Reinforced truss floor deck convenient to connect

Abstract

The utility model relates to the technical field of steel bar truss floor support plate, and disclose a steel bar truss floor support plate convenient to connect, including bearing plate and the steel bar truss of setting on it, the side edge of bearing plate is equipped with the bearing baffle of bearing hole, and the other side edge is connected with the covering plate of covering axle. The utility model forms the mechanical positioning reference of explicit horizontal and longitudinal through the covering axle of first floor support plate is directly inserted in the bearing hole of second same floor support plate, effectively solved the problem of the low efficiency and misplacement of the not smooth splicing positioning of the prior art due to the lack of mechanical positioning reference, realized the quick, accurate alignment and connection between the board and the board.

Description

Technical Field

[0001] This utility model relates to the field of steel truss floor decking technology, specifically a steel truss floor decking that is easy to connect. Background Technology

[0002] A steel truss floor deck is a composite component in which the reinforcing steel bars of a concrete floor slab are welded into a three-dimensional truss in the factory and connected to the base slab as one unit. During construction, it can also serve as a load-bearing formwork. After the concrete has solidified, it works together with the floor slab to bear the service load.

[0003] The on-site splicing of existing steel truss floor decks is often fraught with difficulties due to the lack of effective mechanical positioning benchmarks. The slabs are usually joined by simple overlaps or pre-installed connectors. During installation, construction workers need to make frequent fine adjustments in the horizontal, vertical, and even longitudinal directions to align the welded parts or match the bolt holes. This repeated adjustment process is not only time-consuming and labor-intensive, which seriously slows down the construction progress, but also makes it very easy for human error to cause slab misalignment and uneven joints, which directly affects the installation accuracy and overall flatness of the floor deck, and poses hidden dangers to subsequent construction and structural safety. Utility Model Content

[0004] The purpose of this utility model is to provide a steel truss floor deck that is easy to connect, thus solving the problem of poor splicing and positioning.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a steel truss floor deck that is easy to connect, comprising a bearing plate and a steel truss disposed thereon. One side edge of the bearing plate is provided with an upwardly extending bearing baffle, and the bearing baffle is provided with a bearing hole along its length direction. The other side edge of the bearing plate is connected to a cover plate, and the cover plate includes a cover plate. A cover shaft protruding outward is fixedly disposed below the cover plate. The cover shaft of the first floor deck is configured to be able to engage with the bearing hole of the second identical floor deck to form a mechanical positioning reference in the transverse and longitudinal directions when the first floor deck and the second floor deck are spliced.

[0007] Furthermore, the bearing plate has an inwardly recessed bearing channel on its surface, and the cover plate has an outwardly protruding cover bar below it. The shape of the cover bar is adapted to the shape of the bearing channel, so that the cover bar of the first floor deck can support and be positioned within the bearing channel of the second identical floor deck.

[0008] Furthermore, the bearing channel is three concave semi-circular grooves arranged in a horizontal array, and the cover bar is three convex semi-circular ribs arranged in a horizontal array that match the shape of the bearing channel.

[0009] Furthermore, the steel truss is a load-bearing steel bar, which includes an upper chord steel bar, two lower chord steel bars, and web steel bars. The web steel bars are welded between the upper chord steel bars and the lower chord steel bars and arranged in an M-shape. The bottom curved portion of the web steel bars is interspersed with connecting steel bars.

[0010] Furthermore, multiple reinforcing steel plates are welded between the upper chord steel bars and the lower chord steel bars, and the reinforcing steel plates have recesses that match the shapes of the upper chord steel bars and the lower chord steel bars.

[0011] Furthermore, five reinforcing steel plates are equidistantly arranged along the length of the upper chord reinforcing bar, and each reinforcing steel plate has a longitudinal hole in the center along the direction of the upper chord reinforcing bar, and each reinforcing steel plate also has a transverse hole at the same level as the longitudinal hole.

[0012] This utility model has the following beneficial effects:

[0013] (1) This utility model effectively solves the problem of poor splicing positioning caused by the lack of mechanical positioning reference in the prior art by inserting and cooperating the cover shaft set on the cover plate with the bearing hole on the bearing baffle of the adjacent floor deck. This design forms a direct horizontal and vertical mechanical positioning reference during installation. Construction personnel no longer need to make tedious repeated fine adjustments to quickly achieve accurate alignment between the boards, avoiding board misalignment and uneven joints caused by human error, and greatly improving installation accuracy and efficiency.

