Full-prefabricated assembly type concrete structure

Abstract

The utility model relates to a full-prefabricated assembly type concrete structure, and belongs to the technical field of prefabricated concrete members. The steel wire mesh structure comprises a plurality of steel cables arranged in parallel, two reinforcement cages arranged symmetrically, a first steel wire mesh laid on the top faces of the steel cables and located between the two reinforcement cages, an interlayer arranged above the first steel wire mesh and a second steel wire mesh laid on the top face of the interlayer. And concrete submerging the steel cables and the first steel wire meshes is poured into the forming die cavities to form an outer wall body, and concrete submerging the interlayers, the second steel wire meshes and the reinforcement cages is poured into the forming die cavities to form an inner wall body. The prefabricated concrete structure has the effect of enhancing the strength of the prefabricated concrete structure.

Description

Technical Field

[0001] The present application relates to the technical field of precast concrete components, and in particular to a fully precast assembled concrete structure. Background Art

[0002] With the continuous development of modern construction technology, prefabricated and assembled concrete structures have attracted widespread attention due to their high efficiency, environmental protection and excellent construction performance. Such structures are prefabricated in factories and then transported to the site for assembly, which greatly improves construction efficiency and quality.

[0003] In traditional prefabricated concrete structures, a combination of steel bars and concrete is often used to enhance the strength of the structure.

[0004] The present application provides another technical solution for a precast concrete structure with higher strength, aiming to provide technicians in this field with a variety of options for solving problems. Utility Model Content

[0005] In order to enhance the strength of precast concrete structures, the present application provides a fully precast assembled concrete structure.

[0006] The fully prefabricated assembled concrete structure provided in this application adopts the following technical solution:

[0007] A fully prefabricated assembled concrete structure includes a plurality of steel cables arranged parallel to each other, two symmetrically arranged steel cages, a first steel wire mesh laid on the top surfaces of the steel cables and located between the two steel cages, a sandwich layer arranged above the first steel wire mesh, and a second steel wire mesh laid on the top surface of the sandwich layer. Concrete is poured into a forming mold cavity to submerge the steel cables and the first steel wire mesh to form an outer wall, and concrete is poured into the forming mold cavity to submerge the sandwich layer, the second steel wire mesh, and the steel cages to form an inner wall.

[0008] By adopting the above technical solution, steel cables are sequentially strung in the forming cavity, and two steel cages are sequentially placed at both ends of the forming cavity. Then, a first steel mesh is placed between the two steel cages, and concrete that submerges the steel cables and the first steel mesh is poured into the forming cavity to form an outer wall. Subsequently, a sandwich is laid on the top surface of the outer wall, and a second steel mesh is laid on the top surface of the sandwich, and the concrete submerges the sandwich, the second steel mesh and the steel cage to form an inner wall. Compared with a precast concrete structure that uses a combination of steel bars and concrete, the presence of the steel cables, the steel cage, the first steel mesh, the sandwich, and the second steel mesh gives the outer wall and the inner wall higher strength.

[0009] Preferably, the interlayer includes a first rigid foam plastic board and a second rigid foam plastic board arranged on the top surface of the outer wall and located between two steel cages, a dovetail block is integrally formed on the second rigid foam plastic board, and a dovetail groove is provided on the bottom surface of the first rigid foam plastic board for sliding connection with the dovetail block.

[0010] By adopting the above technical solution, the connection between the first rigid foam plastic board and the second rigid foam plastic board is achieved under the connecting action of the dovetail block and the dovetail groove, and the arrangement of the first rigid foam plastic board and the second rigid foam plastic board enables the inner wall to have good thermal insulation performance.

[0011] Preferably, a plurality of supporting members for supporting the second steel wire mesh are provided on the top surface of the interlayer.

[0012] By adopting the above technical solution, the provision of the supporting member can not only support the second steel mesh, but also facilitates close integration with the concrete to enhance the strength of the overall structure.

[0013] Preferably, the supporting member includes a sleeve embedded in the interlayer, a threaded rod threadedly connected to the sleeve, and a supporting block arranged at the top end of the threaded rod, and the top surface of the supporting block supports the second steel mesh.

[0014] By adopting the above technical solution, the top surface of the supporting block supports the second steel wire mesh, thereby achieving support of the second steel wire mesh by the supporting member.

