High-strength steel pipe truss concrete composite slab

Abstract

This utility model discloses a high-strength steel pipe truss concrete composite slab, comprising steel pipes and trusses. Multiple trusses are arranged in groups of two, with each group of trusses welded to a steel pipe. Each truss includes multiple interconnected truss units, each including interconnected support portions, web members, and bracing portions. The web members are located between the support portions and the bracing portions. The steel pipe is in contact with the support portions. The support portion includes a support rod connected to the web member and a limiting rod vertically mounted on the support rod. This high-strength steel pipe truss concrete composite slab, by welding two trusses together and placing the steel pipe within the accommodating space, prevents the circular steel pipe from shifting when held by workers, resulting in better welding performance. Furthermore, the numerous contact points between the steel pipe and the truss ensure high connection strength, making it less likely for the steel pipe and truss to separate upon impact.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe truss technology, and in particular, to a high-strength steel pipe truss concrete composite slab. Background Technology

[0002] Concrete composite slabs are constructed by inserting steel pipes or reinforcing bars into the concrete slab during its fabrication process. This process enhances the strength of the composite slab itself and strengthens the connections between the composite slabs.

[0003] Existing concrete truss composite slabs mainly consist of a base slab and steel pipe trusses. The base slab is cast integrally with the steel pipe trusses to form a concrete truss composite slab. The steel pipe trusses include circular steel pipes and trusses welded to both sides of the steel pipes. When welding the circular steel pipes to the trusses, workers need to hold the circular steel pipes by hand and weld them to the trusses. However, the workers holding the circular steel pipes are prone to jerking, resulting in inconsistent heights at the welding points between the trusses and the circular steel pipes, leading to poor welding results. Furthermore, the contact between the circular steel pipes and the trusses at the connection points is limited, resulting in low connection strength. The steel pipes and trusses are prone to separation upon impact, posing a certain safety hazard. Utility Model Content

[0004] Therefore, it is necessary to provide a high-strength steel pipe truss concrete composite slab with good welding effect and high connection strength.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a high-strength steel pipe truss concrete composite slab, the high-strength steel pipe truss concrete composite slab includes steel pipes and trusses, the trusses are multiple, two trusses are a group, a group of trusses is welded to a steel pipe, the truss includes multiple interconnected truss units, the truss unit includes interconnected support parts, web members and support parts, the web members are located between the support parts and the support parts, the steel pipe is in contact with the support parts, the support parts include support rods connected to the web members and limiting rods vertically arranged on the support rods, the connection between the web members of two trusses and the support parts is welded, and an accommodating space is formed between the two support parts after welding, the steel pipe can be placed in the accommodating space.

[0006] Furthermore, an angle A is formed between the limiting rod and the supporting rod, and the angle A is 95°-135°.

[0007] Furthermore, the truss is a one-piece molded structure formed by bending steel bars.

[0008] Furthermore, the high-strength steel pipe truss concrete composite slab also includes transverse reinforcement and longitudinal reinforcement. The transverse reinforcement passes through the truss and is arranged perpendicular to the truss, while the longitudinal reinforcement is arranged parallel to the truss.

[0009] Furthermore, the support portion has a triangular structure, and the plane in which the support portion is located is arranged parallel to the transverse reinforcing bar, with the transverse reinforcing bar pressing on the support portion.

[0010] Furthermore, a base plate is cast outside some of the web members, the support members, the transverse reinforcing bars, and the longitudinal reinforcing bars.

[0011] Furthermore, the base plate is made of concrete.

[0012] Furthermore, a pad is provided at the bottom of the support.

[0013] Furthermore, the steel pipe is a circular tubular structure with openings at both ends.

[0014] The beneficial effects of this utility model are: the high-strength steel pipe truss concrete composite slab provided by this utility model is that the steel pipe is placed in the accommodating space after welding two trusses. Therefore, the workers will not experience any jerking when holding the round steel pipe, the welding effect is better, and there is more contact between the steel pipe and the truss connection points. Therefore, the connection strength is higher, and the steel pipe and the truss are not easy to separate when they are collided. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a structural schematic diagram of the high-strength steel pipe truss concrete composite slab of this utility model;

[0017] Figure 2 yes Figure 1 The diagram shows a high-strength steel pipe truss concrete composite slab with the bottom plate omitted.