[0014] (2) This utility model solves the problem that the bonding force between the steel truss and the concrete is limited by relying solely on surface adhesion. By welding multiple reinforcing steel plates with concave openings between the upper chord steel bars and the lower chord steel bars and setting longitudinal and transverse holes on them, the present invention not only enhances the strength of the truss joints, but also forms dense concrete pins after the concrete is poured, which greatly improves the mechanical interlocking force and shear resistance between the steel truss and the concrete, thereby ensuring the high overall stiffness and load-bearing capacity of the composite floor slab.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0018] Figure 2 This is a schematic cross-sectional view of the assembly front end of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the assembly end of this utility model;

[0020] Figure 4 This is a half-sectional view of the overall structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the overall structure of this utility model;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] In the diagram: 1. Bearing plate; 11. Bearing channel; 12. Bearing baffle; 13. Bearing hole; 2. Cover plate; 21. Covering plate; 22. Covering bar; 23. Covering shaft; 3. Bearing reinforcement; 31. Top chord reinforcement; 32. Bottom chord reinforcement; 33. Web reinforcement; 34. Connecting reinforcement; 35. Reinforcing steel plate; 351. Longitudinal hole; 352. Transverse hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0025] Please see Figures 1-5 As shown, this utility model is a steel truss floor deck that is easy to connect, including a bearing plate 1 and a steel truss set thereon. One side edge of the bearing plate 1 is provided with an upwardly extending bearing baffle 12, and the bearing baffle 12 is provided with a bearing hole 13 along its length direction.

[0026] The surface of the bearing plate 1 is provided with an inwardly recessed bearing channel 11;

[0027] The bearing channel 11 consists of three concave semi-circular grooves arranged in a horizontal array;

[0028] When splicing floor decking, the bearing plate 1 of the second floor decking uses three concave semi-circular bearing channels 11 arranged horizontally on its surface to accurately support and limit the corresponding protruding structure of the other plate, thus achieving initial vertical support and horizontal guidance. At the same time, the bearing baffle 12 extending upward on its side and the bearing holes 13 opened on it are used to cooperate with the connecting shaft of the adjacent plate to complete the final horizontal and vertical precise positioning between the two plates. The bearing channels 11, the bearing baffle 12 and the bearing holes 13 together constitute an efficient mechanical positioning system. Meanwhile, the arrayed bearing holes 13 can effectively play a sealing role to prevent grout leakage during concrete pouring.

[0029] The other edge of the support plate 1 is connected to a cover plate 2, which includes a cover plate 21 and a cover shaft 23 protruding outward is fixedly provided below the cover plate 21.

[0030] The cover shaft 23 of the first floor deck is configured to engage with the bearing hole 13 of the second identical floor deck to form a mechanical positioning reference in the lateral and longitudinal directions when the first floor deck and the second floor deck are spliced ​​together.

[0031] A cover bar 22 protruding outward is provided below the cover plate 21;

[0032] The shape of the cover bar 22 is adapted to the shape of the support channel 11, so that the cover bar 22 of the first floor deck can be supported and positioned in the support channel 11 of the second identical floor deck;

[0033] The cover bar 22 consists of three outwardly protruding semi-circular ribs arranged in a horizontal array that match the shape of the bearing channel 11;

[0034] During the splicing of floor decking, the cover plate 2 of the first floor decking begins to function. The three outwardly protruding semi-circular cover bars 22 arranged horizontally below the cover plate 21 are first placed smoothly and fitted into the corresponding bearing channels 11 of the second floor decking, completing the initial vertical bearing and horizontal limiting. Then, the construction workers press down to make the cover shaft 23 fixedly set below the cover plate 21 accurately inserted into the bearing hole 13 of the second floor decking, thereby realizing the final horizontal and vertical mechanical locking between the two plates. Through the fitting of the cover bars 22 and the bearing channels 11 and the insertion of the cover shaft 23 and the bearing hole 13, a fast and accurate positioning and connection system is formed.

[0035] Please see Figure 4 As shown, the steel truss is a load-bearing steel bar 3, which includes an upper chord steel bar 31, two lower chord steel bars 32 and a web steel bar 33. The web steel bar 33 is welded between the upper chord steel bar 31 and the lower chord steel bar 32 and arranged in an M shape. The bottom curved part of the web steel bar 33 is interspersed with connecting steel bars 34.

[0036] Multiple reinforcing steel plates 35 are welded between the upper chord steel bar 31 and the lower chord steel bar 32. The reinforcing steel plates 35 have recesses that match the shape of the upper chord steel bar 31 and the lower chord steel bar 32.

[0037] Five reinforcing steel plates 35 are arranged equidistantly along the length of the upper chord steel bar 31. Each reinforcing steel plate 35 has a longitudinal hole 351 in the center along the direction of the upper chord steel bar 31, and each reinforcing steel plate 35 also has a transverse hole 352 on the same horizontal plane as the longitudinal hole 351.

