CN114438875A - Novel partially-prefabricated concrete pier column structure and construction method - Google Patents

Abstract

The invention relates to the technical field of concrete pier column equipment, in particular to a novel partially prefabricated concrete pier column structure and a construction method, the novel partially prefabricated concrete pier column structure comprises a foundation, a cast-in-place base, a partially prefabricated section and a prefabricated cover beam, the upper end of the foundation is fixedly connected with the cast-in-place base, the upper end of the cast-in-place base is fixedly connected with the partially prefabricated section, the upper end of the partially prefabricated section is fixedly connected with the prefabricated cover beam, the partially prefabricated section comprises a first prefabricated block, a first matching seat frame, a limiting fastening structure, a second prefabricated block and a second matching seat frame, the second prefabricated block is arranged at the bottom of the inner end of the partially prefabricated section, the side end of the second prefabricated block is fixedly connected with the second matching seat frame, the upper end of the second matching seat frame is fixedly connected with the first matching seat frame, and the center of the first matching seat frame is fixedly connected with the first prefabricated block. The invention realizes the purpose of mounting and connecting the concrete pier stud by the arrangement of the structure.

Description

A new type of partially precast concrete pier structure and construction method

technical field

The invention relates to the technical field of concrete pier column equipment, in particular to a novel partially prefabricated concrete pier column structure and a construction method.

Background technique

The control of the production process of precast concrete piers is mainly divided into two parts. First, the formwork should be reasonably selected, and secondly, the uniformity of the release agent should be ensured. After that, the concrete pouring and vibrating work should be improved. The formwork construction technology is the bridge construction technology. A common type of force in China, mainly consists of preliminary design, mid-term vertical formwork and support workflow, and later introduction of steel bar binding work. The gain or loss of formwork construction technology will directly affect the structural stability of bridge piers and columns. It has a certain influence on the appearance of the pier and column, so the construction application of the formwork technology is the key link of the bridge pier column construction technology. Before, it was necessary to conduct on-the-spot research on the environmental factors of bridge engineering. From topography and geology to hydrogeology, all relevant personnel were inspected. Only by doing a good job of exploration work can the construction of formwork technology be foolproof, so as to ensure the appearance of bridge piers and columns. Quality issues.

According to Chinese Patent No. CN201310116355.2, the present invention relates to a method for reinforcing reinforced concrete piers with external prestressing and a steel cover in the fields of large-span bridges, (super) high-rise buildings and subway underground structures. The method mainly includes: according to concrete Shear, flexural strength and ductility requirements of the pier column, calculate whether the concrete pier column needs to be reinforced; determine the position and location of the prestressed stranded wire hoop composed of the prestressed stranded wire and the connecting anchor along the height direction of the concrete pier column. Spacing; wrap the prestressed strand hoop around the outside of the concrete pier column, and apply tensile stress to the prestressed strand according to the reinforcement requirements along the concrete pier column; finally, according to the vertical bearing capacity and deformation performance requirements of the concrete pier column, As well as the protection requirements for the external prestressed strands and anchors, determine the thickness of the outer steel plate and the diameter of the steel plate after welding into the steel cover, and inject cement mortar between the original concrete pier and the steel cover to form the external prestressed steel. The cover reinforces the concrete pier column, but the patent has the function of inconvenient for guiding connection and needs to be improved.

According to Chinese Patent No. CN201610424250.7, the present invention relates to bridge construction, and provides a synchronous construction method of steel box girder and concrete pier column, setting temporary support according to the steel box girder installation plan, carrying out the hoisting construction of the steel box girder, and synchronously constructing the steel box Each concrete pier at the lower part of the beam, and after the steel box girder is assembled and the concrete pier is constructed to the required strength, drop the steel box beam onto each concrete pier. In the construction method of the present invention, the steel box girder and the concrete pier are constructed synchronously, and the upper part of the structure and the lower part of the bridge project are constructed at the same time, so that the construction period of the bridge project can be greatly shortened, and the operation is simple and easy to operate, which can meet the needs of urban The construction of viaducts in the road renovation reduces the impact of the construction process on urban traffic, but the patent is inconvenient for the function of mutual fast limit and needs to be improved.

