CN111894133A - A prefabricated steel, bamboo and wood single-layer spherical shell structure system - Google Patents

Abstract

The invention relates to an assembled steel, bamboo and wood single-layer spherical shell structure system, comprising a plurality of main rods, a plurality of secondary rods, a main rod connection node, a secondary rod connection node, and a main-secondary rod connection node; A triangular unit space skeleton, a plurality of equal-sized triangular unit space skeletons form a spherical shell, and every six main rods are connected by a main rod connection node; The interior of the skeleton is divided into multiple triangular areas of equal size, the secondary rods in the middle are spliced through the secondary rod connection nodes, and the main rod and the edge secondary rods are spliced through the primary-secondary rod connection nodes. The invention is convenient for construction, can be transported to the site, can be assembled directly on site, and belongs to the technical field of a new type of building structure system.

Description

A prefabricated steel, bamboo and wood single-layer spherical shell structure system

technical field

The invention relates to a novel building structure system, in particular to a prefabricated steel, bamboo and wood single-layer spherical shell structure system.

Background technique

Prefabricated building refers to the transportation of some or all components of the building structure to the site after being processed and manufactured by the factory, and then installed through reliable connection. Comprehensive economic benefits and other advantages. The traditional residential construction method in my country basically adopts the cast-in-place method, because the cast-in-place structure is more mature in technology than the prefabricated structure, and has been widely recognized in the engineering field, but there is an obvious problem with the cast-in-place structural system: high cost, construction The cycle is long. In contrast, the prefabricated residential system is built in an industrialized way. Some or all components of the building are prefabricated in the factory, and then transported to the construction site. The components are assembled into one through reliable connections. It has the advantages of short construction period, stable quality, reliability, environmental protection and energy saving, which can greatly relieve the pressure of the market.

Modern steel, bamboo and wood buildings are gradually emerging in my country. Bamboo and wood are renewable resources and can absorb carbon dioxide when used as building materials. At present, there are a large number of fast-growing bamboos and woods that have not been harvested in my country, and they have rotted without being fully utilized. If we can promote the development of steel, bamboo and wood buildings, these materials can be fully utilized, and the development of related industrial chains can also be stimulated.

In the world of large-span flexible structures, reticulated shell structures have always played an important role. The reticulated shell structure is light in weight, changeable in shape, large in internal space, and can disperse external force through a reasonable shape, and is easy to construct, which is conducive to industrial production. Therefore, the reticulated shell structure has developed rapidly both at home and abroad. At present, most of the single-layer reticulated shell structures in my country are steel reticulated shells, and the related research on steel, bamboo and wood reticulated shells is very insufficient. In addition, the domestic application and research of single-layer reticulated shells are mostly used as roofs, and the shells are mostly hemispherical shells, and there is almost no application of whole spheres.

The existing reticulated shell structure has the following disadvantages: 1. The steel reticulated shell structure is adopted, which is difficult to construct and causes great pollution; 2. There is no spherical reticulated shell structure.

SUMMARY OF THE INVENTION

Aiming at the technical problems existing in the prior art, the purpose of the present invention is to provide a prefabricated steel, bamboo and wood single-layer spherical shell structure system that forms a whole spherical structure by splicing.

In order to achieve the above object, the present invention adopts the following technical solutions:

A prefabricated steel, bamboo and wood single-layer spherical shell structure system includes a plurality of main rods, a plurality of secondary rods, a main rod connection node, a secondary rod connection node, and a main-secondary rod connection node; the three main rods form a triangular unit Space skeleton, a plurality of equal-sized triangular unit space skeletons form a spherical shell, every six main rods are spliced through a main rod connection node; three secondary rods form a triangle, and multiple equal-sized triangles separate the interior of the triangular unit space skeleton The secondary rods in the middle are spliced through the secondary rod connection nodes, and the main rod and the edge secondary rods are spliced through the primary-secondary rod connection nodes.

As a preference, the connecting nodes of the main rod include a ring, a cover plate, a connecting plate, and a bolt; the number of connecting plates is six groups, which are evenly distributed along the circumference of the ring, the cover plates are arranged on both ends of the ring, and the connecting plates are connected with The end of the main rod is sleeved, and the bolt locks the connection plate and the sleeved part of the main rod.

As a preferred option, the outer casing of the connecting plate is outside the main rod or the connecting plate is embedded in the main rod.