[0038] When concrete is poured onto this floor slab, the load-bearing steel bars 3, acting as the core load-bearing framework, begin to function as a whole. The web steel bars 33, welded between the upper chord steel bars 31 and the two lower chord steel bars 32 and arranged in an M-shape, effectively transfer and distribute stress between the upper and lower parts. Meanwhile, the connecting steel bars 34, interspersed in their curved bottom sections, ensure the stability and integrity of the entire truss during the pouring process. Simultaneously, five equidistant arrayed reinforcing steel plates 35 are tightly welded to the upper chord steel bars 31 and the lower chord steel bars 32 through their recessed openings. This greatly enhances the local stiffness and joint strength of the truss. In addition, the longitudinal holes 351 and transverse holes 352 on each reinforcing steel plate 35 are fully filled with grout during concrete pouring, forming through concrete pins. Through the M-shaped optimized arrangement of the web reinforcement 33 and the tie effect of the connecting reinforcement 34, the three-dimensional stability and deformation resistance of the truss are improved. The reinforcing steel plate 35 and its longitudinal holes 351 and transverse holes 352 together greatly enhance the bond force and mechanical interlocking force between the concrete and the steel truss.

[0039] In use, the construction workers first align one side of the cover plate 2 of the first floor deck with one side of the support plate 1 of the second floor deck. Then, they precisely insert the cover bar 22 of the first floor deck into the support channel 11 of the second floor deck. This action completes the initial vertical positioning and support between the two plates. Next, the most crucial step is to move downward and press the first floor deck firmly, so that the cover shaft 23 under its cover plate 2 is stably inserted into the support hole 13 on the support baffle 12 of the second floor deck. This insertion process instantly completes the precise lateral and longitudinal mechanical positioning between the two plates without repeated fine-tuning. At the same time, the lateral array... The tight interlocking of multiple bearing holes 13 with the covering shaft 23 effectively prevents grout leakage from the joints during subsequent concrete pouring, achieving a good sealing effect. After all the floor decks are spliced ​​into an integral platform in this way, concrete can be poured on top of it. After the concrete solidifies, it not only combines with the bearing plate 1, which serves as the formwork, but also wraps the bearing steel truss 3, which consists of the upper chord steel bar 31, the lower chord steel bar 32, the M-shaped web steel bar 33, and the connecting steel bar 34. At the same time, it fills the longitudinal holes 351 and transverse holes 352 on the reinforcing steel plate 35, ultimately forming a strong composite floor slab that shares the load with the floor deck.

[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, 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 this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A steel truss floor deck that is easy to connect, comprising a load-bearing plate (1) and a steel truss disposed thereon, characterized in that: The bearing plate (1) has an upwardly extending bearing baffle (12) on one side edge, and the bearing baffle (12) has a bearing hole (13) along its length direction; The other edge of the support plate (1) is connected to a cover plate (2), the cover plate (2) includes a cover plate (21), and an outwardly protruding cover shaft (23) is fixedly provided below the cover plate (21); The cover shaft (23) of the first floor deck is configured to engage with the bearing hole (13) of the second identical floor deck to form a mechanical positioning reference in the transverse and longitudinal directions when the first floor deck and the second floor deck are spliced ​​together.

2. The steel truss floor decking for easy connection according to claim 1, characterized in that: The bearing plate (1) has an inwardly recessed bearing channel (11) on its surface; A protruding cover bar (22) is provided below the cover plate (21); The shape of the cover bar (22) is adapted to the shape of the bearing channel (11), so that the cover bar (22) of the first floor deck can be supported and positioned in the bearing channel (11) of the second identical floor deck.

3. The steel truss floor decking for easy connection according to claim 2, characterized in that: The bearing channel (11) is three concave semi-circular grooves arranged in a horizontal array, and the cover bar (22) is three convex semi-circular ribs arranged in a horizontal array that match the shape of the bearing channel (11).

4. The steel truss floor decking that is easy to connect according to claim 1, characterized in that: The steel truss is a load-bearing steel bar (3), which includes an upper chord steel bar (31), two lower chord steel bars (32) and a web steel bar (33). The web steel bar (33) is welded between the upper chord steel bar (31) and the lower chord steel bar (32) and arranged in an M-shape. The bottom curved part of the web steel bar (33) is interspersed with connecting steel bars (34).

5. A steel truss floor decking that is easy to connect according to claim 4, characterized in that: Multiple reinforcing steel plates (35) are welded between the upper chord steel bar (31) and the lower chord steel bar (32), and the reinforcing steel plates (35) have recesses that match the shape of the upper chord steel bar (31) and the lower chord steel bar (32).

6. A steel truss floor decking that is easy to connect according to claim 5, characterized in that: Five reinforcing steel plates (35) are arranged equidistantly along the length of the upper chord steel bar (31). Each reinforcing steel plate (35) has a longitudinal hole (351) in the center along the direction of the upper chord steel bar (31), and each reinforcing steel plate (35) also has a transverse hole (352) on the same horizontal plane as the longitudinal hole (351).

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