According to Chinese Patent No. CN201920388823.4, the utility model relates to the technical field of bridge construction, in particular to a connection structure of a prefabricated concrete pier column and a bearing platform, comprising: a bearing platform having a cavity for bearing the prefabricated concrete pier column, and A plurality of first steel bars are pre-embedded on the side wall of the cavity, and one end of the first steel bars extends to the inside of the cavity; one end of the prefabricated concrete pier is set in the cavity, and is located on the side of the prefabricated concrete pier in the cavity. A plurality of second steel bars are pre-embedded on the wall, and one end of the second steel bars extends to the inside of the cavity; the connecting component is arranged in the cavity space between the bearing platform and the precast concrete pier column, and includes a plurality of first steel bars arranged in a crossed manner. A steel bar, a plurality of second steel bars, and a concrete layer filled in the gap between the first steel bar and the second steel bar. The utility model provides a connection structure of a prefabricated concrete pier column and a cap which is simple in construction and requires low construction accuracy, but the patent is not conducive to the later pouring and coordination work and needs to be improved.

The existing precast concrete pier-column structure has the function of inconvenient for guiding installation and connection, and also has the function of inconvenient for mutual quick limit, which is not conducive to the later pouring coordination work, affects the normal use, and needs to be improved.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a novel partially precast concrete pier structure and construction method to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: a novel partially prefabricated concrete pier structure, comprising a foundation, a cast-in-place base, a part of prefabricated segments and a prefabricated cover beam, and the upper end of the foundation is fixedly connected with a cast-in-place base , the upper end of the cast-in-place base is fixedly connected with a part of the prefabricated segment, and the upper end of the part of the prefabricated segment is fixedly connected with a prefabricated cover beam;

The partial prefabricated segment includes a first prefabricated block, a first matching seat frame, a limit fastening structure, a second prefabricated block and a second matching seat frame;

The second prefabricated block is arranged at the bottom position of the inner end of some prefabricated segments, the side end position of the second prefabricated block is fixedly connected with a second matching seat frame, and the upper end position of the second matching seat frame is the same as that of the first matching seat frame. The matching seat frame is fixedly connected, the center position of the first matching seat frame is fixedly connected with the first prefabricated block, and the center positions of the first prefabricated block and the second prefabricated block are fixedly connected with a limited-position fastening structure;

The limit fastening structure includes a central link frame, a support guide frame, a support column frame and a limit connecting guide block;

The central link is erected at the bottom position of the inner end of the limiting fastening structure, the upper end of the central link frame is fixedly connected with a support guide frame, the center of the support guide frame is fixedly connected with a support column frame, and the support The central position of the column frame is fixedly connected to the limit and guide block;

The limit fastening structure further includes a top plate frame, a matching truss, an installation limit frame, a tightening push shaft, a pin shaft, a matching shaft column, a movable frame and a plug-in vertical rod;

The lower end of the top plate frame is fixedly connected with a matching shaft column, the lower end of the matching shaft column is fixedly connected with a tightening push shaft, and the lower end of the tightening push shaft is fixedly connected with an installation limit frame, the tightening The fixed push shaft is connected with a matching truss, the side end position of the matching truss is fixedly connected with the movable frame, the lower end of the movable frame is connected with the pin shaft, and the top position of the movable frame is hinged with a plug-in stand. rod;

The prefabricated cover beam includes a cover beam plate and an installation structure;

The cover beam plate is arranged on the top of the inner end of the prefabricated cover beam, and the lower end of the cover beam plate is fixedly connected with an installation structure;

The installation structure includes a top support frame, a stable platform, a pillar frame, a built-in steel frame, a matching groove frame, a limiting round rod, a steel bar frame and a flat top frame;

The side end position of the flat-top frame is fixedly connected with a reinforcing bar frame, the rear end position of the flat-top frame is fixedly connected with the restricting round rod, the center of the restricting round rod is fixedly connected with the top support frame, and the top The side end position of the support frame is fixedly connected to the stable platform, the side end position of the stable platform is fixedly connected to the pillar frame, the side end position of the support frame is fixedly connected to the built-in steel frame, and the built-in steel frame is fixedly connected. The side end position of the frame is fixedly connected with the matching groove frame.