As a preference, the cross-sections of the main rod and the secondary rod are both rectangular, and both include an outer frame. The inside of the outer frame is provided with a hollow portion for placing electrical conduits, and the outside of the outer frame is provided with a slot for placing signal conduits. The alloy cover plate is connected with the outer frame to cover the notch; the connecting node of the main rod is provided with a hole through which the power supply line pipe passes; the wall surface of the hollow part is provided with an inner reinforcement layer of AS.

As a preference, the connecting nodes of the secondary bars are hardware connectors, including six connecting arms evenly distributed around the circumference, four of which are relatively long and two are relatively short; every six secondary bars are connected to each other through a secondary bar connecting node. The six secondary rods are evenly distributed around the circumference. Among the six secondary rods, two secondary rods located in the same diameter direction are integrated into a whole to form a main structural rod with a longer length, and the remaining four secondary rods are secondary structural rods; the main structural rods It is close to each other with the secondary structure rod, and the secondary structure rod is close to each other; the hardware connector is embedded in the slot of the secondary rod, the hardware connector and the secondary rod are connected by screws, and the longer connecting arm is connected to the secondary structure rod , the shorter connecting arm is connected to the main construction rod.

As a preference, the main-secondary rod connection node is a hardware connector, including two V-shaped connecting arms; the hardware connector is embedded in the slot opened by the main rod and the secondary rod, and the hardware connector and the main rod are connected by screws. The hardware connector is connected with the secondary rod by screws.

As a preference, the material of the main rod is wood, bamboo, wood-plastic, bamboo-plastic or composite bamboo, and the material of the secondary rod is wood, bamboo, wood-plastic, bamboo-plastic or composite bamboo; the main rod connection node, the secondary rod connection node The material of the connection node with the primary-secondary rod is steel.

As a preference, the triangular unit space skeleton enclosed by the three main rods is an equilateral triangle, and the triangle enclosed by the three secondary rods is an equilateral triangle; a triangular unit space skeleton is provided with eighteen secondary rods to separate the triangular unit space skeleton into sixteen equilateral triangle areas.

As a preference, a plurality of triangular unit space skeletons are removed from the spherical shell, the removed triangular unit space skeletons form two blank areas, and the two blank areas form two openings for people to pass through.

As a preference, the prefabricated steel, bamboo and wood single-layer spherical shell structural system is a suspended structural system or a floor-standing structural system.

In general, the present invention has the following advantages:

1. The construction is convenient. The nodes are mainly connected by ring connection or hinge type. After the node components are welded in the factory, they are transported to the site and can be assembled directly on site.

2. Using green, energy-saving and renewable natural materials, the carbon absorption capacity of the reticulated shell is greatly improved, and the carbon content is effectively preserved. In addition, renewable resources can be recycled. Compared with the processing of concrete and steel, wood processing has minimal environmental pollution.

3. The use of biomass materials and steel has excellent seismic performance. Biomass and steel itself are good seismic materials, and their light weight can effectively reduce inertial force. The use of biomass rods and bolts can effectively absorb seismic force and energy consumption and reduce the impact of earthquake action on the structure.

4. The secondary rod is equivalent to the role of the secondary beam in the frame structure, which not only reduces the calculation span of the main rod, but also provides a certain stiffness for the spherical shell.

5. Beautiful appearance and good visual effect.

Description of drawings

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a perspective view of Embodiment 2 of the present invention.

Figure 3 is a schematic structural diagram of a triangular unit space skeleton.

Fig. 4 is a partial enlarged view of the connecting node of the main rod.

FIG. 5 is a cross-sectional view of FIG. 4 .

FIG. 6 is a partial enlarged view of the connecting node of the main rod of the second embodiment.

Figure 7 is a partial enlarged view of the primary-secondary rod connecting node.

Fig. 8 is a partial enlarged view of the connecting node of the secondary rod.

Figure 9 is an exploded view of the main rod connection node.

10 is a cross-sectional view of the main rod.

Figure 11 is a cross-sectional view of the secondary rod.

Among them, 1 is the main rod, 2 is the secondary rod, 3 is the main rod connecting node, 4 is the secondary rod connecting node, 5 is the main-secondary rod connecting node, 6 is the outer frame, 7 is the hollow part, 8 is the notch, 9 is an aluminum alloy cover plate, 10 is an AS inner reinforcement layer, and 11 is a hole.

2-1 is the main construction rod, 2-2 is the secondary construction rod, 3-1 is the ring, 3-2 is the cover plate, 3-3 is the connecting plate, and 3-4 is the bolt.

Detailed ways

The present invention will be described in further detail below in conjunction with specific embodiments.

