Combined laminated slab and fabricated building

By setting up box molds and truss structures between the bottom plate and the top plate, combined with bolt connections, a high-strength connection of the composite slabs was achieved, solving the problem of insufficient connection strength in prefabricated buildings and improving the reliability and strength of the overall structure.

CN223510508UActive Publication Date: 2025-11-04SHANDONG LIYUMEI CONSTR TECH CO LTD
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Patent Information

Application Number
CN202422885308.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-11-04
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

The connection strength between the existing prefabricated box formwork and the reinforced concrete rib beam is low, resulting in insufficient overall structural strength.

Method used

The composite slab design includes a bottom slab, a top slab, a box formwork, and a truss structure, which are fixed by bolts. A box formwork is set between the bottom slab and the top slab, and the first reinforcing bar is exposed on the bottom slab. A truss is set on the top slab, and concrete is poured on site to wrap the reinforcing bars and truss to improve the connection strength.

Benefits of technology

It improves the overall structural connection reliability and strength of prefabricated buildings, meeting the needs of prefabricated production.

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Abstract

The utility model discloses a combined type laminated slab and an assembly type building, the combined type laminated slab comprises a bottom plate, a first reinforcing steel bar is embedded in the bottom plate, and the end part of the first reinforcing steel bar extends out of the bottom plate; a truss is arranged on the upper surface of the top plate; a hollow structure is formed in the box mold; the box mold is fixedly connected between the bottom plate and the top plate, and the top plate is arranged above the bottom plate. Assembly type production is achieved, and the overall structural strength is improved.
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Description

Technical Field

[0001] This application relates to the field of building technology, and in particular to a composite slab and prefabricated building. Background Technology

[0002] With the continuous development of the construction industry, residential buildings, commercial buildings, and other structures are typically constructed using cast-in-place concrete. Generally, a building includes load-bearing components (such as load-bearing beams or walls), the height of which is determined by the building's overall height. Furthermore, depending on the height of different floors, horizontally arranged cast-in-place beams are installed on the load-bearing components to meet the requirements for constructing the roof.

[0003] In existing technologies, cast-in-place beams are typically constructed by erecting a steel reinforcement frame on-site and casting it using formwork, thus forming both the cast-in-place beam and the integral roof slab structure. To save on concrete usage, the technique of using box formwork for casting has been widely adopted. For example, Chinese Patent Publication No. CN102094481A discloses a prefabricated integral concrete ribbed hollow floor slab, which is constructed on-site using a reinforced concrete composite layer and prefabricated box formwork. After casting, the reinforced concrete composite layer and prefabricated box formwork form an integral structure with the cast-in-place reinforced concrete ribbed beams.

[0004] However, the above-mentioned technical solutions only connect the side walls to the reinforced concrete ribs in prefabricated box formwork, resulting in low connection strength and consequently low overall structural strength. Therefore, how to design a technology that meets the requirements of prefabricated production to improve the overall structural strength is the technical problem this application aims to solve. Summary of the Invention

[0005] The technical problem to be solved by this application is to provide a composite slab and prefabricated building to meet the requirements of prefabricated production and improve the overall structural strength.

[0006] The technical solution provided in this application is a composite laminate, comprising:

[0007] A base plate, wherein a first reinforcing bar is embedded in the base plate, and the end of the first reinforcing bar extends to the outside of the base plate;

[0008] A top plate, the upper surface of which is provided with trusses;

[0009] A box mold, wherein the interior of the box mold forms a hollow structure;

[0010] The box mold is fixedly connected between the bottom plate and the top plate, with the top plate positioned above the bottom plate.

[0011] In one embodiment of this application, a plurality of box molds are arranged side by side between the bottom plate and the top plate.

[0012] In one embodiment of this application, the hollow structure of the box mold is further filled with a lightweight filler.

[0013] In one embodiment of this application, the box mold is fixedly connected between the bottom plate and the top plate by bolts.