Preferably, the installation structure is fixedly connected to the cover beam plate through a top support frame, and the top support frame and the cover beam plate are adapted to be arranged.

Preferably, a groove body is provided at the center of the matching slot frame, and the matching slot frame is inserted and limited to the top position of some prefabricated segments.

Preferably, the installation limiting frame and the limiting connecting guide block are adapted to be snap-connected, and the top plate frame is connected to the first prefabricated block through a pin shaft.

Preferably, a spring column is provided at the side end position of the limit connecting guide block, and the limit connecting guide block is connected with the installation limit frame through the spring column.

Preferably, the support guide frame is fixedly connected to the second prefabricated block through a central link frame.

Preferably, the movable frame is limitedly connected to the first prefabricated block through a pin shaft.

Preferably, the first matching seat frame and the second matching seat frame are matched and arranged, and there are four first matching seat frames and second matching seat frames, which are symmetrically arranged around the first prefabricated block and the second prefabricated block.

Preferably, a first protective rib and a second protective rib are arranged at the side end positions of the partial prefabricated segments, and the first protective rib and the second protective rib are symmetrically distributed in the front and rear.

A new construction method for a partially precast concrete pier-column structure, comprising:

S1. Pre-install the foundation, realize the pouring connection work, and realize the connection and fixation of the foundation and the foundation;

S2. Prefabricate some prefabricated segments, realize the connection and installation with the foundation through transportation and hoisting, and realize the fixed connection through the limit fastening structure. The second prefabricated block at the bottom is fixed with the foundation through the limit fastening structure. And the first prefabricated block and the second prefabricated block are also fixedly arranged through the limit fastening structure;

S3. Install and fix the prefabricated cover beams and some prefabricated segments to realize the overall combined setting. The prefabricated cover beams can be installed and connected with some prefabricated segments through the installation structure to realize the overall fixation, and then the concrete is poured to achieve The overall cooperation is convenient for combined pouring work.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1. Compared with the fully prefabricated pier structure, the partial prefabrication of the section reduces the weight of the prefabricated components and facilitates transportation and hoisting. At the same time, the longitudinal bars are connected up and down, and the surrounding cavities of the segmental prefabricated piers are poured with concrete, and the surrounding cavities of the segmental prefabricated piers are poured , the shear resistance between segments is enhanced, the integrity and earthquake resistance of the structure are enhanced, and the energy dissipation capacity of the structure is greatly improved. The seismic action energy and the segmental prefabricated piers contribute little to the energy dissipation capacity, and the energy dissipation capacity of the overall structure is basically equivalent to that of the cast-in-place concrete structure. The prefabricated cavity shell is used as the formwork of the cast-in-place concrete, which reduces the workload of on-site formwork support, speeds up the construction progress, and greatly shortens the construction period. It is not bonded, strengthens the integrity of the connection of each segment, enhances the shear resistance of each segment, and at the same time utilizes the elastic restoring force of the prestressed tendons, so that the pier-column structure has a strong self-resetting ability under the action of earthquakes , reduce the residual deformation of the structure and enhance the repairability of the structure.