[0018] Figure 3 yes Figure 1 The diagram shows the structure of the steel pipes and trusses in the high-strength steel pipe truss concrete composite slab.

[0019] Figure 4 yes Figure 3 Left view of the steel pipes and trusses in the high-strength steel pipe truss concrete composite slab shown.

[0020] Figure 5 yes Figure 3 The front view of the steel pipes and trusses in the high-strength steel pipe truss concrete composite slab shown.

[0021] The component names and their numbers in the figure are as follows: 1. Steel pipe; 2. Truss; 20. Truss unit; 21. Support part; 211. Support rod; 212. Limiting rod; 210. Accommodation space; 22. Web member part; 23. Support part; 3. Transverse reinforcement; 4. Longitudinal reinforcement; 5. Base plate. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] Please see Figures 1 to 5 This utility model provides a high-strength steel pipe truss concrete composite slab, which includes a steel pipe 1, a truss 2, transverse reinforcing bars 3 and longitudinal reinforcing bars 4. There are multiple trusses 2, and two trusses 2 form a group. The trusses 2 are welded to the steel pipe 1. The transverse reinforcing bars 3 correspond to the trusses 2 and are inserted through the trusses 2. The transverse reinforcing bars 3 are arranged perpendicular to the trusses 2. The longitudinal reinforcing bars 4 are arranged parallel to the trusses 2 and are laid on the transverse reinforcing bars 3.

[0024] The steel pipe 1 is a circular tube structure with openings at both ends. In other embodiments not shown, the steel pipe 1 can also be a square tube or an elliptical tube. The shape of the steel pipe 1 is not limited here, and the shape of the steel pipe 1 can be set according to customer requirements.

[0025] The truss 2 includes multiple interconnected truss units 20. Each truss unit 20 includes an interconnected support portion 21, a web member portion 22, and a support portion 23. The web member portion 22 is located between the support portion 21 and the support portion 23. The support portion 21 is used to support the steel pipe 1 and is welded to the steel pipe 1. The support portion 23 corresponds to the transverse reinforcing bar 3.

[0026] In this embodiment, the steel pipe 1 is in close contact with the support part 21, which ensures the stability of the steel pipe 1 and makes it less likely to slip during welding, which is convenient for manufacturing. It also increases the contact area between the truss 2 and the steel pipe 1, improves the connection performance, and gives the truss 2 better support for the steel pipe 1.

[0027] The support portion 21 includes a support rod 211 and a limiting rod 212. The support rod 211 is fixedly connected to the web portion 23, and the limiting rod 212 is vertically mounted on the support rod 211. The support rod 211 and the limiting rod 212 are smoothly connected, and the support rod 211 provides support for the steel pipe 1. Furthermore, the limiting rod 212 is set in a vertical position, and the distance between two adjacent limiting rods 212 is slightly larger than the diameter of the steel pipe 1, thereby enabling the steel pipe 1 to be placed between two adjacent support portions 21 more quickly.

[0028] Furthermore, an included angle A is formed between the limiting rod 212 and the supporting rod 211, wherein the included angle A is 95°-135°. In this embodiment, the included angle A is 120°.

[0029] Before the steel pipe 1 is placed on the truss 2, the two trusses 2 of the same group are attached and welded together. Specifically, the connection between the web members 22 and the supporting parts 21 of the two trusses 2 is welded to ensure the connection stability between the two trusses 2. Furthermore, a receiving space 210 is formed between the two supporting parts 21 after welding, and the steel pipe 1 can be placed in the receiving space 210 to support the steel pipe 1.

[0030] The support portion 23 is approximately triangular in shape, and its plane is parallel to the transverse reinforcing bars 3, thereby providing stable support for the transverse reinforcing bars 3 and optimizing the internal support structure of the composite slab. Furthermore, a base plate 5 is cast outside part of the web members 22, the support portion 23, the transverse reinforcing bars 3, and the longitudinal reinforcing bars 4. In this embodiment, the base plate 5 is made of concrete. When the steel pipe 1 is under stress, the load transmitted to the base plate 5 can be distributed through the support portion 23, improving the usability of the composite slab.

