Prefabricated laminated slab structure

Abstract

The utility model relates to the technical field of laminated slabs, and discloses a prefabricated laminated slab structure which comprises a slab body, mesh steel bars are arranged in the slab body, and truss steel bars with one ends penetrating to the outer side of the slab body are fixedly installed in the slab body. By arranging the mesh reinforcing steel bars and the truss reinforcing steel bars and reasonably arranging the staggered intervals, the overall performance is not changed while part of the reinforcing steel bars are reduced, the processing time of the laminated slab is shortened, the balance of quality, efficiency and cost is achieved, and meanwhile the connecting angle of the web member reinforcing steel bars is adjusted, so that the overall performance of the laminated slab is improved. Supporting points during installation of a large number of truss steel bars can be reduced, the construction efficiency can be improved, meanwhile, the diameter and the overall height of the steel bars are adjusted and used according to the load-bearing requirement, the overall quality is guaranteed, meanwhile, needed work during production of the laminated slab is reduced as much as possible, and dual optimization of the structural performance and the construction efficiency is achieved.

Description

Technical Field

[0001] This utility model relates to the field of composite slab technology, specifically a prefabricated composite slab structure. Background Technology

[0002] Precast composite slab structures are assembled monolithic floor slabs that combine precast concrete thin slabs and cast-in-place concrete layers. This structural form exhibits a variety of advantages in building engineering, including good integrity, continuity, seismic performance, as well as fast construction speed and savings in formwork and labor. Precast composite slab structures are suitable for high-rise buildings, large-span buildings, and places with high requirements for overall rigidity, such as stations, libraries, warehouses, underground parking lots, schools, and hospitals.

[0003] Currently, traditional composite slab structures have certain drawbacks in construction and production. After the composite slabs are transported to the construction site, they require secondary reinforcement binding, which is a cumbersome process that affects construction efficiency. The high steel content of traditional truss composite slabs leads to redundant steel content, increasing transportation and hoisting costs. The construction industry has an urgent need for optimized steel reinforcement configuration, including cost reduction and quality improvement. Due to the structural characteristics of traditional composite slabs, it is difficult to run pipelines, increasing construction complexity and costs. In addition, after the composite slabs are installed, the wiring needs to be laid before pouring cement. Because traditional composite slabs lack cable restraint structures, the cement flow during pouring can easily knock the laid cables to other locations, affecting cable layout, causing abnormal building wiring, affecting subsequent construction, and reducing its practicality. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of inconvenient production and transportation, low hoisting efficiency, and low construction efficiency faced by existing composite slab technology, and to propose a prefabricated composite slab structure.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A prefabricated composite slab structure includes a slab body, wherein a mesh of reinforcing steel is provided inside the slab body, and a truss steel bar with one end extending to the outside is fixedly installed inside the slab body.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Preferably, the mesh reinforcement includes transverse reinforcement, and transverse reinforcement with both ends extending to the outside is fixedly installed inside the plate, and longitudinal reinforcement with both ends extending to the outside of the plate is fixedly installed on the top of the transverse reinforcement.

[0009] Preferably, the truss reinforcement includes bottom chord reinforcement. The bottom chord reinforcement is symmetrically installed inside the plate, parallel to the transverse reinforcement. Web reinforcement is fixedly connected to both bottom chord reinforcements. One end of each web reinforcement extends through the plate and connects to the top chord reinforcement.

[0010] Preferably, the spacing between the transverse and longitudinal reinforcing bars is an integer multiple of 50mm, the distance from the edge to the edge of the plate is ≤100mm, and the spacing between the truss reinforcing bars and the mesh reinforcing bars is ≤200mm, forming a cooperative force-bearing system.

[0011] Preferably, the angle of the connection of the web reinforcement bars of the truss is set at 90 degrees, the diameter of the web reinforcement bars is ≥4mm, the diameter of the top chord reinforcement bars is ≥8mm, and the overall height of the truss reinforcement bars is 60-420mm, which can be adjusted according to the load-bearing requirements.

[0012] Preferably, the pipeline assembly includes a conduit, and a conduit with both ends penetrating the plate is fixedly installed inside the plate. A partition plate is fixedly installed inside the conduit, dividing the inside of the conduit into four parts. Each part is fixedly equipped with a cable outlet, and each of the four cable outlets is fixedly connected with a gland. Each gland is provided with a matching sealing cap.