2. By installing some prefabricated segments, some prefabricated segments are connected by the first prefabricated block, the first matching seat frame, the limit fastening structure, the second prefabricated block and the second matching seat frame to realize the overall construction and installation work , and the first prefabricated block and the second prefabricated block are produced by prefabrication, and the combined installation of the first prefabricated block and the second prefabricated block can be facilitated through the limit fastening structure to achieve mutual cooperation. The mating seat frame and the second mating seat frame can be fastened to facilitate the connection between each section. The grouting in the center of the first prefabricated block and the second prefabricated block realizes the overall fastening and facilitates the overall curing treatment. It is helpful for quick installation and connection work, and realizes the overall assembly production work.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the main structure schematic diagram of the present invention;

Fig. 2 is the main structure schematic diagram of the present invention;

Fig. 3 is the perspective view of the main body of the present invention;

4 is a schematic structural diagram of a part of a prefabricated segment of the present invention;

Fig. 5 is the structural schematic diagram of the limit fastening structure of the present invention;

FIG. 6 is a side view of the limiting fastening structure of the present invention;

Fig. 7 is the structural schematic diagram of the prefabricated cover beam of the present invention;

Fig. 8 is the side view of the prefabricated cover beam of the present invention;

Fig. 9 is the structural schematic diagram of the installation structure of the present invention;

10 is a side view of the second embodiment of the main body plug of the present invention.

In the figure: 1- Foundation, 2- Cast-in-place base, 3- Part of prefabricated segment, 4- Prefabricated cover beam, 5- First prefabricated block, 6- First matching seat frame, 7- Limiting fastening structure, 8- -Second prefabricated block, 9-Second matching seat frame, 10-Central link frame, 11-Supporting guide frame, 12-Supporting column frame, 13-Limiting connecting guide block, 14-Top plate frame, 15-Matching Truss, 16-installation limit frame, 17-fastening push shaft, 18-pin shaft, 19-cooperating shaft column, 20-movable frame, 21-plug-in pole, 22-cover beam plate, 23-installation structure, 24 -Top support frame, 25-Stable platform, 26-Pillar frame, 27-Built-in steel frame, 28-Matching groove frame, 29-Limited round rod, 30-Rebar frame, 31-Flat top frame, 32-First protection Ribs, 33 - the second protective ribs.

Detailed ways

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

It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances for the embodiments of the application described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

The present invention will be further described below with reference to the accompanying drawings.

Example 1

Please refer to Figure 1, Figure 2, Figure 3, an embodiment provided by the present invention: a novel partially precast concrete pier structure, comprising a foundation 1, a cast-in-place base 2, a partially prefabricated segment 3 and a prefabricated cover beam 4, The upper end of the foundation 1 is fixedly connected to a cast-in-place base 2, the upper end of the cast-in-place base 2 is fixedly connected to a part of the prefabricated segment 3, and the upper end of the part of the prefabricated segment 3 is fixedly connected to a prefabricated cover beam 4. The connection and combination of the pouring base 2, some prefabricated segments 3 and prefabricated cover beams 4 is convenient for the overall construction and installation work;

Referring to FIG. 4 , a part of the prefabricated segment 3 includes a first prefabricated block 5 , a first matching seat frame 6 , a limit fastening structure 7 , a second prefabricated block 8 and a second matching seat frame 9 ;

The second prefabricated block 8 is arranged at the bottom position of the inner end of the partial prefabricated segment 3 , the side end position of the second prefabricated block 8 is fixedly connected with a second matching seat frame 9 , and the upper end position of the second matching seat frame 9 is matched with the first matching seat frame 9 . The seat frame 6 is fixedly connected, the center position of the first matching seat frame 6 is fixedly connected with the first prefabricated block 5, and the center positions of the first prefabricated block 5 and the second prefabricated block 8 are fixedly connected with a limited fastening structure 7, Through the combined arrangement of the first prefabricated block 5 , the first matching seat frame 6 , the limit fastening structure 7 , the second prefabricated block 8 and the second matching seat frame 9 , the overall installation and cooperation are facilitated and help to improve the reliability of the connection. stability;

Please refer to FIG. 5 , the limit fastening structure 7 includes a central link frame 10 , a support guide frame 11 , a support column frame 12 and a limit link guide block 13 ;

The central link frame 10 is arranged at the bottom position of the inner end of the limit fastening structure 7, the upper end of the central link frame 10 is fixedly connected with a support guide frame 11, and the center of the support guide frame 11 is fixedly connected with a support column frame 12, and the support column The central position of the frame 12 is fixedly connected to the limit connection guide block 13, and the installation and combination of the central link frame 10, the support guide frame 11, the support column frame 12 and the limit connection guide block 13 facilitates the matching connection work and realizes the support connection the goal of;

