Laying structure of steel structure house floor bearing plate

Abstract

The utility model relates to the technical field of steel structure buildings, in particular to a laying structure of a steel structure house floor bearing plate, which comprises a bottom plate laid on a beam body and a steel bar truss arranged on the bottom plate, the steel bar truss comprises an upper chord steel bar and a lower chord steel bar, and a web member steel bar is connected between the upper chord steel bar and the lower chord steel bar. The two sides of the bottom plate are respectively provided with an edge hooking part with an upward opening and an edge hooking part with a downward opening, the edge hooking parts and the edge hooking parts are used for splicing two adjacent bottom plates, the two ends of the bottom plate are provided with edge folding parts, and the edge folding parts are connected with anti-curling pieces used for preventing the two ends of the bottom plate from curling. The two ends of the floor support plate are kept in a flat state through the two ends of the floor support plate, the floor support plate can be flatly attached to a beam body during laying, it is ensured that concrete is denser during pouring, the original shape and structure of the bottom plate can be maintained, it is ensured that loads can be evenly transmitted under stress, and the integrity and stability of the whole structure are guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of steel structure buildings, and in particular to a laying structure of floor bearing plates for steel structure houses and buildings. Background Art

[0002] A floor bearing plate is a precast component for construction, mainly used for the floor structure of steel structure buildings. It is precast from reinforced concrete and has the advantages of strong bearing capacity, fast construction speed, and stable quality. When installing the floor bearing plate, it is directly laid on beams or columns, and then concrete is poured to form an integral floor structure. In order to improve the bearing capacity and stability, since the steel bar truss usually adopts a triangular structure, the triangular structure can effectively disperse the load to each support point, avoiding stress concentration, thereby improving the bearing capacity of the overall structure. In some floor structures that bear large loads, steel bar truss floor bearing plates are usually used.

[0003] However, since the bottom of the current steel bar truss floor bearing plate is generally composed of a galvanized plate with a thickness of 0.5 - 0.7 mm, during the transportation of the galvanized plate or the process of installing it on the beam body, due to reasons such as bumping, the edges of the galvanized plate may curl, resulting in the inability to fit smoothly with the beam surface, forming gaps and holes. When pouring concrete, the cement slurry may leak from these gaps and holes, causing the loss and waste of concrete. In addition, the non-fitting parts are also prone to accumulating air and forming bubbles, affecting the quality and durability of the concrete, and thus affecting the construction quality of the floor bearing plate. Summary of the Utility Model

[0004] This application provides a laying structure of floor bearing plates for steel structure houses and buildings to avoid curling at the edges when laying the floor bearing plates.

[0005] The above technical objectives of this application are achieved through the following technical solutions:

[0006] A laying structure of floor bearing plates for steel structure houses and buildings includes a bottom plate for laying on a beam body and a steel bar truss provided on the bottom plate. The steel bar truss includes upper chord steel bars and lower chord steel bars, and web steel bars are connected between the upper chord steel bars and the lower chord steel bars. Hook edge parts with upward openings and hook edge parts with downward openings are respectively provided on both sides of the bottom plate for splicing two adjacent bottom plates. Flanging parts are provided at both ends of the bottom plate, and anti-rolling parts for preventing the two ends of the bottom plate from curling are connected to the flanging parts. The anti-rolling parts include at least two anti-rolling strips arranged in parallel along the width extension direction of the bottom plate, and a connecting part is provided between at least two of the anti-rolling strips.

[0007] By adopting the above technical solution and arranging anti-rolling parts at both ends of the bottom plate, it is possible to avoid the two sides of the bottom plate from being unable to fit smoothly with the beam body due to curling, making it tighter during concrete pouring, effectively transferring the load, and improving the bearing capacity and stability of the entire structure.

[0008] Optionally, the cross-sectional shape of the anti-roll strip and the connecting piece is square.

[0009] By adopting the above technical solution, it is easy to process and the manufacturing cost is lower.

[0010] Optionally, the cross-sectional shape of the anti-roll strip and the connecting piece is an I-shape.

