High-strength building fabricated floor
By employing support frames and steel cage structures in prefabricated floor slabs, the contact area and connection strength between the steel cage and concrete are enhanced, solving the problem of easy deformation of prefabricated floor slabs under pressure and achieving a high-strength and stable connection effect.
Patent Information
- Application Number
- CN202422887236.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing prefabricated floor slabs are prone to deformation under high pressure, have low strength, are easily damaged after long-term use, and the connection strength between floor slabs is also low.
A support frame and prefabricated skeleton are used, and multiple steel bars are tied together in a crisscross pattern to form a steel cage. Positioning components and connecting components, including rectangular frames, tie plates, insert plates and bolts, are set on the outside of the steel cage to enhance the contact area and connection strength between the steel cage and the concrete.
It improves the overall strength and connection strength of prefabricated floor slabs, enhances the stability and durability of the floor slabs, and avoids damage caused by pressure deformation.
Smart Images

Figure CN223497409U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building construction technology, and in particular relates to a high-strength prefabricated building floor slab. Background Technology
[0002] Construction is a production activity carried out by people using various building materials and machinery according to specific design blueprints within a certain space and time to build various types of architectural products. It includes the entire production process from construction preparation and groundbreaking to project completion and acceptance. This process involves construction preparation, construction organization design and management, earthwork engineering, blasting engineering, foundation engineering, reinforcement engineering, formwork engineering, scaffolding engineering, concrete engineering, prestressed concrete engineering, masonry engineering, steel structure engineering, timber structure engineering, and structural installation engineering, among other tasks.
[0003] Prefabricated buildings refer to buildings where a large amount of on-site work in traditional construction methods is transferred to factories. Building components and accessories, such as floor slabs, wall panels, stairs, and balconies, are prefabricated in factories, transported to the construction site, and assembled on-site using reliable connection methods.
[0004] Floor slabs are a commonly used component in construction. Existing prefabricated floor slabs still adopt the traditional method, which simply uses a few steel bars to form a mesh-like steel skeleton and then pours concrete on top. The toughness of this type of prefabricated floor slab relies on its own steel skeleton. However, although this steel skeleton has a large coverage area, it is not three-dimensional enough and will deform under great pressure, resulting in low strength of the floor slabs and easy damage after long-term use. Moreover, the connection strength between floor slabs is also low. Utility Model Content
[0005] In view of this, the present invention aims to propose a high-strength prefabricated floor slab to solve the problems that existing prefabricated floor slabs deform under high pressure, resulting in low wall panel strength, easy damage after long-term use, and low connection strength between floor slabs.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-strength prefabricated floor slab, comprising a floor slab body, a support frame provided at the bottom of the floor slab body, a prefabricated skeleton provided within the floor slab body, the prefabricated skeleton comprising a steel cage formed by multiple steel bar rings interlaced and tied together, and a positioning component provided on the outside of the steel cage.
[0007] Furthermore, the positioning component includes a rectangular frame formed by four side plates, with connecting components provided between adjacent rectangular frames, and through holes for the steel reinforcement ring to pass through on the side plates.
[0008] Furthermore, the steel reinforcement ring includes two V-shaped portions and two steel rods, with the V-shaped portions located on the outside of the rectangular frame.
[0009] Furthermore, an upper extension plate is provided on the outer top of the rectangular frame, and a lower extension plate is provided on the outer bottom of the rectangular frame.
[0010] Furthermore, the connecting assembly includes a pull plate mounted on the outside of the rectangular frame, the pull plate passing through multiple V-shaped sections located on the same side of the rectangular frame, and a tightening assembly for connecting the two pull plates is provided between two opposing rectangular frames.
[0011] Furthermore, the tightening assembly includes two vertically arranged insert plates mounted on the support frame, and the upper extension plate is provided with a movable groove, through which the insert plates pass and move above the upper extension plate.
[0012] Furthermore, bolts for fixing two opposing insert plates are installed above the upper extension plate, and the upper middle part of the two insert plates are respectively provided with insertion holes, through which the bolts pass.
[0013] Furthermore, the insert plate has an arched portion on the side facing the opposite rectangular frame.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This utility model provides a high-strength prefabricated floor slab. By setting up a support frame and a prefabricated skeleton, the prefabricated skeleton is composed of a steel cage made of multiple steel rings tied together. The contact position of adjacent steel rings is tied with steel wire. The steel rings in different directions are arranged perpendicular to each other, which can increase the contact area between the steel cage and the concrete and improve the strength of the floor slab.
[0016] 2. By setting up a support frame and a prefabricated skeleton, the prefabricated skeleton is composed of a steel cage made up of multiple steel rings tied together. The contact points of adjacent steel rings are tied with steel wires, and the steel rings in different directions are set perpendicular to each other, which can increase the contact area between the steel cage and the concrete and improve the strength of the floor slab. Attached Figure Description
[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0018] Figure 1 This is a schematic diagram of the overall structure of a high-strength prefabricated floor slab for buildings according to this utility model;
[0019] Figure 2This is a left-side view of a high-strength prefabricated floor slab as described in this utility model.