Please refer to FIG. 6 , the limit fastening structure 7 further includes a top plate frame 14 , a matching truss 15 , an installation limit frame 16 , a tightening push shaft 17 , a pin shaft 18 , a matching shaft column 19 , a movable frame 20 and a plug-in vertical rod twenty one;

The lower end position of the top plate frame 14 is fixedly connected with a matching shaft column 19, and the lower end position of the matching shaft column 19 is fixedly connected with a tightening push shaft 17. The lower end position of the tightening push shaft 17 is fixedly connected with an installation limiting frame 16, which tightens the push shaft. 17 is connected with the matching truss 15, the side end position of the matching truss 15 is fixedly connected with the movable frame 20, the lower end of the movable frame 20 is inserted into the pin shaft 18, and the top position of the movable frame 20 is hinged with a plug-in vertical rod 21 , through the combination of the top plate frame 14, the matching truss 15, the installation limit frame 16, the tightening push shaft 17, the pin shaft 18, the matching shaft column 19, the movable frame 20 and the plug-in vertical rod 21, it is convenient to carry out the prefabricated connection work, It is convenient to cooperate with the purpose of production;

Please refer to FIG. 7 and FIG. 8 , the prefabricated cover beam 4 includes a cover beam plate 22 and an installation structure 23 ;

The cover beam plate 22 is arranged on the top of the inner end of the prefabricated cover beam 4, and the lower end of the cover beam plate 22 is fixedly connected with the installation structure 23, and the combined connection of the cover beam plate 22 and the installation structure 23 is convenient for combined installation;

Please refer to FIG. 9 , the installation structure 23 includes a top support frame 24 , a stable platform 25 , a column frame 26 , a built-in steel frame 27 , a matching groove frame 28 , a limiting round rod 29 , a steel bar frame 30 and a flat top frame 31 ;

The side end position of the flat top frame 31 is fixedly connected with the reinforcing bar frame 30, the rear end position of the flat top frame 31 is fixedly connected with the restricting round rod 29, the center of the restricting round rod 29 is fixedly connected with the top support frame 24, and the top support frame The side end position of 24 is fixedly connected with the stable platform 25, the side end position of the stable platform 25 is fixedly connected with the pillar bracket 26, the side end position of the pillar bracket 26 is fixedly connected with the built-in steel frame 27, and the built-in steel frame 27 is fixedly connected. The position of the side end is fixedly connected with the matching groove frame 28, through the top support frame 24, the stable platform 25, the pillar frame 26, the built-in steel frame 27, the matching groove frame 28, the restricting round rod 29, the steel bar frame 30 and the flat top frame 31 The installation combination can facilitate the three-dimensional fixed installation work.

Please refer to FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 , FIG. 6 , FIG. 7 , FIG. 8 , and FIG. 9 , the mounting structure 23 is fixedly connected with the cover beam plate 22 through the top support frame 24 , and the top support frame 24 is matched with the cover beam plate 22, a groove body is provided at the center position of the matching groove frame 28, and the matching groove frame 28 is inserted into the top position of the part of the prefabricated segment 3. The connecting guide block 13 is adapted and clamped, and the top plate frame 14 is connected with the first prefabricated block 5 through the pin shaft 18. A spring column is provided at the side end of the limit connecting guide block 13, and the limit connecting guide block is 13 is connected with the installation limit frame 16 through the spring column, the support guide frame 11 is fixedly connected with the second prefabricated block 8 through the central link frame 10, and the movable frame 20 is connected with the first prefabricated block 5 through the pin shaft 18. The first matching seat frame 6 and the second matching seat frame 9 are matched and arranged, and there are four first matching seat frames 6 and second matching seat frames 9, which are symmetrical around the first prefabricated block 5 and the second prefabricated block 8 Through the installation and combination of the structure, the overall construction and combination work can be facilitated, and the coordinated assembly and production work can be facilitated.