Example 1

An assembled steel-bamboo-wood single-layer spherical shell structure system comprises a plurality of main rods, a plurality of secondary rods, a main rod connection node, a secondary rod connection node, and a main-secondary rod connection node. This embodiment is a suspended structure system, which is suspended and hoisted as a whole after assembly. After the main rod, secondary rod, main rod connection node, secondary rod connection node, and main-secondary rod connection node are fabricated in the factory, they are transported to the site for direct assembly.

Three main rods form a triangular unit space skeleton, and multiple triangular unit space skeletons of equal size form a complete spherical shell. Every six main rods are spliced through a main rod connection node; three secondary rods form a triangle. Triangles of equal size divide the interior of the triangular unit space skeleton into multiple triangular regions of equal size. The secondary rods in the middle are spliced through the secondary rod connection nodes, and the main rod and the edge secondary rods are spliced through the primary-secondary rod connection nodes.

The connecting nodes of the main rod include a ring, a cover plate, a connecting plate, and a bolt; the number of connecting plates is six groups, which are evenly distributed along the circumference of the ring. Socket connection, the bolt locks the connection plate and the socket part of the main rod, and the steel bolts are used for positioning and force transmission. The connecting plate is embedded in the main rod. The connection plate has reserved mounting holes, which are bolt positioning holes, which are convenient for bolt installation. The size, arrangement, specific number and size of the bolt holes should be determined by the internal force calculation derived from the design of the reticulated shell and should meet the structural requirements specified in the specification.

The secondary rod connecting nodes are hardware connectors, including six connecting arms evenly distributed around the circumference, four of which are longer and two are shorter; every six secondary rods are connected through a secondary rod connecting node, and six secondary rods are connected Evenly distributed around the circumference, among the six secondary rods, two of them located in the same diameter direction are integrated into a whole, forming a main structural rod with a longer length, and the remaining four secondary rods are secondary structural rods; They are close to each other, and the secondary structural rods are close to each other; The arm is connected to the main construction rod. After the hardware connector is placed, the slot is covered by an aluminum alloy cover. On the side with the notches, the primary and secondary bars are flush.

The main-secondary rod connection node is a hardware connector, including two V-shaped connecting arms; the hardware connector is embedded in the slot opened by the main rod and the secondary rod, the hardware connector is connected with the main rod by screws, and the hardware connector is connected with the secondary rod. The rods are connected by screws. After the hardware connector is placed, the slot is covered by an aluminum alloy cover. On the side with the notches, the primary and secondary bars are flush.

The cross-sections of the main rod and the secondary rod are rectangular, and both include an outer frame. The inner frame of the outer frame is provided with a hollow part for placing electrical conduits, and the outside of the outer frame is provided with a notch for placing signal conduits. The notch is located at the connection at the same time. It is used to cooperate with the hardware connector, and the aluminum alloy cover is connected to the outer frame to cover the notch; the main pole connection node is provided with a hole through which the power supply line pipe passes, which is specifically set at the web position of the ring of the main pole connection node ; The wall of the hollow part is provided with an inner reinforcement layer of AS. The primary and secondary rods differ in size, with the primary rod being thicker and the secondary rod being thinner.

The material of the main rod is wood, bamboo, wood plastic, bamboo plastic or composite bamboo, the preferred bamboo in this embodiment, the material of the secondary rod is wood, bamboo, wood plastic, bamboo plastic or composite bamboo, the preferred bamboo in this embodiment; The material of the connection node, the secondary bar connection node and the primary-secondary bar connection node are all steel, and the steel grade of the steel member can be selected from different grades of steel according to the design needs.

The triangular unit space skeleton surrounded by three main rods is an equilateral triangle, and the triangle surrounded by three secondary rods is an equilateral triangle; there are eighteen secondary rods in a triangular unit space skeleton, which divides the triangular unit space skeleton into sixteen regular Triangular area.

The invention adopts steel bamboo and wood rods to replace traditional steel structure rods, and the nodes are connected by bolts on site. By changing the component materials and connection methods of traditional reticulated shells, on the premise of ensuring the safety and effectiveness of the structure, the goal of energy saving and environmental protection is achieved, and the construction difficulty is also reduced.

Embodiment 2

In this embodiment, a plurality of triangular unit space skeletons are removed from the spherical shell of a prefabricated steel, bamboo and wood single-layer spherical shell structure system, the removed triangular unit space skeletons form two blank areas, and the two blank areas constitute two There is a hole for people to pass through, so that the spherical shell forms a one-chamber structure. A prefabricated steel-bamboo-wood single-layer spherical shell structure system adopts a floor-standing structure system.

In this embodiment, the connecting plate is sheathed outside the main rod.