[0020] Figure 3 for Figure 2 A three-dimensional cross-sectional view of point AA in the middle;
[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;
[0022] Figure 5 for Figure 2 A three-dimensional cross-sectional view of section BB in the middle;
[0023] Figure 6 for Figure 5 Enlarged view of point B in the middle;
[0024] Figure 7 This is a structural schematic diagram of a steel reinforcement cage in a high-strength prefabricated floor slab of this utility model.
[0025] Figure 8 This is a schematic diagram of the steel reinforcement ring in a high-strength prefabricated floor slab of this utility model.
[0026] 1-Floor slab body, 2-Support frame, 3-Reinforcing bar ring, 4-Reinforcing bar cage, 5-Side plate, 6-Rectangular frame, 7-Through hole, 8-V-shaped part, 9-Reinforcing bar rod, 10-Upper extension plate, 11-Lower extension plate, 12-Pull plate, 13-Insertion plate, 14-Modular groove, 15-Bolt, 16-Insertion hole, 17-Arch-shaped part, 18-Mounting hole. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.
[0028] See Figure 1-8This embodiment describes a high-strength prefabricated floor slab, comprising a floor slab body 1, a support frame 2 at the bottom of the floor slab body 1, and a prefabricated skeleton inside the floor slab body 1. The prefabricated skeleton includes a reinforcing cage 4 formed by multiple reinforcing bar rings 3 interlaced and tied together. A positioning component is provided on the outside of the reinforcing cage 4. In this embodiment, by setting up the floor slab body 1, which is formed by prefabricated skeleton and concrete pouring, and the support frame 2 located at the bottom of the floor slab body 1, the reinforcing bar rings 3 are formed by bending a single reinforcing bar, and multiple reinforcing bar rings 3 are tied together to form the reinforcing cage 4. The connection of the multiple reinforcing bar rings 3 is made by binding with steel wire. The positioning component can position the multiple reinforcing bar rings 3, so as to keep the structure of the reinforcing cage 4 stable and improve the strength of the floor slab.
[0029] In this embodiment, the positioning component includes a rectangular frame 6 formed by four side plates 5. A connecting component is provided between adjacent rectangular frames 6. The side plates 5 are provided with through holes 7 for the steel bar rings 3 to pass through. The rectangular frame 6 is formed by welding four side plates 5. The through holes 7 are provided on the side plates 5. The steel bar rings 3 can pass through the through holes 7. The steel bars are bent when passing through the through holes 7. Each steel bar ring 3 is fixed by four through holes 7, thereby improving the strength of the steel cage 4.
[0030] In this embodiment, the reinforcing ring 3 includes two V-shaped portions 8 and two reinforcing bars 9. The V-shaped portions 8 are located on the outside of the rectangular frame 6. The reinforcing ring 3 is composed of two V-shaped portions 8 and two reinforcing bars 9. The two V-shaped portions 8 and the two reinforcing bars 9 are formed by bending the same reinforcing bar. The reinforcing bars 9 can be easily tied together with other reinforcing rings 3. The V-shaped portions 8 are located on the outside of the rectangular frame 6, which facilitates the connection between adjacent floor slab bodies 1.
[0031] In this embodiment, an upper extension plate 10 is provided on the outer top of the rectangular frame 6, and a lower extension plate 11 is provided on the outer bottom of the rectangular frame 6. By providing the upper extension plate 10 and the lower extension plate 11, the upper extension plate 10 is welded to the outer top of the rectangular frame 6, and the lower extension plate 11 is welded to the outer bottom of the rectangular frame 6, which facilitates the connection between adjacent floor slab bodies 1.
[0032] In this embodiment, the connecting assembly includes a pull plate 12 installed on the outside of the rectangular frame 6. The pull plate 12 passes through multiple V-shaped portions 8 located on the same side of the rectangular frame 6. A tightening assembly for connecting the two pull plates 12 is provided between two opposing rectangular frames 6. By setting the pull plate 12 and having it pass through multiple V-shaped portions 8 on the same side, the two floor slab bodies 1 can be tightened and fixed by tightening the two pull plates 12, thereby improving the strength of the floor slab body 1.
[0033] In this embodiment, the tightening assembly includes two vertically arranged insert plates 13 mounted on the support frame 2. The upper extension plate 10 is provided with a movable groove 14. The insert plates 13 pass through the movable groove 14 and move above the upper extension plate 10. By setting the tightening assembly, the bottom end of the insert plate 13 is fixed to the support frame 2. The insert plate 13 is made of a thick steel plate with high toughness. The movable groove 14 is opened on the upper extension plate 10. The middle and upper part of the insert plate 13 passes through the movable groove 14 and extends above the movable groove 14. Tightening the top of the two insert plates 13 can bring the two pull plates 12 closer to each other, which facilitates the connection of adjacent floor slab bodies 1. More specifically, the support frame 2 is equipped with mounting holes 18 for fixing the insert plates 13. There are multiple mounting holes 18 to facilitate the installation of the insert plates 13.