In the implementation of this embodiment, the foundation 1, the cast-in-place base 2, some of the prefabricated segments 3, and the prefabricated cover beams 4 are installed and connected to realize the overall construction, help the load-bearing connection work, and facilitate the construction and production work. Section 3 is installed and connected through the first prefabricated block 5 , the first matching seat frame 6 , the limit fastening structure 7 , the second prefabricated block 8 and the second matching seat frame 9 , and the first prefabrication is realized through the limit fastening structure 7 . For the fixing work between the block 5 and the second prefabricated block 8, the bottom of the limit fastening structure 7 is assembled through the center link frame 10, the support guide frame 11, the support column frame 12, and the limit link guide block 13, and the center The connecting rod frame 10, the supporting guide frame 11, the supporting column frame 12, and the limit connecting guide block 13 are connected to realize the support of the bottom, which is helpful for the cooperation and fixing of the upper and lower ends, and facilitates the purpose of assembly and connection. The limit fastening structure 7 The upper part is connected by the top plate frame 14, the matching truss 15, the installation limit frame 16, the fastening push shaft 17, the pin shaft 18, the matching shaft column 19, the movable frame 20 and the plug-in vertical rod 21. The top plate frame 14 . The cooperating shaft column 19 can be pressed down and connected by external force, so as to realize the cooperating connection between the installation limit frame 16 and the limit connection guide block 13, and the setting of the movable frame 20 and the plug-in vertical rod 21 at the side end position is convenient for accompanying Movement, realize the down pressure treatment work, facilitate efficient combination, through the secondary pouring, better load-bearing connection, realize the mixed production work of steel structure and concrete structure, improve the overall bearing stiffness, prefabricated cover beam 4 through the cover The beam plate 22 and the installation structure 23 are connected and arranged, and the fixed connection with some prefabricated segments 3 can be facilitated through the installation structure 23. The installation structure 23 is connected by the top support frame 24, the stable platform 25, the pillar frame 26, the built-in steel frame 27, the matching The groove frame 28, the restricting round rod 29, the reinforcing bar frame 30 and the flat top frame 31 are combined. The slot frame 28 can facilitate the installation and limit work with some prefabricated segments 3, stabilize the setting of the platform frame 25, the pillar frame 26, and the built-in steel frame 27, which can realize bearing support and help improve the stability of the connection.

Example 2

On the basis of Embodiment 1, as shown in FIG. 10 , a first protective rib 32 and a second protective rib 33 are provided at the side end positions of some prefabricated segments 3 , and the front and rear of the first protective rib 32 and the second protective rib 33 symmetrical distribution.

In the implementation of this embodiment, the first protective ribs 32 and the second protective ribs 33 are installed and connected with some prefabricated segments 3 to realize the overall erection and construction work and the overall connection processing work. The setting of the second protective ribs 33 realizes the protection of the side position, and at the same time, the secondary pouring work can be performed, so as to better realize the integrated construction and production work, and improve the overall bearing capacity.

A new construction method for a partially precast concrete pier-column structure, comprising:

S1. Pre-install and set the foundation 1 to realize the pouring and connection work, and realize the connection and fixation of the foundation 1 and the foundation;

S2. Prefabricate part of the prefabricated segments 3, and realize the connection and installation with the foundation 1 through transportation and hoisting, and realize the fixed connection through the limit fastening structure 7. The second prefabricated block 8 at the bottom passes through the limit fastening structure 7. It is fixed with the foundation 1, and the first prefabricated block 5 and the second prefabricated block 8 are also fixedly arranged through the limit fastening structure 7;

S3. Install and fix the prefabricated cover beam 4 and some of the prefabricated segments 3 to realize the overall combined setting. The prefabricated cover beam 4 is installed and inserted with some of the prefabricated segments 3 through the installation structure 23 to realize the overall fixation, and then pass The pouring of concrete realizes the overall cooperation and facilitates the combined pouring work.

