Steel bar truss type floor support plate

Abstract

The utility model provides a kind of steel bar truss type floor support plate, belong to building engineering technical field.The technical scheme is based on the structure of web steel bar and lower chord steel bar, lower chord steel bar is placed, and additional outer lower cross bar, upper cross bar, binding buckle, wherein, the bottom end of each lower chord steel bar is welded with the outer lower cross bar of each lower chord steel bar vertical intersection, the top lower side of two side web steel bars is welded with the inner upper chord steel bar parallel with lower chord steel bar, there is gap between the inner upper chord steel bar and the top of two side web steel bars, upper cross bar is penetrated and welded at gap portion, binding buckle is arranged at gap portion.The utility model improves truss structure, lower chord steel bar is placed, upper cross bar is additionally arranged at the gap formed, and outer lower cross bar is additionally arranged at the bottom of truss, and binding buckle is arranged simultaneously to play the role of reinforcement.Benefiting from the above structural improvement, the structural strength of floor support plate is significantly improved, and the engineering requirements of large-span building floor can be met.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically a steel truss floor deck. Background Technology

[0002] Reinforced truss floor decking, also known as reinforced truss formwork, is a composite structural system formed by fabricating the main load-bearing steel bars in a factory using specialized equipment, and then welding the steel trusses to galvanized steel sheets. During the construction phase of the structural floor slab, this system, using galvanized steel sheets instead of formwork, shares the self-weight of the concrete slab and construction loads with the truss structure formed by welding the steel bars together. After pouring concrete, a reinforced truss concrete floor slab is formed, which bears the service loads during the service phase. Reinforced truss floor decking is currently widely used in multi-story factories, multi-story, high-rise, and high-rise steel structure buildings. Its typical structure includes a top chord, a bottom chord, and web members. Although the manufacturing methods and construction processes are relatively mature, it is difficult to further improve the load-bearing capacity of this conventional floor decking structure, making it unable to meet the engineering requirements of large-span building floors. Summary of the Invention

[0003] The technical problem to be solved by this utility model is: how to further improve the structural strength of steel truss floor decking.

[0004] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0005] A steel truss floor deck includes web reinforcement and bottom chord reinforcement. The tops of the web reinforcement on both sides are welded together, and bottom chord reinforcement is welded to the bottom of the web reinforcement on both sides. It also includes outer bottom transverse reinforcement, top transverse reinforcement, inner top chord reinforcement, gap, and binding buckle. The outer bottom transverse reinforcement perpendicular to each bottom chord reinforcement is welded to the bottom end of each bottom chord reinforcement. The inner top chord reinforcement parallel to the bottom chord reinforcement is welded to the lower side of the top of the web reinforcement on both sides. There is a gap between the inner top chord reinforcement and the top of the web reinforcement on both sides. The top transverse reinforcement passes through and is welded to the gap. Binding buckle is provided at the gap.

[0006] As a preferred option, a bottom mold is welded to the bottom end of each outer lower horizontal rib.

[0007] Preferably, the lower part of the web reinforcement, the lower chord reinforcement, and the outer lower transverse reinforcement are located in the precast layer.

[0008] Preferably, a cast-in-place layer is provided above the precast layer, and the upper part of the web reinforcement, the upper transverse reinforcement, and the inner upper chord reinforcement are located in the cast-in-place layer.

[0009] Preferably, two upper transverse ribs are inserted through each gap.

[0010] Preferably, an inner lower transverse bar parallel to the outer lower transverse bar is welded to the upper side of the lower end of each web bar.

[0011] Preferably, an outer upper chord bar parallel to the lower chord bar is welded between the tops of the web bars on both sides.

[0012] In the above technical solutions, the web reinforcement and bottom chord reinforcement can adopt a conventional welded structure, forming the main structure of the truss together with the top chord reinforcement. This invention places the top chord reinforcement at the bottom (i.e., the inner top chord reinforcement) and welds it to the lower side of the weld point between the two web reinforcements. This serves both to create a gap as a stress point for the upper transverse reinforcement and to improve the structural strength between the two web reinforcements. The outer bottom transverse reinforcement is used to strengthen the structural strength between adjacent trusses from the bottom. This invention adds upper transverse reinforcement to the lower side of the weld point between the two web reinforcements, strengthening the structure between adjacent trusses and reinforcing the stress points at the top of the truss. Furthermore, binding buckles are added to ensure structural strength.