The parts not mentioned in this embodiment are the same as those in the first embodiment.

The above-mentioned embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above-mentioned embodiments, and any other changes, modifications, substitutions, combinations, The simplification should be equivalent replacement manners, which are all included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an assembled steel bamboo wood individual layer spherical shell structure system which characterized in that: the device comprises a plurality of main rods, a plurality of secondary rods, main rod connecting nodes, secondary rod connecting nodes and main-secondary rod connecting nodes; the three main rods form a triangular unit space framework, a plurality of triangular unit space frameworks with the same size form a spherical shell, and every six main rods are spliced through a main rod connecting node; the three secondary rods form a triangle in a surrounding mode, the interior of the triangular unit space skeleton is divided into a plurality of triangular areas with the same size by the aid of the triangles with the same size, the secondary rods in the middle are spliced through secondary rod connecting nodes, and the main rod is spliced with the secondary rods on the edges through main-secondary rod connecting nodes.

2. The assembled steel bamboo wood single-layer spherical shell structure system of claim 1, which is characterized in that: the main rod connecting node comprises a circular ring, a cover plate, a connecting plate and a bolt; the quantity of connecting plate is six groups, along the ring circumference equipartition, and the apron sets up the both ends face at the ring, and the connecting plate cup joints with the tip of mobile jib, and the bolt is with the connecting plate and the portion locking that cup joints of mobile jib.

3. The assembled steel bamboo wood single-layer spherical shell structure system of claim 2, characterized in that: the connecting plate is sleeved outside the main rod or the connecting plate is embedded in the main rod.

4. The assembled steel bamboo wood single-layer spherical shell structure system of claim 1, which is characterized in that: the cross sections of the main rod and the secondary rod are rectangular and respectively comprise an outer frame, a hollow part for placing a wire tube is arranged in the outer frame, a notch for placing a signal wire tube is formed in the outer side of the outer frame, and an aluminum alloy cover plate is connected with the outer frame to cover the notch; the main rod connecting node is provided with a hole through which a power supply wire pipe passes; the wall surface of the hollow part is provided with an AS inner enhancement layer.

5. The assembled steel bamboo wood single-layer spherical shell structure system of claim 4, which is characterized in that: the secondary rod connecting node is a hardware connecting piece and comprises six connecting arms which are uniformly distributed on the circumference, wherein four connecting arms are longer, and two connecting arms are shorter; every six secondary rods are connected through a secondary rod connecting node, the six secondary rods are uniformly distributed on the circumference, two secondary rods in the six secondary rods positioned in the same diameter direction are integrated to form a main structural rod with longer length, and the other four secondary rods are secondary structural rods; the main construction rod and the secondary construction rod are mutually clung, and the secondary construction rods are mutually clung; the hardware connecting piece is embedded into the notch of the secondary rod, the hardware connecting piece is connected with the secondary rod through a screw, the longer connecting arm is connected with the secondary construction rod, and the shorter connecting arm is connected with the main construction rod.

6. The assembled steel bamboo wood single-layer spherical shell structure system of claim 4, which is characterized in that: the primary-secondary rod connecting node is a hardware connecting piece and comprises two V-shaped connecting arms; the hardware connecting piece is embedded into the notches formed in the main rod and the secondary rod, the hardware connecting piece is connected with the main rod through screws, and the hardware connecting piece is connected with the secondary rod through screws.

7. The assembled steel bamboo wood single-layer spherical shell structure system of claim 1, which is characterized in that: the main rod is made of wood, bamboo, wood plastic, bamboo plastic or composite bamboo, and the secondary rod is made of wood, bamboo, wood plastic, bamboo plastic or composite bamboo; the main rod connecting node, the secondary rod connecting node and the main-secondary rod connecting node are all made of steel.

8. The assembled steel bamboo wood single-layer spherical shell structure system of claim 1, which is characterized in that: the triangular unit space skeleton surrounded by the three main rods is a regular triangle, and the triangle surrounded by the three secondary rods is a regular triangle; eighteen secondary rods are arranged in one triangular unit space framework to divide the triangular unit space framework into sixteen regular triangular areas.

9. The assembled steel bamboo wood single-layer spherical shell structure system of claim 1, which is characterized in that: a plurality of triangular unit space skeletons are removed from the spherical shell, two blank areas are formed by the removed triangular unit space skeletons, and two blank areas form two holes for people to flow back and forth.

10. The assembled steel bamboo wood single-layer spherical shell structure system of claim 1, which is characterized in that: is a suspended structure system or a floor type structure system.

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