A prefabricated steel structure floor deck

Abstract

This application relates to a prefabricated steel structure floor deck, belonging to the field of steel structure technology. It includes a profiled steel sheet, with positioning portions on both sides of the profiled steel sheet in the width direction. Adjacent profiled steel sheets are fitted together through the positioning portions. Each of the positioning portions on both sides has a positioning hole and a bottom support component that interlocks with the positioning holes of the adjacent profiled steel sheet, forming a limiting fit. The bottom support component forms a supporting abutment fit with the bottom of the adjacent profiled steel sheet. This application has the effect of preventing sagging at the joints of the profiled steel sheets.

Description

Technical Field

[0001] This application relates to the field of steel structure technology, and in particular to a prefabricated steel structure floor deck. Background Technology

[0002] Floor decking is made of galvanized steel sheet through roll forming and cold bending. It serves as a permanent formwork for concrete floor slabs, working together with concrete to form a composite floor slab. As a key component in modern building construction, floor decking is widely used in floor support structures. Its prefabricated components enable rapid assembly, significantly improving construction efficiency and effectively reducing costs. In recent years, with the continuous growth in the construction industry's demand for efficient and modular construction, prefabricated floor decking has gradually become an important research direction in the construction field. In existing technologies, the industry typically uses the following methods to connect and fix floor decking: first, connecting profiled steel sheets to steel structural beams by welding, and then welding reinforcing steel frames onto the profiled steel sheets; second, using bolts and nuts for connection, which allows for detachment; and third, designing specific local lateral snap-fit ​​connection structures to achieve rapid assembly between floor decking sheets through snap-fit ​​components.

[0003] However, in actual construction, after adjacent profiled steel sheets are spliced, the splice joint often lacks effective reinforcement measures. When concrete is poured, due to the load, the area below the splice is prone to deflection, thus affecting the overall flatness and structural stability of the floor slab. Therefore, in order to solve the problem of deflection after splicing profiled steel sheets, this application proposes a prefabricated steel structure floor deck. Utility Model Content

[0004] To address the issue of sagging that easily occurs after the profiled steel sheets are spliced, this application provides a prefabricated steel structure floor deck.

[0005] This application provides a prefabricated steel structure floor deck, which adopts the following technical solution:

[0006] A prefabricated steel structure floor deck includes a profiled steel sheet. Positioning parts are provided on both sides of the profiled steel sheet in the width direction. Adjacent profiled steel sheets are fitted together by the positioning parts. The positioning parts on both sides are provided with positioning holes and bottom support components that are inserted and limited to the positioning holes of adjacent profiled steel sheets. The bottom support components are supported and abutted against the bottom of adjacent profiled steel sheets.

[0007] By adopting the above technical solution, the positioning parts set on both sides of the profiled steel sheet can realize the interlocking fit between adjacent profiled steel sheets, ensuring precise alignment at the splice. The positioning hole forms an insertion limit fit with the bottom support component of the adjacent profiled steel sheet, and the bottom support component forms a support abutment fit with the bottom of the adjacent profiled steel sheet. This not only improves the assembly efficiency but also enhances the structural stability of the splice, effectively preventing the splice from deflecting during concrete pouring, thereby ensuring the overall flatness and load-bearing capacity of the floor slab.

[0008] Preferably, the positioning part is provided with a snap-fit ​​protrusion and a snap-fit ​​groove opened below the snap-fit ​​protrusion and facing downwards, and the snap-fit ​​protrusion and the snap-fit ​​groove of the adjacent profiled steel plate form a snap-fit ​​engagement.

[0009] By adopting the above technical solution, the setting of the snap-fit ​​protrusion and snap-fit ​​groove enables adjacent profiled steel sheets to be quickly spliced ​​to form a snap-fit ​​fit, which effectively enhances the connection stability between adjacent profiled steel sheets and simplifies the connection operation.

[0010] Preferably, the bottom support assembly includes a positioning post and a support rod. The positioning post is fixedly connected to the positioning part, and the positioning post forms an insertion limiting fit with the positioning hole of the adjacent profiled steel sheet. One side of the support rod is fixedly connected to the bottom of the profiled steel sheet, and the other side of the support rod forms a supporting abutment fit with the bottom of the adjacent profiled steel sheet.