[0015] Preferably, a support groove matching the second steel mesh is provided on the top surface of the support block.

[0016] By adopting the above technical solution, the arrangement of the support groove enables the support block to support the second steel wire mesh more stably.

[0017] Preferably, the steel cage includes a plurality of longitudinally distributed and mutually parallel steel rings and four connecting steel bars fixedly connected to the four inner corners of the steel rings, and an extension section is left at one end of the steel ring close to the steel cable.

[0018] By adopting the above technical solution and arranging the steel bar ring and the connecting steel bars, the overall structure of the steel cage is made more stable and firm.

[0019] Preferably, the steel cable is offset from the extension section, and the bottom surface of the connecting steel bar close to the extension section abuts against the top surface of the steel cable.

[0020] By adopting the above technical solution, the bottom surface of the connecting steel bar near the extension section abuts against the top surface of the steel cable, so that the steel cage and the steel cable can be more tightly connected together, thereby enhancing the strength of the outer wall.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. Steel cables are sequentially strung within a forming cavity, and two reinforcement cages are sequentially placed at either end of the forming cavity. A first steel mesh is then placed between the two reinforcement cages, and concrete is poured into the forming cavity, submerging the steel cables and the first steel mesh to form an outer wall. Next, a sandwich is laid on top of the outer wall, and a second steel mesh is laid on top of the sandwich. The concrete then submerges the sandwich, the second steel mesh, and the reinforcement cage to form an inner wall. Compared to precast concrete structures that combine steel bars and concrete, the presence of the steel cables, reinforcement cage, first steel mesh, sandwich, and second steel mesh ensures that the outer and inner walls have greater strength.

[0023] 2. The dovetail block and the dovetail groove connect the first rigid foam plastic board and the second rigid foam plastic board, and the arrangement of the first rigid foam plastic board and the second rigid foam plastic board ensures that the inner wall has good thermal insulation performance;

[0024] 3. The setting of the support member can not only support the second steel mesh, but also facilitate close integration with the concrete to enhance the strength of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of this application.

[0026] Figure 2 It is an exploded view of the steel cage, steel cables and the first wire mesh.

[0027] Figure 3 It is a schematic structural diagram of the interlayer, support member and second steel wire mesh of the present application.

[0028] Figure 4 It is a structural schematic diagram of the support member of the present application.

[0029] Explanation of the accompanying drawings: 1. Outer wall; 11. Steel cable; 12. First steel wire mesh; 13. Steel bar ring; 131. Extension section; 14. Connecting steel bar; 2. Inner wall; 21. Second steel wire mesh; 22. Sleeve; 221. Limiting ring; 23. Threaded rod; 24. Support block; 241. Support groove; 25. First rigid foam plastic board; 251. Dovetail groove; 26. Second rigid foam plastic board; 261. Dovetail block. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 This application is described in further detail.

[0031] The present application discloses a fully prefabricated assembled concrete structure. Figure 1 and Figure 2 The fully prefabricated assembled concrete structure includes a plurality of steel cables 11 arranged parallel to each other, two symmetrically arranged steel cages, a first steel mesh 12 laid on the top surface of the steel cables 11 and located between the two steel cages, a sandwich layer arranged above the first steel mesh 12, and a second steel mesh 21 laid on the top surface of the sandwich layer; concrete is poured into the forming cavity to submerge the steel cables 11 and the first steel mesh 12 to form an outer wall 1, and concrete is poured into the forming cavity to submerge the sandwich layer, the second steel mesh 21, and the steel cages to form an inner wall 2.

[0032] Reference Figure 1 and Figure 2 Each steel cage includes a plurality of longitudinally distributed and mutually parallel steel rings 13 and four connecting steel bars 14 fixedly connected to the four inner corners of the steel rings 13; the length direction of the connecting steel bars 14 is perpendicular to the length direction of the steel cable 11.

[0033] During the process of forming the exterior wall 1, side molds are first installed around the top surface of the mold platform so that the mold platform and the side molds together form a rectangular molding cavity with an upper opening; then, multiple steel cables 11 are strung onto the side molds in sequence so that the two ends of the steel cables 11 pass through the two ends of the molding cavity respectively and extend outside the side molds, and then each steel cable 11 is tightened by using a tensioning construction process outside the hydraulic device so that the steel cables 11 located in the molding cavity are in a straightened state.