[0034] In this embodiment, bolts 15 for fixing two opposing insert plates 13 are installed above the upper extension plate 10. Insertion holes 16 are respectively opened in the upper middle part of the two insert plates 13. The bolts 15 pass through the two insertion holes 16. By setting the bolts 15, the insertion holes 16 are opened in the upper middle part of the insert plates 13 and are located above the upper extension plate 10. The distance between the two insert plates 13 can be adjusted by the bolts 15, which can deform the two insert plates 13 and improve the connection strength between adjacent rectangular frames 6.
[0035] In this embodiment, the insert plate 13 is provided with an arched part 17 on the side facing the rectangular frame 6. By providing the arched part 17, which is located on one side of the insert plate 13, the toughness of the insert plate 13 can be improved, the insert plate 13 can be prevented from being deformed by large tensile force, the connection between adjacent floor slab bodies 1 can be facilitated, and the strength of the floor slab body 1 can be improved.
[0036] The working principle of this embodiment is as follows:
[0037] In use, firstly, different side plates 5 are selected according to the required size of the prefabricated floor slab. Multiple side plates 5 are welded into a rectangular frame 6. Then, multiple steel bars are sequentially passed through the through holes 7 on the rectangular frame 6 and bent into steel rings 3 with V-shaped parts 8 and steel bar rods 9. Finally, steel wire is used to tie the steel rings 3, so that multiple steel rings 3 are tied into a steel cage 4. Then, concrete is poured into the inside of the rectangular frame 6 through a mold, so that the rectangular frame 6 is cast into the shape of a floor slab. During the installation process, first, the support frame 2 is laid, and the insert plate 1 is inserted. Insert the plate 13 into the corresponding mounting hole 18, then place the floor slab body 1 onto the support frame 2, and align the insert plate 13 with the movable groove 14 on the upper extension plate 10. Then place the pull plate 12 inside the multiple V-shaped parts 8 on the same side, so that the two opposite pull plates 12 are sandwiched between the four insert plates 13. After placement, tighten the top of the two insert plates 13 with bolts 15. During the tightening process, the insert plate 13 will deform towards the pull plate 12, increasing the stress between the pull plate 12 and the reinforcing cage 4, and improving the strength of the floor slab connection.
[0038] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.
Claims
1. A high-strength prefabricated floor slab for buildings, characterized in that: It includes a floor slab body (1), a support frame (2) is provided at the bottom of the floor slab body (1), an assembled frame is provided inside the floor slab body (1), the assembled frame includes a steel cage (4) formed by multiple steel bar rings (3) tied together in a crisscross pattern, and a positioning component is provided on the outside of the steel cage (4).
2. The high-strength prefabricated floor slab according to claim 1, characterized in that: The positioning component includes a rectangular frame (6) formed by four side plates (5), and a connecting component is provided between adjacent rectangular frames (6). The side plates (5) are provided with through holes (7) for the steel ring (3) to pass through.
3. A high-strength prefabricated floor slab according to claim 2, characterized in that: The steel ring (3) includes two V-shaped portions (8) and two steel rods (9), with the V-shaped portions (8) located on the outside of the rectangular frame (6).
4. A high-strength prefabricated floor slab according to claim 3, characterized in that: The rectangular frame (6) has an upper extension plate (10) on its top outer side and a lower extension plate (11) on its bottom outer side.
5. A high-strength prefabricated floor slab according to claim 4, characterized in that: The connecting assembly includes a pull plate (12) installed on the outside of the rectangular frame (6), the pull plate (12) passing through a plurality of V-shaped portions (8) located on the same side of the rectangular frame (6), and a tightening assembly for connecting the two pull plates (12) is provided between two opposite rectangular frames (6).
6. A high-strength prefabricated floor slab according to claim 5, characterized in that: The tightening assembly includes two vertically arranged insert plates (13) mounted on the support frame (2). The upper extension plate (10) is provided with a movable groove (14). The insert plates (13) pass through the movable groove (14) and move above the upper extension plate (10).
7. A high-strength prefabricated floor slab according to claim 6, characterized in that: Bolts (15) for fixing two opposing insert plates (13) are installed on the upper extension plate (10). Insert holes (16) are respectively provided in the upper middle part of the two insert plates (13), and the bolts (15) pass through the two insert holes (16).
8. A high-strength prefabricated floor slab according to claim 6, characterized in that: The insert plate (13) has an arched part (17) on the side facing the opposite rectangular frame (6).