[0013] Preferably, the guide assembly includes a rotating seat, which is fixedly installed inside the plate. A mounting bracket is rotatably installed on the top of the rotating seat, and a telescopic cylinder is fixedly installed on the mounting bracket. A wire groove is provided inside the telescopic cylinder.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0015] This invention, by setting up mesh reinforcement and truss reinforcement and rationally setting the staggered spacing, can reduce some of the reinforcement while maintaining the overall performance. It also reduces the processing time of the composite slab, achieving a balance between quality, efficiency, and cost. Furthermore, by adjusting the connection angle of the web reinforcement, it can reduce the number of support points for a large number of truss reinforcements during installation, improving construction efficiency. At the same time, by adjusting the diameter and overall height of the reinforcement according to the load-bearing requirements, it can minimize the work required during the production of the composite slab while ensuring overall quality, thus achieving a dual optimization of structural performance and construction efficiency.

[0016] This utility model, by setting up pipeline components and guide components, uses a partition plate to separate the internal space of the conduit, preventing different cables from getting tangled together. The cable outlets in different directions can guide the cables to different positions as needed, avoiding cable accumulation and entanglement. At the same time, the gland can fix the cable and prevent dust and other debris from entering. After the telescopic cylinder is extended, the cable passes through its internal wire groove, guiding the line and protecting the position of the line during pouring, preventing the cable position from shifting, ensuring the laying effect, and improving the practicality of the composite slab. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a front view sectional view of the present invention;

[0019] Figure 3 This is a top view of the structural cross-section of this utility model;

[0020] Figure 4 This is a cross-sectional view of the left side of the present invention.

[0021] Figure 5 This is a partial structural cross-sectional view of the pipeline assembly of this utility model.

[0022] In the diagram: 1. Plate; 2. Mesh reinforcement; 21. Transverse reinforcement; 22. Longitudinal reinforcement; 3. Truss reinforcement; 31. Bottom chord reinforcement; 32. Web reinforcement; 33. Top chord reinforcement; 4. Pipeline assembly; 41. Conduit; 42. Divider plate; 43. Outlet; 44. Gland head; 45. Sealing cap; 5. Guide assembly; 51. Rotating seat; 52. Mounting bracket; 53. Telescopic cylinder; 54. Wire channel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the embodiments, by Figure 1-4 A prefabricated composite slab structure is provided, including a slab body 1, with a mesh steel bar 2 inside the slab body 1, and a truss steel bar 3 with one end extending to the outside of the slab body 1 is fixedly installed inside the slab body 1.

[0025] Reference Figure 1-4The mesh reinforcement 2 includes transverse reinforcement 21. The plate 1 is fixedly installed with transverse reinforcement 21 that extends to the outside of the plate at both ends. The top of the transverse reinforcement 21 is fixedly installed with longitudinal reinforcement 22 that extends to the outside of the plate at both ends.

[0026] With the above structural setup, the transverse steel bars 21 and longitudinal steel bars 22 are arranged vertically at a certain interval, and all intersections are welded to form a grid structure. The grid shape can optimize the load distribution, improve seismic performance, and enhance the overall structural integrity.

[0027] Reference Figure 1-4 Among them, the truss reinforcement 3 includes the lower chord reinforcement 31. The lower chord reinforcement 31 is symmetrically installed inside the plate 1, parallel to the transverse reinforcement 21. The two lower chord reinforcement 31 are fixedly connected to the web reinforcement 32. The web reinforcement 32 on both sides passes through and extends to the outside of the plate 1 and is connected to the upper chord reinforcement 33.

[0028] By using the above structural design, the lower chord steel bar 31, web steel bar 32, and upper chord steel bar 33 are connected by resistance spot welding to form a triangular stable structure, which enhances the structural stiffness, optimizes the load distribution, reduces deflection deformation, increases the bending stiffness of the precast composite slab by 30%-50%, and reduces the risk of cracking during transportation.

[0029] Reference Figure 1-4 The spacing between the transverse steel bars 21 and the longitudinal steel bars 22 is an integer multiple of 50mm, the distance from the edge to the edge of the plate is ≤100mm, and the spacing between the truss steel bars 3 and the mesh steel bars 2 is ≤200mm, forming a cooperative force-bearing system.

[0030] Through the above structural design, the horizontal reinforcing bars 21 and the longitudinal reinforcing bars 22, by reasonably setting the staggered spacing, can reduce some of the reinforcing bars while maintaining the overall performance, and at the same time reduce the processing time of the composite slab, thus achieving a balance between quality, efficiency and cost.

[0031] Reference Figure 1-4 Among them, the angle of the connection of the web bar 32 of the truss bar 3 is set at 90 degrees, the diameter of the web bar 32 is ≥4mm, the diameter of the top chord bar 33 is ≥8mm, and the overall height of the truss bar 3 is 60-420mm.