[0011] By adopting the above technical solution, the bending resistance is stronger and the effect of preventing the curling of the two ends of the bottom plate is better.

[0012] Optionally, a bolt positioning groove is provided on the folded edge portion, and the bolt positioning groove is located between two adjacent connecting members.

[0013] By adopting the above technical solution, the position of the bolt can be positioned to avoid interference with the connecting piece when the bolt is welded to the beam body.

[0014] Optionally, abutments are provided on inner walls of both sides of the bottom plate close to the hook edge portion, and a gap is left between the free end of the abutment and the inner wall of the hook edge portion.

[0015] By adopting the above technical solution, it is avoided that the hook edge is flattened by external force, which causes obstruction when connecting two adjacent bottom plates.

[0016] Optionally, an arc-shaped introduction portion is provided at the end of the resistance member.

[0017] By adopting the above technical solution, the hook edge portion on the other bottom plate can be guided, making it easier for the hook edge portion to enter.

[0018] Optionally, the upper chord steel bars are provided with tie bars, and the tie bars are arranged perpendicular to the steel truss.

[0019] By adopting the above technical solution, the steel trusses can be connected into a whole, the collaborative working ability of the structure can be improved, and the force on each part can be more evenly distributed.

[0020] Optionally, the abutment member is equal to the length of the hook edge portion, and is arranged parallel to an extension direction of the length of the hook edge portion.

[0021] By adopting the above technical solution, it is possible to avoid the hook edge being partially flattened and causing the edge to fold.

[0022] By setting anti-rolling parts, the two ends of the floor deck can be kept flat, so that it can be evenly attached to the beam during laying, ensuring that the concrete is more compact during pouring, and the original shape and structure of the bottom plate can be maintained, ensuring that the load can be evenly transferred when subjected to force, and ensuring the integrity and stability of the overall structure;

[0023] By providing the abutment, it is possible to avoid the hook edge being flattened by external force when the floor deck is laid, thereby affecting the mutual insertion of the hook edge portions of two adjacent bottom plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the three-dimensional structure provided by this application Figure 1 ;

[0025] Figure 2 It is the three-dimensional structure provided by this application Figure 2 ;

[0026] Figure 3 It is a front view of the connection structure between the bottom plate and the anti-rolling member provided by the present application;

[0027] Figure 4 This is a schematic structural diagram of the first implementation method provided by this application;

[0028] Figure 5 It is a structural schematic diagram of the second implementation mode provided by this application;

[0029] Figure 6 It is a schematic diagram of the hook edge parts on the two bottom plates provided by the present application being separated;

[0030] Figure 7 It is a schematic diagram of the hook edges on the two bottom plates provided in the present application being engaged.

[0031] Explanation of the reference numerals: 1. beam body; 2. bottom plate; 21. folded edge portion; 3. steel bar truss; 31. upper chord steel bar; 32. lower chord steel bar; 33. web bar steel bar; 4. hook edge portion; 5. anti-rolling part; 51. anti-rolling strip; 52. connecting part; 6. bolt positioning groove; 7. abutment; 71. arc-shaped introduction portion; 8. tensioning bar. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings.