[0013] In the preferred technical solution, a bottom formwork is welded to the bottom of the truss to form a modular metal floor deck; alternatively, the lower part of the truss can be pre-embedded in the precast layer, and the upper layer (i.e., cast-in-place layer) can be poured after transportation to the site. In addition, the upper transverse reinforcement can be single or double strands, and inner lower transverse reinforcement can be welded to the upper side of the lower end of each web reinforcement. Furthermore, outer upper chord reinforcement can be added between the tops of the web reinforcement on both sides to further strengthen the structure.

[0014] This utility model provides a steel truss-type floor deck. This technical solution improves the truss structure by placing the upper chord reinforcement at the bottom, adding upper transverse reinforcement at the resulting gaps, and adding outer lower transverse reinforcement at the bottom of the truss. Tie-locking buckles are also installed for reinforcement. Thanks to these structural improvements, the structural strength of the floor deck is significantly enhanced, meeting the engineering requirements of large-span building floors. Attached Figure Description

[0015] Figure 1 This is an overall drawing of the present invention;

[0016] Figure 2 This is a partial view of the present invention;

[0017] Figure 3 This is a close-up view of the location of the tying buckles;

[0018] Figure 4 It is a partial view of the structure, including the web reinforcement, bottom chord reinforcement, and inner top chord reinforcement.

[0019] Figure 5 This is a partial cross-sectional view of the present invention;

[0020] In the picture:

[0021] Detailed Implementation

[0022] The technical solutions in 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, not all, of the embodiments of this application. 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. Furthermore, those skilled in the art will understand that with technological development and the emergence of new scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0023] In the description of this application, it should be understood that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, any terminology used is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0024] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0025] Example 1

[0026] A type of reinforced steel truss floor deck, such as Figures 1-5 As shown, it includes web reinforcement bars 1 and bottom chord reinforcement bars 2. The tops of the web reinforcement bars 1 on both sides are welded together, and bottom chord reinforcement bars 2 are welded to the bottoms of the web reinforcement bars 1 on both sides respectively. It also includes outer bottom transverse reinforcement bars 3, upper transverse reinforcement bars 5, inner top chord reinforcement bars 6, gaps 7, and binding buckles 8. The outer bottom transverse reinforcement bars 3, which are perpendicular to each bottom chord reinforcement bar 2, are welded to the bottom end of each bottom chord reinforcement bar 2. The inner top chord reinforcement bars 6, which are parallel to the bottom chord reinforcement bars 2, are welded to the lower side of the top of the web reinforcement bars 1 on both sides. There is a gap 7 between the inner top chord reinforcement bars 6 and the tops of the web reinforcement bars 1 on both sides. The upper transverse reinforcement bars 5 are welded through and through the gap 7. Binding buckles 8 are provided at the gap 7.

[0027] In the above technical solutions, the web reinforcement 1 and the lower chord reinforcement 2 can adopt a conventional welded structure, together with the upper chord reinforcement, to form the main structure of the truss. In this invention, the upper chord reinforcement is placed at the bottom (i.e., the inner upper chord reinforcement 6), and welded to the lower side of the welding point of the two web reinforcement 1. This serves both to construct the gap 7 as a stress point for the upper transverse reinforcement 5 and to improve the structural strength between the two web reinforcement 1. The outer lower transverse reinforcement 3 is used to strengthen the structural strength between adjacent trusses from the bottom. This invention adds an upper transverse reinforcement 5 below the welding point of the two web reinforcement 1, which strengthens the structure between adjacent trusses and also reinforces the stress points at the top of the truss. Furthermore, binding buckles 8 are added to ensure structural strength.