[0034] A steel bar is pressed into a steel ring 13 using a bending device, leaving an extension 131 at the end of the steel ring 13 near the steel cable 11. Four connecting steel bars 14 are fixed to the four corners of the inner side of the steel ring 13 to form a steel cage with extensions 131. The two steel cages are placed in sequence at both ends of the forming cavity, with the steel cable 11 and the extensions 131 offset, and the bottom surface of the connecting steel bars 14 near the extensions 131 abutting the top surface of the steel cable 11. A first steel mesh 12 is placed between the two steel cages, and finally, concrete is poured into the forming cavity so that the poured concrete submerges the steel cable 11 and the first steel mesh 12, thereby forming the exterior wall 1. Because the steel cable 11, the first steel mesh 12, and the steel cage are arranged in the exterior wall 1, the exterior wall 1 can resist the effects of expansion or contraction due to weather changes.

[0035] Reference Figure 3 and Figure 4 The interlayer is laid on the top surface of the outer wall 1 and is located between the two steel cages. The top surface of the interlayer is provided with a plurality of supporting members for supporting the second steel mesh 21. The supporting members include a sleeve 22 embedded in the interlayer, a threaded rod 23 threadedly connected to the sleeve 22, and a supporting block 24 rotatably connected to the top of the threaded rod 23. The top surface of the supporting block 24 supports the second steel mesh 21.

[0036] The sleeve 22 is a hollow cylinder with an upper opening. Its inner wall is internally threaded, allowing it to be threadedly connected to the threaded rod 23. A retaining ring 221 is fixedly mounted on the upper opening of the sleeve 22, with the bottom surface of the retaining ring 221 abutting the top surface of the interlayer. To ensure that the support block 24 can more firmly support the second steel mesh 21, its top surface is provided with a support groove 241 that matches the second steel mesh 21. The support groove 241 supports the transverse or longitudinal reinforcement of the second steel mesh 21.

[0037] Since the arrangement directions of the transverse ribs or longitudinal ribs of the second steel mesh 21 are inconsistent, the support block 24 can be rotated according to actual conditions so that the support groove 241 can match the longitudinal ribs or transverse ribs of the second steel mesh 21 .

[0038] Reference Figure 3 and Figure 4 The interlayer includes a plurality of first rigid foam panels 25 and second rigid foam panels 26 connected in sequence. The second rigid foam panels 26 are positioned between two adjacent first rigid foam panels 25. Dovetail blocks 261 are integrally formed on both sides of the second rigid foam panels 26. The bottom surfaces of the first rigid foam panels 25 are provided with dovetail grooves 251 corresponding to the positions of the dovetail blocks 261. The dovetail grooves 251 are lower than the height of the first rigid foam panels 25. The dovetail blocks 261 are slidably connected to the corresponding dovetail grooves 251 to connect the first rigid foam panels 25 and the second rigid foam panels 26. The interlayer is made of rigid foam insulation material, which provides the interior wall 2 with excellent thermal insulation properties.

[0039] Thus, a first rigid foam plastic board 25 and a second rigid foam plastic board 26 are sequentially laid on the top surface of the exterior wall 1 and between the two steel cages. The first rigid foam plastic board 25 and the second rigid foam plastic board 26 are connected together by the connection between the dovetail block 261 and the dovetail groove 251. The threaded rod 23 is then threaded onto the sleeve 22. A second steel mesh 21 is then laid on the top surface of the interlayer, and the support groove 241 supports the second steel mesh 21. Finally, concrete is poured into the forming cavity so that the poured concrete submerges the interlayer, the second steel mesh 21, and the steel cage, thereby forming the interior wall 2. The provision of the support not only supports the second steel mesh 21 but also facilitates its close integration with the concrete, thereby enhancing the strength of the overall structure.

[0040] It should be noted that since the steel cage is located in the forming cavity and there is a gap between the steel cage and the inner side of the forming cavity, the steel cage will be completely submerged in the concrete after pouring the concrete; and the steel cable 11 extending outside the forming cavity will be cut off, and the outer surface of the outer wall 1 and the outer surface of the inner wall 2 will be sandblasted in the later stage, so that the surrounding areas of the outer wall 1 and the surrounding areas of the inner wall 2 are all concrete structures.