[0014] In one embodiment of this application, the upper surface of the base plate is provided with a plurality of first connecting legs, and the first connecting legs are connected to the box mold by bolts;

[0015] The lower surface of the top plate is provided with a plurality of second connecting legs, which are connected to the box mold by bolts.

[0016] In one embodiment of this application, the bottom plate and the top plate are cast into the mold.

[0017] In one embodiment of this application, the first reinforcing bar is fixedly connected to the bottom of the box mold, and the truss is fixedly connected to the top of the box mold;

[0018] The bottom plate is cast into the bottom of the box mold, and the top plate is cast into the top of the box mold.

[0019] One embodiment of this application also provides a prefabricated building, including:

[0020] The load-bearing component is provided with multiple supporting beams;

[0021] The composite slab is located between two adjacent supporting beams;

[0022] The casting layer includes a casting body and multiple second reinforcing bars, the second reinforcing bars being connected to trusses on each of the composite slabs, the casting body being cast into the supporting beams and the composite slabs; the exposed ends of the second reinforcing bars, the trusses of the composite slabs, and the first reinforcing bars are embedded in the casting body.

[0023] In one embodiment of this application, the supporting beam and the casting body are integrally cast.

[0024] Compared with the prior art, the advantages and positive effects of this application are as follows: by setting the box formwork between the bottom plate and the top plate, the bottom plate is provided with the first reinforcing bar, and the end of the first reinforcing bar is exposed outside the bottom plate. Correspondingly, the top plate is provided with a truss to meet the requirements of connecting the second reinforcing bar during the final pouring process of the building. In this way, when the composite slab is used in the construction process of prefabricated buildings, the concrete poured on site will bury both the first reinforcing bar and the truss, thereby enabling the composite slab to be embedded as a whole into the cast-in-place concrete, so as to improve the overall connection reliability and meet the requirements of prefabricated production to improve the overall structural strength. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a structural schematic diagram of an embodiment of the composite laminate of this application;

[0027] Figure 2 for Figure 1 A cross-sectional view of a composite slab.

[0028] Figure 3 for Figure 1 One of the structural diagrams of the midsole plate;

[0029] Figure 4 for Figure 1 One of the structural schematic diagrams of the central top plate;

[0030] Figure 5 for Figure 1 Schematic diagram of the middle box mold;

[0031] Figure 6 for Figure 1 The second structural diagram of the midsole plate;

[0032] Figure 7 for Figure 1 Schematic diagram of the top slab (Part 2);

[0033] Figure 8 This is a structural schematic diagram of an embodiment of the prefabricated building of this application;

[0034] Figure 9 for Figure 8 A magnified view of a portion of region A in the middle.

[0035] Figure label:

[0036] 1. Base plate; 11. First reinforcing bar; 12. First connecting support;

[0037] 2. Top plate; 21. Truss; 22. Second connecting leg;

[0038] 3. Box mold; 31. Hollow structure;

[0039] 4. Load-bearing components; 41. Support beams;

[0040] 5. Cast-in-place layer; 51. Cast-in-place body; 52. Second reinforcing bar. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] like Figures 1-5 As shown, one embodiment of this application provides a composite laminate, comprising:

[0043] A base plate 1, wherein a first reinforcing bar 11 is embedded in the base plate 1, and the end of the first reinforcing bar 11 extends to the outside of the base plate 1;

[0044] Top plate 2, the upper surface of which is provided with truss 21;

[0045] Box mold 3, wherein a hollow structure 31 is formed inside the box mold 3;

[0046] The box mold 3 is fixedly connected between the bottom plate 1 and the top plate 2, with the top plate 2 positioned above the bottom plate 1.

[0047] Specifically, for the composite slab, a box mold 3 is provided between the bottom plate 1 and the top plate 2. The box mold 3 has a hollow structure to reduce the overall weight of the composite slab and improve the overall structural strength of the composite slab.