[0011] By adopting the above technical solution, the positioning column is fixedly connected to the positioning part and forms an insertion limit fit with the positioning hole on the adjacent profiled steel plate, thereby achieving precise positioning and initial fixation of the adjacent profiled steel plates, effectively preventing misalignment at the splice. One end of the support rod is fixedly connected to the bottom of the profiled steel plate, and the other end forms a support abutment fit with the bottom of the adjacent profiled steel plate, thereby providing additional support force for the splice, further enhancing the structural stability of the splice, and avoiding deflection caused by load.

[0012] Preferably, the positioning post passes through the positioning part and is fixedly connected to the support rod.

[0013] By adopting the above technical solution, the positioning post passes through the positioning part and is fixedly connected to the support rod. This not only achieves precise insertion of the positioning post into the positioning hole on the adjacent profiled steel plate, but also significantly enhances the support capacity of the support rod, further improving the structural stability and load-bearing performance of the splice, and effectively preventing the splice position from deflecting.

[0014] Preferably, the profiled steel plate is provided with a reinforcing bar frame.

[0015] By adopting the above technical solution, setting steel reinforcement frames on profiled steel sheets can significantly enhance the overall strength and load-bearing capacity of prefabricated steel structure floor slabs, effectively preventing deformation or damage caused by external forces.

[0016] Preferably, the steel reinforcement frame includes a steel reinforcement frame and steel reinforcement columns fixedly connected to any corner of the steel reinforcement frame.

[0017] By adopting the above technical solution, the steel frame provides stable frame support, while the steel columns fixedly connected at any corner of the steel frame further strengthen the key stress points of the structure, thereby improving the reliability and durability of the floor deck in practical applications.

[0018] Preferably, a support rod is fixedly connected to one end of the support rod that forms a support abutment with the bottom of the adjacent profiled steel sheet, and the support rod is perpendicular to the support rod and forms a support abutment with the bottom of the adjacent profiled steel sheet.

[0019] By adopting the above technical solution, a support rod is added to one end of the support rod that forms a support and abutment fit with the bottom of the adjacent profiled steel sheet. The support rod is perpendicular to the support rod and forms a support and abutment fit with the bottom of the adjacent profiled steel sheet, thereby significantly enhancing the overall strength of the support rod. This design can effectively prevent the support rod from deforming or breaking during the stress process, ensuring that it provides stable support and reliable abutment when adjacent profiled steel sheets are spliced.

[0020] Preferably, the inner wall of the locking groove on the positioning part with the positioning hole is provided with anti-slip teeth, and the outer side of the locking protrusion on the positioning part fixedly connected to the positioning post is provided with anti-slip groove, and the anti-slip teeth and the anti-slip groove form an embedded fit.

[0021] By adopting the above technical solution, the embedded anti-slip teeth and anti-slip grooves can significantly enhance the stability of the joints between adjacent profiled steel sheets, effectively preventing relative slippage caused by load during concrete pouring, thereby improving the structural reliability of the floor slab.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By setting positioning holes and matching bottom support components on the positioning parts on both sides of the profiled steel sheet, precise positioning and reliable connection between adjacent profiled steel sheets can be achieved. The combination of the snap-fit ​​protrusions and snap-fit ​​grooves on the positioning parts allows adjacent profiled steel sheets to be interlocked to form a tight snap-fit ​​fit, which enhances the connection strength at the splice and simplifies the assembly operation. The positioning holes and the positioning posts in the bottom support components on the adjacent profiled steel sheets form an interlocking limit fit, ensuring the accuracy of the splice position. One side of the support rod is fixedly connected to the bottom of the profiled steel sheet, and the other side forms a support abutment fit with the bottom of the adjacent profiled steel sheet, providing additional support force at the splice and effectively preventing the deflection caused by the load during concrete pouring, thereby significantly improving the overall flatness and structural stability of the floor slab.