Working principle: The user installs and connects the foundation 1 to realize the support and fixation of the bottom. The cast-in-place base 2 and some prefabricated segments 3 can be installed and combined with the foundation 1 to realize the connection. Part of the prefabricated segments 3 pass through the first prefabricated block. 5. The second prefabricated block 8 is prefabricated, and can be fixedly connected through the limit fastening structure 7 to realize on-site assembly and production. After the installation is completed, the second pouring of concrete can realize the overall combination and limit fastening. The bottom of the structure 7 is provided with the central link frame 10, the support guide frame 11, the support column frame 12 and the limit connecting guide block 13, so that the bottom can be loaded, and the side end of the limit connecting guide block 13 is provided with a spring frame , is beneficial to the combined connection work, the upper end of the limit fastening structure 7 can be matched with the lower end, and the matching shaft column 19 can be installed through the outside to achieve conduction, drive the fastening push shaft 17, the installation limit frame 16 and the limit connection The guide block 13 is connected to the side end of the top plate frame 14 through the movable frame 20 and the plug-in vertical rod 21, which can realize the downward pressing and supporting work. The pin shaft 18 at the side end is convenient for connecting with the first prefabricated block 5 The combined connection work is convenient for fixed installation and realizes the purpose of combined production. The prefabricated cover beam 4 is connected through the cover beam plate 22 and the installation structure 23. The installation structure 23 facilitates the connection of some prefabricated segments 3 and prefabricated cover beams 4. Fixed connection, the installation structure 23 is supported by the top support frame 24, the stable platform 25, the pillar frame 26, and the built-in steel frame 27 can realize the bearing installation of the matching slot frame 28, and the matching slot frame 28 can be combined with some prefabricated segments. 3. Cooperate to achieve the purpose of fastened connection. The reinforcement frame 30 and the flat-top frame 31 at the side end position facilitate the pre-embedded production work, improve the stability of the connection, and complete the work.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a novel part precast concrete pier column structure, includes basis (1), cast-in-place base (2), part prefabricated segment (3) and prefabricated bent cap (4), its characterized in that: the upper end of the foundation (1) is fixedly connected with a cast-in-place base (2), the upper end of the cast-in-place base (2) is fixedly connected with a part of prefabricated sections (3), and the upper end of the part of prefabricated sections (3) is fixedly connected with prefabricated capping beams (4);

the partial prefabricated section (3) comprises a first prefabricated block (5), a first matching seat frame (6), a limiting and fastening structure (7), a second prefabricated block (8) and a second matching seat frame (9); the second precast block (8) is arranged at the bottom of the inner end of a part of the precast segment (3), a second matching seat frame (9) is fixedly connected to the side end of the second precast block (8), the upper end of the second matching seat frame (9) is fixedly connected with the first matching seat frame (6), the center of the first matching seat frame (6) is fixedly connected with the first precast block (5), and the center of the first precast block (5) and the second precast block (8) is fixedly connected with a limiting fastening structure (7);

the limiting fastening structure (7) comprises a central connecting rod frame (10), a supporting guide frame (11), a supporting column frame (12) and a limiting connecting guide block (13); the central connecting rod frame (10) is arranged at the bottom of the inner end of the limiting fastening structure (7), the upper end of the central connecting rod frame (10) is fixedly connected with a supporting guide frame (11), the center of the supporting guide frame (11) is fixedly connected with a supporting column frame (12), and the central position of the supporting column frame (12) is fixedly connected with a limiting connecting guide block (13);

the limiting and fastening structure (7) further comprises a top plate frame (14), a matching truss (15), an installation limiting frame (16), a fastening push shaft (17), a pin shaft (18), a matching shaft column (19), a movable frame (20) and an insertion vertical rod (21); the lower end position of the top plate frame (14) is fixedly connected with a matching shaft column (19), the lower end position of the matching shaft column (19) is fixedly connected with a fastening push shaft (17), the lower end position of the fastening push shaft (17) is fixedly connected with an installation limiting frame (16), the fastening push shaft (17) is connected with a matching truss (15) in a penetrating manner, the side end position of the matching truss (15) is fixedly connected with a movable frame (20), the lower end of the movable frame (20) is spliced with a pin shaft (18), and the top position of the movable frame (20) is hinged with a splicing upright rod (21);