[0048] Because the composite slab structure has a truss 21 at the top and an exposed first steel bar 11 at the bottom, the concrete poured on site can wrap around the truss 21 and the exposed first steel bar 11 during the on-site construction process, thereby allowing the truss 21 and the exposed first steel bar 11 to be directly embedded in the on-site concrete, thus improving the structural connection strength of the overall building.

[0049] In one embodiment, multiple box molds 3 arranged side-by-side can be provided between the bottom plate 1 and the top plate 2. This can meet the processing requirements of composite plates with different structural dimensions and is more conducive to improving the versatility of the box molds 3.

[0050] For example, multiple box molds can be assembled using conventional fixing methods such as adhesive connection, slot connection, and bolt connection, without any restrictions.

[0051] In another embodiment, the hollow structure 31 of the box mold 3 is also filled with a lightweight filler.

[0052] Specifically, the hollow structure 31 formed by the box mold 3 can be filled with lightweight fillers as needed, such as pearl cotton, expanded vermiculite, or polystyrene particle foam.

[0053] In one embodiment, in order to improve the reliability of the connection between the box mold 3 and the bottom plate 1 and the top plate 2, the box mold 3 is fixedly connected between the bottom plate 1 and the top plate 2 by bolts.

[0054] Specifically, for the bottom plate 1 and the top plate 2, after processing and forming, when assembling with the box mold 3, the box mold 3 can be fixedly connected between the bottom plate 1 and the top plate 2 by bolts to ensure that the box mold 3 has sufficient structural connection strength with the top plate 2 and the bottom plate 1.

[0055] For example: Figure 6 and Figure 7 As shown, the upper surface of the base plate 1 is provided with a plurality of first connecting legs 12, which are connected to the box mold 3 by bolts; the lower surface of the top plate 2 is provided with a plurality of second connecting legs 22, which are connected to the box mold 3 by bolts.

[0056] In another embodiment, the bottom plate 1 and the top plate 2 are cast into the mold 3.

[0057] Specifically, the bottom plate 1 and the top plate 2 can be manufactured by concrete pouring, that is, the bottom plate 1 and the top plate 2 are integrally cast on the box mold 3.

[0058] Therefore, for the first reinforcing bar 11 and the truss 21, the first reinforcing bar 11 is fixedly connected to the bottom of the box mold 3, and the truss 21 is fixedly connected to the top of the box mold 3; the bottom plate 1 is cast into the bottom of the box mold 3, and the top plate 2 is cast into the top of the box mold 3.

[0059] In the actual processing, the first steel bar 11 can penetrate the box mold 3, while the truss 21 can be tied to the box mold 3. Then, the template is installed at the corresponding position of the box mold 3, and the hollow structure 31 can be filled with lightweight filler. Then, concrete is poured on the box mold 3 to form the bottom plate 1 and the top plate 2.

[0060] Another embodiment of this application also provides a prefabricated building, such as Figures 8-9 As shown, prefabricated buildings include:

[0061] Load-bearing component 4, on which multiple supporting crossbeams 41 are provided;

[0062] A composite slab, wherein the composite slab adopts the above-mentioned composite slab; the composite slab is located between two adjacent supporting beams 41.

[0063] The casting layer 5 includes a casting body 51 and multiple second reinforcing bars 52. The second reinforcing bars 52 are connected to the trusses 21 on each of the composite slabs. The casting body 51 is cast into the supporting beam 41 and the composite slabs. The exposed ends of the second reinforcing bars 52, the trusses 21 of the composite slabs, and the first reinforcing bars 11 are embedded in the casting body.

[0064] Specifically, the load-bearing component 4, as the main supporting component of the building, will be built on the foundation. Multiple supporting beams 41 are installed on the load-bearing component. The multiple supporting beams 41 can be arranged side by side or cross each other.