[0033] The present application embodiment discloses a laying structure of a steel structure floor deck, such as Figures 1-7As shown, it includes a bottom plate 2 for laying on the beam body 1 and a steel truss 3 arranged on the bottom plate 2, the steel truss 3 includes an upper chord steel bar 31 and a lower chord steel bar 32, and a web steel bar 33 is connected between the upper chord steel bar 31 and the lower chord steel bar 32, and the two sides of the bottom plate 2 are respectively provided with a hook edge portion 4 opening upward and a hook edge portion 4 opening downward, which are used to splice two adjacent bottom plates 2, and the bottom plate 2 can adopt a galvanized plate with a thickness of 0.5-0.7mm. The steel truss 3 is used above the bottom plate 2 to improve the overall bearing capacity, so as to have better stability during the subsequent concrete pouring, and when splicing two adjacent bottom plates 2, the hook edge portion 4 opening upward on one side of the bottom plate 2 is connected with the hook edge portion 4 opening downward on one side of the other bottom plate 2, so that the two bottom plates 2 are spliced, and it is also avoided that the bottom plates 2 are spliced ​​in the later stage during the concrete pouring. When pouring soil, leakage and the like occur. In order to prevent the two ends of the bottom plate 2 from being bent by external forces during transportation or laying, and failing to make close contact with the beam body 1 when laid on the beam body 1, folded edges 21 are provided at both ends of the bottom plate 2, and anti-rolling parts 5 are connected to the folded edges 21. The anti-rolling parts 5 are used to prevent the two ends of the bottom plate 2 from curling, so that both sides of the bottom plate 2 can remain flat. When laying the floor decking, the folded edges 21 at both ends of the bottom plate 2 are first laid on the beam body 1 respectively, so that the anti-rolling parts 5 at the bottom are in close contact with the beam body 1. When pouring concrete, the concrete is more densely connected to the beam body 1 and the bottom plate 2, and the bottom plate 2 maintains its original shape through the anti-rolling parts 5, ensuring that the load can be evenly transferred when subjected to force, ensuring the integrity and stability of the overall structure, and improving the bearing capacity.

[0034] Specifically, the anti-roll component 5 includes at least two anti-roll strips 51 arranged in parallel along the width extension direction of the base plate 2. The anti-roll strips 51 are used to prevent the two ends of the base plate 2 from being bent under the action of external force, and a connecting member 52 is provided between at least two anti-roll strips 51. The connecting member 52 can be used to firmly connect multiple anti-roll strips 51, so that they are not easily deformed and dislocated when subjected to external force. At the same time, it helps to evenly distribute the load acting on the anti-roll strips 51 to avoid local concentrated force. The anti-roll strips 51 and the connecting member 52 as well as the base plate 2 can be connected by welding, and the anti-roll strips 51 and the connecting member 52 can be supported by metal materials with higher hardness such as steel to extend their service life.

[0035] like Figure 4 As shown, the first embodiment provided by the utility model is that the cross-sectional shape of the anti-roll strip 51 and the connecting member 52 is square, the size of the square cross-section in all directions is more uniform, the bending resistance is more balanced, there is no obvious directional difference, and the scope of application is wider.

[0036] like Figure 5As shown, the second embodiment provided by the utility model is that the cross-sectional shape of the anti-roll strip 51 and the connecting member 52 is an "I" shape, and the upper and lower flanges thereof are far away from the neutral axis, which can play a greater role in resisting bending. The cross-sectional distribution of the "I" shape is more in line with the force characteristics, and most of the material is distributed in the upper and lower flanges far away from the neutral axis. These parts can generate greater stress when resisting bending, thereby more effectively resisting bending deformation. Unlike the first embodiment, the material distribution of the square cross-section is relatively uniform, and its efficiency in resisting bending is not as high as that of the anti-roll strip 1 with an "I" shaped cross-section.

[0037] Further, such as Figure 1 As shown, after the base plate 2 is laid, in order to be able to be pulled together with the beam body 1 during the subsequent pouring of concrete, the ends of the base plate 2 are fixedly connected to the beam body 1 by welding bolts. In order to avoid welding the bolts to the connecting pieces 52, bolt positioning grooves 6 are provided on the folded edge portion 21. The bolt positioning grooves 6 are located between two adjacent connecting pieces 52. When welding the bolts, it is only necessary to place the bolts at the position of the bolt positioning grooves 6 so that they can be staggered with the connecting pieces 52 so that the bolts can be welded to the beam body 1.