the prefabricated capping beam (4) comprises a capping beam plate (22) and a mounting structure (23); the cover beam plate (22) is arranged at the top of the inner end of the prefabricated cover beam (4), and the lower end of the cover beam plate (22) is fixedly connected with a mounting structure (23);

the mounting structure (23) comprises a top support frame (24), a stabilizing rack (25), a strut frame (26), a built-in steel frame (27), a matching groove frame (28), a limiting round rod (29), a steel bar frame (30) and a flat top frame (31); the steel bar frame (30) is fixedly connected to the side end position of the flat top frame (31), the rear end position of the flat top frame (31) is fixedly connected with the limiting round rod (29), the center of the limiting round rod (29) is fixedly connected with the top support frame (24), the side end position of the top support frame (24) is fixedly connected with the stabilizing rack (25), the side end position of the stabilizing rack (25) is fixedly connected with the support column frame (26), the side end position of the support column frame (26) is fixedly connected with the built-in steel frame (27), and the side end position of the built-in steel frame (27) is fixedly connected with the matching groove frame (28).

2. The novel partially precast concrete pier structure according to claim 2, wherein: the mounting structure (23) is fixedly connected with the cover beam plate (22) through a top bracing frame (24), and the top bracing frame (24) is matched with the cover beam plate (22).

3. The novel partially precast concrete pier structure according to claim 2, wherein: the center of the matching groove frame (28) is provided with a groove body. And the matched groove frame (28) is inserted and limited with the top position of part of the prefabricated segment (3).

4. The novel partially precast concrete pier structure according to claim 3, wherein: the installation limiting frame (16) and the limiting connecting guide block (13) are arranged in a matched clamping mode, and the top disc frame (14) is connected with the first prefabricated block (5) through a pin shaft (18).

5. The novel partially precast concrete pier structure according to claim 4, wherein: the side end position of the limiting and connecting guide block (13) is provided with a spring column, and the limiting and connecting guide block (13) is connected with the installation limiting frame (16) through the spring column.

6. The novel partially precast concrete pier structure according to claim 5, wherein: the supporting guide frame (11) is fixedly connected with the second precast block (8) through a central connecting rod frame (10).

7. The novel partially precast concrete pier structure according to claim 6, wherein: the movable frame (20) is in limited connection with the first precast block (5) through a pin shaft (18).

8. The novel partially precast concrete pier structure according to claim 7, wherein: first cooperation seat frame (6), second cooperation seat frame (9) cooperate the setting, and first cooperation seat frame (6), second cooperation seat frame (9) are equipped with four, all set up around first prefabricated section (5), second prefabricated section (8) symmetry.

9. The novel partially precast concrete pier structure according to claim 8, wherein: the side end position department of partly prefabricating section (3) is equipped with first protection muscle (32) and second protection muscle (33), first protection muscle (32), second protection muscle (33) front and back symmetric distribution.

10. A construction method of a novel partially precast concrete pier column structure is characterized by comprising the following steps:

s1, pre-installing and setting the foundation (1), so as to realize pouring connection work and realize connection and fixation of the foundation (1) and the foundation;

s2, prefabricating and producing a part of prefabricated sections (3), transporting and hoisting to realize connection and installation with a foundation (1), realizing fixed connection through a limiting and fastening structure (7), fixing a second prefabricated block (8) at the bottom with the foundation (1) through the limiting and fastening structure (7), and fixing the first prefabricated block (5) and the second prefabricated block (8) through the limiting and fastening structure (7);

s3, the prefabricated cover beam (4) and the part of the prefabricated sections (3) are installed and fixed, integral combination setting is achieved, the prefabricated cover beam (4) is installed and spliced with the part of the prefabricated sections (3) through the installation structure (23), integral fixing is achieved, then integral matching is achieved through pouring of concrete, and combined pouring work is facilitated.

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