[0024] 2. By setting a steel reinforcement frame on the profiled steel sheet, the overall strength and load-bearing capacity of the floor deck are enhanced. The steel reinforcement frame provides stable support, while the steel reinforcement columns fixed at any corner of the frame further strengthen the key stress points of the structure. At the same time, a support rod is fixedly connected to one end of the support rod that forms a support abutment with the bottom of the adjacent profiled steel sheet. The support rod is perpendicular to the support rod and forms a support abutment with the bottom of the adjacent profiled steel sheet, which significantly enhances the overall strength of the support rod and effectively prevents deformation or breakage of the support rod during the stress process. The embedded anti-slip teeth and anti-slip grooves can significantly enhance the stability of the joints of adjacent profiled steel sheets and effectively prevent relative slippage caused by load during concrete pouring, thereby improving the reliability of the floor slab structure. Attached Figure Description

[0025] Figure 1 This is an isometric schematic diagram of the main overall structure in Embodiment 1 of this application;

[0026] Figure 2 This is a partial side view of Embodiment 1 of this application, which mainly illustrates the splicing structure of adjacent profiled steel sheets;

[0027] Figure 3 This is an isometric schematic diagram of the main overall structure in Embodiment 2 of this application;

[0028] Figure 4 This is an isometric bottom view of Embodiment 2 of this application, which mainly embodies the anti-slip tooth structure.

[0029] Reference numerals: 1. Corrugated steel sheet; 2. Rebar frame; 21. Rebar frame; 22. Rebar column; 3. Positioning part; 31. Engaging protrusion; 311. Anti-slip groove; 32. Engaging recess; 321. Anti-slip teeth; 33. Positioning hole; 34. Bottom support assembly; 341. Positioning column; 342. Support rod; 343. Support rod. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail.

[0031] Embodiment 1 of this application discloses a prefabricated steel structure floor deck.

[0032] Reference Figure 1 and Figure 2 A prefabricated steel structure floor deck includes a profiled steel sheet 1. Positioning portions 3 are provided on both sides of the profiled steel sheet 1 in the width direction. Each positioning portion 3 is provided with a snap-fit ​​protrusion 31 and a snap-fit ​​groove 32 opened downwards below the snap-fit ​​protrusion 31. The snap-fit ​​protrusion 31 and the snap-fit ​​groove 32 of the adjacent profiled steel sheet 1 are interlocked to form a snap-fit ​​fit. Positioning portions 3 on both sides are respectively provided with positioning holes 33 and bottom support components 34 that form an insertion and limiting fit with the positioning holes 33 of the adjacent profiled steel sheet 1. Multiple positioning holes 33 are provided along the length direction of the profiled steel sheet 1. In this embodiment, five positioning holes 33 are equally spaced, and five bottom support components 34 are equally spaced along the length direction of the profiled steel sheet 1 corresponding to the number and position of the positioning holes 33. The bottom support components 34 form a supporting and abutting fit with the bottom of the adjacent profiled steel sheet 1.

[0033] In practical use, the snap-fit ​​protrusion 31 and snap-fit ​​groove 32 combine to enable adjacent profiled steel sheets 1 to be quickly spliced ​​to form a snap-fit ​​fit. The positioning hole 33 and the bottom support component 34 of the adjacent profiled steel sheet 1 form an insertion limit fit, and the bottom support component 34 and the bottom of the adjacent profiled steel sheet 1 form a support abutment fit, so that the adjacent profiled steel sheets 1 form a detachable connection and provide additional support force for the splice, thereby improving the assembly efficiency and enhancing the structural stability of the splice. This effectively prevents the splice from deflecting during concrete pouring, thus ensuring the overall flatness and load-bearing capacity of the floor slab.

[0034] Reference Figure 1 and Figure 2 The bottom support assembly 34 includes a positioning post 341 and a support rod 342. In this embodiment, the positioning post 341 passes through the positioning part 3 and is fixedly connected to the positioning part 3 and the support rod 342 by welding. The positioning post 341 forms an insertion limiting fit with the positioning hole 33 on the adjacent profiled steel plate 1. One side of the support rod 342 is fixedly connected to the bottom of the profiled steel plate 1 by welding, and the other side of the support rod 342 forms a supporting abutment fit with the bottom of the adjacent profiled steel plate 1.