[0041] On the other hand, in order to facilitate the lifting of the outer wall 1 and the inner wall 2, during the casting process of the outer wall 1 and the inner wall 2, lifting parts will be pre-embedded at the same end of the outer wall 1 and the inner wall 2, so as to facilitate the lifting of the outer wall 1 and the inner wall 2 by a crane later;

[0042] At the same time, in order to facilitate the installation of the outer wall 1 and the inner wall 2, during the casting process of the outer wall 1 and the inner wall 2, a demoldable connecting piece will be pre-embedded at the other same end of the outer wall 1 and the inner wall 2. When the outer wall 1 and the inner wall 2 are solidified, the connecting piece will be taken out to form a connecting hole at the position of the connecting piece; the outer wall 1 and the inner wall 2 can be installed through the connecting hole.

[0043] The implementation principle of a fully prefabricated assembled concrete structure in an embodiment of the present application is as follows: steel cables 11 are sequentially strung in a forming mold cavity, and two steel cages are sequentially placed at both ends of the forming mold cavity, and then a first steel mesh 12 is placed between the two steel cages, and concrete that submerges the steel cables 11 and the first steel mesh 12 is poured into the forming mold cavity to form an outer wall 1; then, an interlayer is laid on the top surface of the outer wall 1, and a second steel mesh 21 is laid on the top surface of the interlayer, and the concrete is made to submerge the interlayer, the second steel mesh 21 and the steel cage to form an inner wall 2; thereby, the precast concrete structure composed of the inner wall 2 and the outer wall 1 has higher strength.

[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A fully prefabricated assembled concrete structure, characterized by: The invention comprises a plurality of steel cables (11) arranged in parallel with each other, two symmetrically arranged steel cages, a first steel wire mesh (12) laid on the top surface of the steel cables (11) and located between the two steel cages, a sandwich layer arranged above the first steel wire mesh (12), and a second steel wire mesh (21) laid on the top surface of the sandwich layer. Concrete is poured into a forming mold cavity to submerge the steel cables (11) and the first steel wire mesh (12) to form an outer wall (1), and concrete is poured into the forming mold cavity to submerge the sandwich layer, the second steel wire mesh (21), and the steel cages to form an inner wall (2).

2. A fully prefabricated assembled concrete structure according to claim 1, characterized in that: The interlayer comprises a first rigid foam plastic plate (25) and a second rigid foam plastic plate (26) arranged on the top surface of the outer wall (1) and located between two steel cages, wherein a dovetail block (261) is integrally formed on the second rigid foam plastic plate (26), and a dovetail groove (251) is provided on the bottom surface of the first rigid foam plastic plate (25) and is slidably connected to the dovetail block (261).

3. The fully prefabricated assembled concrete structure according to claim 1, characterized in that: A plurality of supporting members for supporting the second steel wire mesh (21) are arranged on the top surface of the interlayer.

4. A fully prefabricated assembled concrete structure according to claim 3, characterized in that: The supporting member comprises a sleeve (22) embedded in the interlayer, a threaded rod (23) threadedly connected to the sleeve (22), and a supporting block (24) arranged at the top end of the threaded rod (23), wherein the top surface of the supporting block (24) supports the second steel mesh (21).

5. The fully prefabricated assembled concrete structure according to claim 4, characterized in that: The top surface of the supporting block (24) is provided with a supporting groove (241) that matches the second steel wire mesh (21).

6. The fully prefabricated assembled concrete structure according to claim 4, characterized in that: The support block (24) is rotatably connected to the threaded rod (23).

7. The fully prefabricated assembled concrete structure according to claim 1, characterized in that: The steel cage comprises a plurality of longitudinally distributed and mutually parallel steel rings (13) and four connecting steel bars (14) respectively fixedly connected to the four inner corners of the steel rings (13). An extension section (131) remains at one end of the steel ring (13) close to the steel cable (11).

8. The fully prefabricated assembled concrete structure according to claim 7, characterized in that: The steel cable (11) and the extension section (131) are offset, and the bottom surface of the connecting steel bar (14) close to the extension section (131) abuts against the top surface of the steel cable (11).

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