[0038] Further, such as Figure 6 as well as Figure 7 As shown, abutment members 7 are provided on the inner walls of the hook edge portions 4 on both sides of the base plate 2, and a gap is left between the free ends of the abutment members 7 and the inner walls of the hook edge portions 4. When the hook edge portions 4 are subjected to external forces, the abutment members 7 support the hook edge portions 4 between the base plate 2 and the hook edge portions 4, so that the hook edge portions 4 will not be flattened and contact the base plate 2. When two adjacent base plates 2 are spliced, the two mating hook edge portions 4 can engage with each other, and there is no need to manually flanging the hook edge before splicing, thereby improving the laying efficiency.

[0039] Furthermore, the length of the resisting member 7 is equal to that of the hook edge portion 4, and they are arranged parallel to the length extension direction of the hook edge portion 4, so that the entire hook edge portion will not be flattened.

[0040] Furthermore, if Figure 6 As shown, an arc-shaped introduction portion 71 is provided at the end of the abutment 7. When one hook edge portion 4 is inserted into another hook edge portion 4, a flared state is formed between the lower point of the arc-shaped introduction portion 71 and the inner wall of the hook edge portion 4, which facilitates the insertion of the other hook edge portion 4. At the same time, the arc-shaped design can transform the contact between the hook edge portion 4 and the abutment 7 into a line contact, resulting in less friction during insertion.

[0041] Furthermore, stirrups 8 are provided on the upper chord reinforcement 31. The stirrups 8 are perpendicularly arranged to the steel bar truss 3. The stirrups 8 can effectively connect the steel bar truss 3 into a whole, improve the cooperative working ability of the structure, make the force on each part more uniform, enhance the overall stability, and can fix the position of the steel bar truss 3, prevent the steel bar truss 3 from displacing during the construction process, ensure that the layout of the steel bar truss 3 meets the design requirements, and thus guarantee the mechanical properties of the structure.

[0042] This specific embodiment is only an interpretation of the present application and is not a limitation thereof. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A laying structure for a steel structure floor deck, comprising a bottom plate (2) for laying on a beam body (1) and a steel truss (3) arranged on the bottom plate (2), wherein the steel truss (3) comprises an upper chord steel bar (31) and a lower chord steel bar (32), a web steel bar (33) is connected between the upper chord steel bar (31) and the lower chord steel bar (32), and two sides of the bottom plate (2) are respectively provided with a hook edge portion (4) opening upward and a hook edge portion (4) opening downward, for splicing two adjacent bottom plates (2), characterized in that: The two ends of the bottom plate (2) are provided with folded edge portions (21), and the folded edge portions (21) are connected to anti-rolling components (5) for preventing the two ends of the bottom plate (2) from curling. The anti-rolling component (5) comprises at least two anti-rolling strips (51) arranged in parallel along a width extension direction of the bottom plate (2), and a connecting component (52) is provided between at least two of the anti-rolling strips (51).

2. The laying structure of the steel structure floor deck according to claim 1 is characterized by: The cross-sectional shape of the anti-roll strip (51) and the connecting piece (52) is square.

3. The laying structure of the steel structure floor deck according to claim 1 is characterized by: The cross-sectional shape of the anti-roll strip (51) and the connecting piece (52) is an "I" shape.

4. The laying structure of the steel structure floor deck according to claim 1 is characterized by: The folded edge portion (21) is provided with a bolt positioning groove (6), and the bolt positioning groove (6) is located between two adjacent connecting members (52).

5. The laying structure of the steel structure floor deck according to claim 1 is characterized by: Abutment members (7) are provided on the inner walls of the two sides of the bottom plate (2) close to the hook edge portion (4), and a gap is left between the free end of the abutment member (7) and the inner wall of the hook edge portion (4).

6. The laying structure of the steel structure floor deck according to claim 5 is characterized by: An arc-shaped introduction portion (71) is provided at the end of the resisting member (7).

7. The laying structure of the steel structure floor deck according to claim 1 is characterized by: The upper chord steel bars (31) are provided with tension bars (8), and the tension bars (8) are arranged perpendicular to the steel bar truss (3).

8. The laying structure of the steel structure floor deck according to claim 5 is characterized by: The resisting member (7) is equal in length to the hook edge portion (4) and is arranged parallel to the length extension direction of the hook edge portion (4).

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