension of the socket 213, the first extension part 213 can also be limited to prevent the first extension part 213 from shaking in the radial direction. In addition, the quick docking assembly 200 provided in this embodiment has simple processing technology, low cost, and wide application scenarios.

Please also refer to FIG. 16 . FIG. 16 is a schematic structural diagram of the quick docking assembly 200 in another embodiment.

The quick docking assembly 200 in the second embodiment includes a second socket 230, a second base 240 and a loop 250. The second socket 230 includes a third fixing part 231 and a second plugging part 232 arranged opposite to each other, The second plug portion 232 is provided with a first groove 233; the second base 240 includes a first end surface 241 and a second end surface 242 that are oppositely arranged; the buckle 250 has an opening (not shown) and can be elastically contracted, The ring buckle 250 is sleeved with the second socket 230 and accommodated in the first groove 233 ; the buckle 250 can be inserted into the second base 240 along the insertion direction together with the second insertion portion 232 of the second socket 230 , and the buckle 250 can abut against the second end surface 242 of the second base 240 through elastic expansion, and restrict the reverse movement of the second socket 230 along the insertion direction.

After the quick docking assembly 200 provided in this embodiment inserts the second plug portion 232 of the second socket 230 into the second base 240 , the loop 250 can pop out of the first groove 233 through the elastic expansion portion and abut against the second base 240 . On the second end face 242 of the base 240, the abutting face between the ring buckle 250 and the second end face 242 is approximately annular, and the abutting area is large, which can ensure the joint strength between the two embedded connectors 70, especially for The vertical force performance has been greatly improved. In addition, the quick docking assembly 200 provided in this embodiment has simple processing technology, low cost, and wide application scenarios.

It can be understood that, the insertion direction α may be but not limited to the above-mentioned direction, and even if there is a partial angle offset, it should also be included in the protection scope of the present invention.

In one embodiment, after the two prefabricated building structures 100 are docked, a pile hoop 300 is arranged on the peripheral wall at the junction of the two, and the pile hoop 300 is used to fasten the butt joint of the two prefabricated building structures 100. The dislocation of the two prefabricated building structures 100 is prevented during use or service.

It can be understood that the two prefabricated building structures 100 can be the same prefabricated piles or different prefabricated piles; they can be solid piles, hollow piles, or partial hollow piles; Can be pipe piles.

In one of the embodiments, an adhesive layer (not shown) is further provided between the two prefabricated building structures 100 . The adhesive layer fills the gap between the two prefabricated building structures 100 and the gap between the prefabricated building structure 100 and the quick docking assembly 200 to prevent corrosion of the first cage body 30, the second cage body 40 and the rapid The docking assembly 200 increases its corrosion resistance; after the adhesive layer is cured, it can also shake or rotate between the two prefabricated building structures 100, and can also prevent shaking or rotation between the quick docking assembly and the prefabricated building structure 100, The stability of the prefabricated building structure 100 is increased; and the cured adhesive layer can withstand the action of force, so that the combination between the two prefabricated building structures 100 is tighter and firmer, and the mechanical performance is better; in addition, the adhesive layer Even if there is a slight uneven force between the two prefabricated building structures 100 or between the prefabricated building structure 100 and the quick docking assembly 200, the cured adhesive layer can also be balanced. The action of the force improves the vertical force bearing capacity of the prefabricated building structure 100 and prolongs the service life of the prefabricated building structure 100 .

In one embodiment of the present invention, the adhesive layer is a paste adhesive.

In this way, the paste-like glue is easily attached to the end face of the prefabricated building structure 100 and is not easy to flow, and the paste-like glue can also be squeezed between the prefabricated building structure 100 and the quick docking assembly 200 during docking, so that the quick docking assembly The connection between 200 and the prefabricated building structure 100 is tight, and the entire prefabricated building structure 100 is more stable in use.

In one embodiment of the present invention, the adhesive is a two-liquid mixed hardened adhesive (AB glue).

In this way, AB glue has the advantages of good storage and transportation performance, more flexible use, high bonding strength, and good vertical stress performance after curing.

In one embodiment of the present invention, the adhesive is epoxy resin.

In this way, the epoxy resin has strong adhesion, and its chemical structure contains aliphatic hydroxyl groups, ether groups and extremely active epoxy groups. Strong adhesive force, they can firmly bond concrete, stone and various metal materials; epoxy resin AB glue can be made into glue of different viscosity, and the curing degree of AB glue can be adjusted by normal temperature curing, heating curing, etc. , its curing time can be controlled within a few minutes to a few hours; and, the epoxy resin AB glue has good performance, the epoxy resin glue has good performance after curing, high mechanical strength, yellowing resistance, medium resistance, long aging resistance, electrical Insulation, waterproof and moisture-proof performance are very good, and the volume shrinkage rate is small; epoxy resin AB glue itself is non-toxic, and there is no three waste discharge in production, which will not cause harm to the environment during use, which meets environmental protection requirements; in addition, epoxy resin AB glue Glue sources are widely available, cheap and low cost.

Please also refer to FIG. 17 . FIG. 17 is a schematic structural diagram of the prefabricated building structure 100 and the platform 400 .

In one of the embodiments, the prefabricated building structure 100 cooperates with the deck 400 .