[0028] Example 2

[0029] A type of reinforced steel truss floor deck, such as Figures 1-5 As shown, the structure includes web reinforcement 1 and bottom chord reinforcement 2. The tops of the web reinforcement 1 on both sides are welded together, and bottom chord reinforcement 2 is welded to the bottom of the web reinforcement 1 on both sides. It also includes outer bottom transverse reinforcement 3, upper transverse reinforcement 5, inner upper chord reinforcement 6, gap 7, and binding buckle 8. The outer bottom transverse reinforcement 3, perpendicular to each bottom chord reinforcement 2, is welded to the bottom end of each bottom chord reinforcement 2. The inner upper chord reinforcement 6, parallel to the bottom chord reinforcement 2, is welded to the lower side of the top of the web reinforcement 1 on both sides. A gap 7 exists between the inner upper chord reinforcement 6 and the tops of the web reinforcement 1 on both sides. The upper transverse reinforcement 5 passes through and is welded to the gap 7, and binding buckle 8 is provided at the gap 7. A bottom formwork is welded to the bottom end of each outer bottom transverse reinforcement 3. The lower part of the web reinforcement 1, the bottom chord reinforcement 2, and the outer bottom transverse reinforcement 3 are located in the precast layer 4. A cast-in-place layer 11 is provided above the precast layer 4. The upper part of the web reinforcement 1, the upper transverse reinforcement 5, and the inner upper chord reinforcement 6 are located in the cast-in-place layer 11. Two upper transverse reinforcements 5 pass through each gap 7. An inner lower transverse reinforcement 9 parallel to the outer lower transverse reinforcement 3 is welded to the upper side of the lower end of each web reinforcement 1. An outer upper chord reinforcement 10 parallel to the lower chord reinforcement 2 is welded between the tops of the web reinforcement 1 on both sides. In the above technical solution, a bottom formwork is welded at the bottom of the truss to form a modular metal floor deck; the lower part of the truss is pre-embedded in the precast layer 4, and the upper layer (i.e., the cast-in-place layer 11) is poured after transportation to the site. In addition, the upper transverse reinforcement 5 adopts double strands, and the inner lower transverse reinforcement 9 is welded to the upper side of the lower end of each web reinforcement 1. An outer upper chord reinforcement 10 is also added between the tops of the web reinforcement 1 on both sides to further strengthen the structure.

[0030] In summary, after reading this detailed disclosure, those skilled in the art will understand that the foregoing detailed disclosure is presented by way of example only and is not restrictive. Although not explicitly stated herein, those skilled in the art will understand that this application is intended to encompass various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are intended to be made by this application and are within the spirit and scope of the exemplary embodiments of this application.

[0031] It should be understood that in the foregoing description of the embodiments of this application, various features are combined in a single embodiment, drawing, or description for the purpose of simplifying the understanding of a feature. However, this does not mean that the combination of these features is necessary, and those skilled in the art can certainly extract some of the features as individual embodiments when reading this application.

[0032] It should be understood that the embodiments disclosed herein are illustrative of the principles of this application. Other modified embodiments are also within the scope of this application. The embodiments disclosed herein are merely examples and not limitations, and the embodiments of this application are not limited to the embodiments precisely described above.

Claims

1. A reinforced steel truss floor deck, comprising web reinforcement (1) and bottom chord reinforcement (2), wherein, The tops of the two web bars (1) are welded together, and the bottoms of the two web bars (1) are respectively welded with lower chord bars (2); characterized in that it also includes an outer lower transverse bar (3), an upper transverse bar (5), an inner upper chord bar (6), a gap (7), and a binding buckle (8), wherein an outer lower transverse bar (3) perpendicularly intersecting with each lower chord bar (2) is welded to the bottom end of each lower chord bar (2), an inner upper chord bar (6) parallel to the lower chord bar (2) is welded to the lower side of the top of the two web bars (1), a gap (7) is provided between the inner upper chord bar (6) and the tops of the two web bars (1), an upper transverse bar (5) is welded through and welded to the gap (7), and a binding buckle (8) is provided at the gap (7).

2. The steel truss floor decking according to claim 1, characterized in that, Bottom molds are welded to the bottom ends of each outer lower horizontal rib (3).

3. A steel truss floor decking according to claim 1, characterized in that, The lower part of the web reinforcement (1), the lower chord reinforcement (2), and the outer lower transverse reinforcement (3) are located in the precast layer (4).

4. A steel truss floor decking according to claim 3, characterized in that, A cast-in-place layer (11) is provided on the upper side of the precast layer (4), and the upper part of the web reinforcement (1), the upper transverse reinforcement (5), and the inner upper chord reinforcement (6) are located in the cast-in-place layer (11).

5. A steel truss floor decking according to claim 1, characterized in that, Two upper transverse ribs (5) are simultaneously inserted at each gap (7).

6. A steel truss floor decking according to claim 1, characterized in that, An inner lower transverse bar (9) parallel to the outer lower transverse bar (3) is welded to the upper side of the lower end of each web bar (1).

7. A steel truss floor decking according to claim 1, characterized in that, An outer upper chord steel bar (10) parallel to the lower chord steel bar (2) is welded between the tops of the web steel bars (1) on both sides.

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