[0035] In practical use, the positioning post 341 passes through the positioning part 3 and is fixedly connected to the positioning part 3 and the support rod 342 by welding, which enhances the overall strength of the bottom support component 34. The positioning post 341 and the positioning hole 33 on the adjacent profiled steel plate 1 form an insertion limiting fit, realizing the precise positioning and initial fixation of the adjacent profiled steel plate 1. One side of the support rod 342 is welded to the bottom of the profiled steel plate 1 and the other side forms a support abutment fit with the bottom of the adjacent profiled steel plate 1, providing additional support force below the splice and further enhancing the structural stability of the splice.

[0036] Reference Figure 1 The profiled steel sheet 1 is provided with a steel reinforcement frame 2. In this embodiment, three steel reinforcement frames 2 are welded at intervals along the width direction of the profiled steel sheet 1. The steel reinforcement frame 2 includes a steel frame 21 welded to the profiled steel sheet 1 and a steel column 22 welded to the inner side of any included angle on the steel frame 21. The steel frame 21 is triangular and multiple are arranged along the length direction of the profiled steel sheet 1. Three steel columns 22 are arranged corresponding to the number of included angles of the steel frame 21. Any steel column 22 is welded to the inner side of the included angle at the same position on any steel frame 21, thus forming a steel reinforcement frame 2 in the shape of a triangular prism. In actual use, the steel frame 21 provides stable frame support, while the steel column 22 fixedly connected to any included angle of the steel frame 21 further strengthens the key stress points of the structure, effectively preventing the profiled steel sheet 1 from deforming or being damaged due to external forces.

[0037] The implementation principle of Embodiment 1 of this application is as follows: The quick insertion and positioning of adjacent profiled steel sheets 1 is achieved by combining the snap-fit ​​protrusions 31 and snap-fit ​​grooves 32 on the positioning portions 3 on both sides of the profiled steel sheet 1. The equally spaced positioning holes 33 form an insertion-limiting fit with the positioning posts 341 in the bottom support assembly 34 on the adjacent profiled steel sheet 1, completing the precise alignment of the adjacent profiled steel sheets 1. One side of the support rod 342 in the bottom support assembly 34 is welded to the bottom of the profiled steel sheet 1, and the other side forms a supporting abutment fit with the bottom of the adjacent profiled steel sheet 1, providing additional support below the splice point. To further enhance the structural stability of the splice, the positioning column 341 passes through the positioning part 3 and is fixedly connected to the positioning part 3 and the support rod 342 by welding, which enhances the overall strength of the bottom support component 34. The steel frame 21 and the steel column 22 in the steel frame 2 combine to enhance the structural strength of the profiled steel sheet 1, effectively preventing the profiled steel sheet 1 from deforming or being damaged due to external forces. In the assembly stage, the modular plug-in reduces welding operations, and in the pouring stage, the bottom support component 34 and the steel frame 2 are used to distribute the load, which not only improves construction efficiency, but also ensures the floor slab's deflection resistance and flatness.

[0038] Embodiment 2 of this application discloses a prefabricated steel structure floor deck, which differs from Embodiment 1 in that:

[0039] Reference Figure 3 and Figure 4 The support rod 342 has a support rod 343 at one end that forms a support abutment with the bottom of the adjacent profiled steel sheet 1. In this embodiment, the support rod 343 is fixedly connected to the end of the support rod 342 by welding. The support rod 343 is perpendicular to the support rod 342 and forms a support abutment with the bottom of the adjacent profiled steel sheet 1. In actual use, the support rod 343, which is perpendicular to the support rod 342, is welded to the end of the support rod 342 that forms a support abutment with the bottom of the adjacent profiled steel sheet 1, which significantly enhances the overall strength of the support rod 342 and prevents the support rod 342 from deforming or breaking during the stress process.