In this embodiment, the solid portion 20 of the prefabricated building structure 100 is connected to the platform 400 . Both the second cage body 40 and the first cage body 30 are provided with pre-embedded connectors 70 at the ends relatively far away from the hollow portion 10 . The pre-embedded connectors 70 are fixedly connected with the force-transmitting tendons 410 . The force-bearing frame in the bearing platform 400 is formed, and then the concrete is poured into the mold, and the bearing platform 400 is formed after the concrete is dried and formed. Because in this embodiment, the second cage body 40 and the first cage body 30 are provided with embedded connectors 70 , which can greatly improve the reinforcement ratio in the platform 400 , and not only can improve the bearing capacity of the platform 400 , The force transmission link is reduced, which is safer and more reliable; it can also better transmit the force borne by the bearing platform 400 to the foundation below.

It can be understood that, in other embodiments, if the bearing platform 400 does not need a very high bearing capacity, only the second cage body 40 or the first cage body 30 may be provided with a preset at the end relatively far away from the hollow portion 10 . The embedded connector 70 is fixedly connected with the force transmission rib body 410 .

Please also refer to FIG. 18 . FIG. 18 is a partial enlarged view of the portion C shown in FIG. 17 .

In one embodiment, the embedded connector 70 is provided with a through thread, one end of the embedded connector 70 is threadedly connected with the first axial rib body 31 or the second axial rib body 41 , and the other end is connected with the force transmission rib body 410 . Threaded connection.

Preferably, the force transmission rib body 410 is screw steel.

It can be understood that, in other embodiments, the embedded connector 70 can also be other types of steel bars, and the embedded connector 70 is connected to the first axial tendon 31 , the second axial tendon 41 or the force transmission tendon The 410 can also be fixedly connected by welding, clipping, etc. Preferably, the embedded connector 70 is provided with an internal thread, and the force transmission tendon body 410 is provided with an external thread, and the two are connected by threaded fitting, which is convenient for connection and saves time and cost during construction.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (10)

1. A prefabricated building structure (100), characterized in that the prefabricated building structure (100) comprises a pile body (101) and a pile tip (102); a first cage body is provided in the pile body (101) (30) and a pre-embedded pipe (80), the pre-embedded pipe (80) is arranged in the middle of the pile body (101), and the interior of the pre-embedded pipe (80) is hollow, and the first cage ( 30) Enclosing the pre-embedded pipe (80); the pile tip (102) is arranged at the end of the pile body (101), and the pile tip (102) is provided with a reinforcing rib (1020), so The reinforcing rib (1020) extends into the pile body (101). 2. The prefabricated building structure (100) according to claim 1, wherein the end of the pile body (101) close to the pile tip (102) extends outward and forms a plug-in block (1011), An insertion slot (1012) is formed on the end face of the pile tip (102) close to the pile body (101), and the outer circumference of the insertion block (1011) is smaller than or equal to the size of the insertion slot (1012). ;or, The end of the pile body (101) close to the pile tip (102) is provided with an insertion slot (1012), and the end surface of the pile tip (102) close to the pile body (101) extends outward and forms an insertion slot. A connection block (1011), the outer circumference of the insertion block (1011) is smaller than or equal to the size of the insertion slot (1012). 3. The prefabricated building structure (100) according to claim 1, wherein the reinforcing rib (1020) comprises a reinforcing part (1021) connected to each other and a connecting part (1022), the reinforcing part (1021) It is arranged in the pile tip (102), one end of the connecting part (1022) is connected with the reinforcing part (1021), and the other end extends into the pile body (101). 4. The prefabricated building structure (100) according to claim 3, characterized in that, the pile body (101) is a square pile, the pile tip (102) is a quadrangular pyramid; the reinforcement portion (1021) In the shape of a quadrangular pyramid, the edge of the reinforcing part (1021) corresponds to the edge of the pile tip (102). 5. The prefabricated building structure (100) according to claim 3, wherein the first cage (30) is made of prestressed steel bars; the first cage (30) comprises a plurality of first cages (30) Axial tendons (31), a plurality of the first axial tendons (31) are arranged along the axial direction of the pile body (101); the pile tip (102) is provided with a first through hole (1023) ), the first through hole (1023) is located at a position aligned with the first axial rib (31). 6. The prefabricated building structure (100) according to claim 5, characterized in that, the connecting portion (1022) and the first axial tendon (31) are connected by welding or binding. 7. The prefabricated building structure (100) according to claim 5, characterized in that, the prefabricated building structure (100) further comprises a pre-embedded connector (70), and the pre-embedded connector (70) is provided on the The end portion of the first axial tendon (31) along the axial direction of the pile body (101) is provided with threads on the embedded connector (70). 8 . The prefabricated building structure ( 100 ) according to claim 1 , wherein a second cage ( 40 ) is further provided in the pile body ( 101 ), and the second cage ( 40 ) is provided in the The end of the embedded pipe (80) in the axial direction, and the second cage (40) is accommodated in the first cage (30). 9. The prefabricated building structure (100) according to claim 8, wherein the second cage (40) comprises a second radial tendon (42) and a plurality of second axial tendons (41) ); a plurality of the second axial tendons (41) are arranged along the axial direction of the pile body (101); a plurality of the second axial tendons (41) form the second cage (40) a frame, the second radial tendon (42) spirally surrounds the frame of the second cage (40), the second radial tendon (42) and a plurality of the second axial tendons ( 41) Fixed connection between. 10. The prefabricated building structure (100) according to claim 1, wherein the pile tip (102) comprises a metal tip (1024), and the metal tip (1024) is provided on the pile tip (1024). 102) The end relatively facing away from the pile body (101).

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