[0032] By setting the connection angle of the web reinforcement 32 to 90 degrees, the number of support points can be reduced by 50%, improving construction efficiency. At the same time, the diameter and overall height of the reinforcement can be adjusted according to the load-bearing requirements. This ensures overall quality while minimizing the work required for composite slab production, achieving a dual optimization of structural performance and construction efficiency.

[0033] Reference Figure 1-4The pipeline assembly 4 includes a conduit 41. The conduit 41, which has both ends penetrating the plate 1, is fixedly installed inside the plate 1. A partition plate 42 is fixedly installed inside the conduit 41, which divides the inside of the conduit 41 into four parts. Each part is fixedly installed with an outlet 43. Each of the four outlets 43 is fixedly connected with a gland 44. A sealing cap 45 that matches the gland 44 is provided on the gland 44.

[0034] With the above structural design, the conduit 41 can open a cable routing channel inside the plate 1, the partition plate 42 separates the internal space of the conduit 41 to prevent different cables from getting tangled together, the cable outlets 43 in different directions can guide the cables to different positions as needed to prevent the cables from piling up and getting tangled, and the gland 44 can fix the cable while preventing dust and other debris from entering. The sealing cover 45 is used to seal the opening on the gland 44 before the cable is inserted to prevent debris from entering.

[0035] Reference Figure 1-4 The guide component 5 includes a rotating seat 51. The rotating seat 51 is fixedly installed inside the plate 1. The top of the rotating seat 51 is rotatably mounted on a mounting bracket 52. A telescopic cylinder 53 is fixedly installed on the mounting bracket 52. A wire groove 54 is opened inside the telescopic cylinder 53.

[0036] With the above structural setup, when the cable passes through the pipeline assembly 4, the telescopic cylinder 53 is extended and the cable passes through the conductor groove 54 inside it, protecting the position of the cable line during pouring, preventing the cable position from shifting, and ensuring the laying effect.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] 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, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated composite slab structure, characterized in that: The plate (1) includes a mesh steel bar (2) inside the plate (1), a truss steel bar (3) with one end extending to the outside of the plate (1) is fixedly installed inside the plate (1), a pipeline assembly (4) with one end extending through the top of the plate (1) is fixedly installed inside the plate (1), and guide assemblies (5) are fixedly installed on both the left and right sides of the plate (1).

2. The prefabricated composite slab structure according to claim 1, characterized in that: The mesh reinforcement (2) includes transverse reinforcement (21). The plate (1) is fixedly installed with transverse reinforcement (21) that extends to the outside of the plate at both ends. The top of the transverse reinforcement (21) is fixedly installed with longitudinal reinforcement (22) that extends to the outside of the plate (1) at both ends.

3. The prefabricated composite slab structure according to claim 1, characterized in that: The truss reinforcement (3) includes a lower chord reinforcement (31). The lower chord reinforcement (31) is symmetrically installed inside the plate (1) alongside the transverse reinforcement (21). Both lower chord reinforcements (31) are fixedly connected to web reinforcements (32). Both web reinforcements (32) on both sides pass through and extend to the outside of the plate (1) and are connected to the upper chord reinforcement (33).

4. A prefabricated composite slab structure according to claim 2, characterized in that: The spacing between the transverse reinforcing bars (21) and the longitudinal reinforcing bars (22) is an integer multiple of 50mm, the distance from the edge to the edge of the plate is ≤100mm, and the spacing between the truss reinforcing bars (3) and the mesh reinforcing bars (2) is ≤200mm, forming a cooperative force-bearing system.

5. A prefabricated composite slab structure according to claim 3, characterized in that: The angle of the connection of the upper web bar (32) of the truss bar (3) is set at 90 degrees. The diameter of the web bar (32) is ≥4mm, the diameter of the upper chord bar (33) is ≥8mm, and the overall height of the truss bar (3) is 60-420mm, which is adjusted according to the load-bearing requirements.

6. A prefabricated composite slab structure according to claim 1, characterized in that: The pipeline assembly (4) includes a conduit (41). The conduit (41) with both ends penetrating the plate (1) is fixedly installed inside the plate (1). A partition plate (42) is fixedly installed inside the conduit (41). The partition plate (42) divides the inside of the conduit (41) into four parts. Each part is fixedly installed with an outlet (43). Each of the four outlets (43) is fixedly connected with a gland (44). A sealing cap (45) is provided on the gland (44) to match it.

7. A prefabricated composite slab structure according to claim 1, characterized in that: The guide assembly (5) includes a rotating seat (51). The rotating seat (51) is fixedly installed inside the plate (1). A mounting bracket (52) is rotatably installed on the top of the rotating seat (51). A telescopic cylinder (53) is fixedly installed on the mounting bracket (52). A wire groove (54) is opened inside the telescopic cylinder (53).

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