[0040] Reference Figure 3 and Figure 4 The inner wall of the groove 32 on the positioning part 3 with the positioning hole 33 is provided with anti-slip teeth 321 along the length of the profiled steel sheet 1. The outer side of the protrusion 31 on the positioning part 3 with the positioning post 341 is provided with anti-slip groove 311 along the length of the profiled steel sheet 1. The anti-slip teeth 321 and the anti-slip groove 311 form an embedded fit. In actual use, the embedded fit of the anti-slip teeth 321 and the anti-slip groove 311 can significantly enhance the stability of the joint of adjacent profiled steel sheets 1 and effectively prevent relative slippage caused by load during concrete pouring.

[0041] The implementation principle of Embodiment 2 of this application is as follows: A support rod 343 perpendicular to the support rod 342 is welded to one end of the support rod 342 that forms a support abutment with the bottom of the adjacent profiled steel sheet 1. The support rod 343 forms a support abutment with the bottom of the adjacent profiled steel sheet 1, which can provide support force to the lower part of the joint of the adjacent profiled steel sheet 1 from different directions during the concrete pouring process. This can effectively prevent the support rod 342 from deforming or breaking during the stress process. The embedded cooperation of the anti-slip teeth 321 and the anti-slip groove 311 can significantly enhance the stability of the joint of the adjacent profiled steel sheet 1, effectively prevent relative slippage caused by load during the concrete pouring process, thereby improving the reliability of the floor structure.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fabricated steel structure floor deck, characterized in that: The system includes a profiled steel sheet (1), and positioning parts (3) are provided on both sides of the profiled steel sheet (1) in the width direction. Adjacent profiled steel sheets (1) are fitted together by the positioning parts (3). The positioning parts (3) on both sides are respectively provided with positioning holes (33) and bottom support components (34) that are inserted and limited to the positioning holes (33) of the adjacent profiled steel sheets (1). The bottom support components (34) are supported and abutted together with the bottom of the adjacent profiled steel sheets (1).

2. The fabricated steel structure floor support plate according to claim 1, characterized in that: The positioning part (3) is provided with a snap-fit ​​protrusion (31) and a snap-fit ​​groove (32) opened below the snap-fit ​​protrusion (31) and facing downwards. The snap-fit ​​protrusion (31) and the snap-fit ​​groove (32) of the adjacent profiled steel plate (1) form a snap-fit ​​engagement.

3. The fabricated steel structure floor support plate according to claim 2, characterized in that: The bottom support assembly (34) includes a positioning post (341) and a support rod (342). The positioning post (341) is fixedly connected to the positioning part (3), and the positioning post (341) forms an insertion limiting fit with the positioning hole (33) of the adjacent profiled steel plate (1). One side of the support rod (342) is fixedly connected to the bottom of the profiled steel plate (1), and the other side of the support rod (342) forms a supporting abutment fit with the bottom of the adjacent profiled steel plate (1).

4. The fabricated steel structure floor support plate according to claim 3, characterized in that: The positioning post (341) passes through the positioning part (3) and is fixedly connected to the support rod (342).

5. The prefabricated steel structure floor support plate according to claim 1, characterized in that: A steel reinforcement frame (2) is provided on the profiled steel sheet (1).

6. A prefabricated steel structure floor decking according to claim 5, characterized in that: The steel reinforcement frame (2) includes a steel reinforcement frame (21) and steel reinforcement columns (22) fixedly connected to any corner of the steel reinforcement frame (21).

7. A prefabricated steel structure floor decking according to claim 3, characterized in that: The support rod (342) is fixedly connected to a support rod (343) at one end, which forms a support abutment fit with the bottom of the adjacent profiled steel sheet (1). The support rod (343) is perpendicular to the support rod (342) and forms a support abutment fit with the bottom of the adjacent profiled steel sheet (1).

8. A prefabricated steel structure floor decking according to claim 3, characterized in that: The inner wall of the groove (32) on the positioning part (3) with the positioning hole (33) is provided with anti-slip teeth (321), and the outer side of the protrusion (31) on the positioning part (3) with the positioning post (341) is provided with anti-slip groove (311). The anti-slip teeth (321) and the anti-slip groove (311) form an embedded fit.

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