[0065] The composite slab is placed between two adjacent supporting beams 41 to fill the area between them. After the composite slab is installed in the area between the two supporting beams 41, the second reinforcing bar 52 can be tied to the truss 21 of the multiple composite slabs as needed. Then, concrete can be poured in place to form a cast-in-place structure. The concrete forming the cast-in-place structure will cover the top of the supporting beams 41 and the composite slab, and will also cover the bottom of the composite slab to enclose the exposed first reinforcing bar 11. This effectively connects the composite slab and supporting beams 41 into a single structure, thereby improving reliability.

[0066] Specifically, the supporting beam 41 can be a cast-in-place structure, meaning it is integrally cast with the main body. During on-site construction, the steel reinforcement frame of the supporting beam 41 is tied together, formwork is erected, the composite slab is installed, and the second reinforcing bar 52 is tied in place. Then, on-site casting is performed to form the integrally cast supporting beam 41 and the main body. Similarly, load-bearing components 4 can also be cast in place, such as concrete columns or concrete load-bearing walls, which are typical load-bearing structures in conventional buildings.

[0067] Compared with the prior art, the advantages and positive effects of this application are as follows: by setting the box formwork between the bottom plate and the top plate, the bottom plate is provided with the first reinforcing bar, and the end of the first reinforcing bar is exposed outside the bottom plate. Correspondingly, the top plate is provided with a truss to meet the requirements of connecting the second reinforcing bar during the final pouring process of the building. In this way, when the composite slab is used in the construction process of prefabricated buildings, the concrete poured on site will bury both the first reinforcing bar and the truss, thereby enabling the composite slab to be embedded as a whole into the cast-in-place concrete, so as to improve the overall connection reliability and meet the requirements of prefabricated production to improve the overall structural strength.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A composite laminated plate, characterized in that, include: A base plate, wherein a first reinforcing bar is embedded in the base plate, and the end of the first reinforcing bar extends to the outside of the base plate; A top plate, the upper surface of which is provided with trusses; A box mold, wherein the interior of the box mold forms a hollow structure; The box mold is fixedly connected between the bottom plate and the top plate, with the top plate positioned above the bottom plate.

2. The composite laminated plate according to claim 1, characterized in that, Multiple box molds are arranged side by side between the bottom plate and the top plate.

3. The composite laminated plate according to claim 1, characterized in that, The hollow structure of the box mold is also filled with a lightweight filler.

4. The composite laminate according to any one of claims 1-3, characterized in that, The box mold is fixedly connected between the bottom plate and the top plate by bolts.

5. The composite laminated plate according to claim 4, characterized in that, The upper surface of the base plate is provided with a plurality of first connecting legs, which are connected to the box mold by bolts; The lower surface of the top plate is provided with a plurality of second connecting legs, which are connected to the box mold by bolts.

6. The composite laminate according to any one of claims 1-3, characterized in that, The bottom plate and the top plate are cast into the mold.

7. The composite laminated plate according to claim 6, characterized in that, The first reinforcing bar is fixedly connected to the bottom of the box formwork, and the truss is fixedly connected to the top of the box formwork; The bottom plate is cast into the bottom of the box mold, and the top plate is cast into the top of the box mold.

8. A prefabricated building, characterized in that, include: The load-bearing component has multiple supporting beams. A composite laminated plate, wherein the composite laminated plate is the composite laminated plate as described in any one of claims 1-7; The composite slab is located between two adjacent supporting beams; The casting layer includes a casting body and multiple second reinforcing bars, the second reinforcing bars being connected to trusses on each of the composite slabs, the casting body being cast into the supporting beams and the composite slabs; the exposed ends of the second reinforcing bars, the trusses of the composite slabs, and the first reinforcing bars are embedded in the casting body.

9. The prefabricated building according to claim 8, characterized in that, The supporting beam is integrally cast with the casting body.

Citation Information

Patent Citations

  • Assembled monolithic concrete ribbed hollow floor slab

    CN102094481A