[0031] Furthermore, the transverse reinforcing bars 3 press down on the support part 23, thereby ensuring that the composite slab has good tensile and compressive strength in the vertical direction, thus ensuring the finished quality of the composite slab.

[0032] To prevent the truss 2 from leaking out from the bottom when the base plate 5 is poured, a pad (not shown in the figure) is provided at the bottom of the support part 23, so as to achieve stable support and precise positioning of the steel pipe truss, and facilitate assembly and positioning.

[0033] In this embodiment, the truss 2 is an integrally formed structure made of bent steel bars. The bending angle is controlled by a bending machine, which results in fast forming speed and high bending accuracy, facilitating the subsequent fabrication of composite slabs.

[0034] Furthermore, there are multiple transverse reinforcing bars 3, with one transverse reinforcing bar 3 corresponding to one truss unit 20. Specifically, one transverse reinforcing bar 3 is erected on a support 23.

[0035] There are multiple longitudinal reinforcing bars 4, all of which are laid on the transverse reinforcing bars 3, and the longitudinal reinforcing bars 4 are attached to the truss 2, with one longitudinal reinforcing bar 4 corresponding to one truss 2. The provision of multiple longitudinal reinforcing bars 4 can enhance the structural strength of the composite slab.

[0036] During installation, the two trusses 2 are first welded together, and the steel pipe 1 is placed in the accommodating space 210. Then, the transverse steel bars 3 are laid on the support part 23, and the longitudinal steel bars 4 are laid on the transverse steel bars 3. Finally, the base plate 5 is poured on the outside of the partial web part 22, the support part 23, the transverse steel bars 3 and the longitudinal steel bars 4, thereby realizing the installation of the concrete composite slab.

[0037] The high-strength steel pipe truss concrete composite slab provided by this utility model is achieved by welding two trusses 2 and then placing the steel pipe 1 in the accommodating space 210. Therefore, the workers will not experience any jerking when holding the round steel pipe, the welding effect is better, and there is more contact between the steel pipe 1 and the truss 2 at the connection points. Therefore, the connection strength is higher, and the steel pipe 1 and the truss 2 are not easy to separate when they are collided.

[0038] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high-strength steel pipe truss concrete composite slab, characterized in that: The high-strength steel pipe truss concrete composite slab includes steel pipes and trusses. Multiple trusses are arranged in groups of two, with each group of trusses welded to a steel pipe. Each truss includes multiple interconnected truss units. Each truss unit includes interconnected support sections, web sections, and supporting sections. The web section is located between the support section and the supporting section. The steel pipe is in contact with the support section. The support section includes a support rod connected to the web section and a limiting rod vertically mounted on the support rod. The web sections of two trusses are welded to the support sections, forming an accommodating space between the two welded support sections, within which the steel pipe can be placed.

2. The high-strength steel pipe truss concrete composite slab as described in claim 1, characterized in that: An angle A is formed between the limiting rod and the supporting rod, and the angle A is 95°-135°.

3. The high-strength steel pipe truss concrete composite slab as described in claim 1, characterized in that: The truss is a one-piece structure formed by bending steel bars.

4. The high-strength steel pipe truss concrete composite slab as described in claim 1, characterized in that: The high-strength steel pipe truss concrete composite slab also includes transverse reinforcement and longitudinal reinforcement. The transverse reinforcement passes through the truss and is arranged perpendicular to the truss, while the longitudinal reinforcement is arranged parallel to the truss.

5. The high-strength steel pipe truss concrete composite slab as described in claim 4, characterized in that: The support part has a triangular structure, and the plane on which the support part is located is parallel to the transverse steel bar, with the transverse steel bar covering the support part.

6. The high-strength steel pipe truss concrete composite slab as described in claim 4, characterized in that: A base plate is cast outside some of the web members, the support members, the transverse reinforcing bars, and the longitudinal reinforcing bars.

7. The high-strength steel pipe truss concrete composite slab as described in claim 6, characterized in that: The base plate is made of concrete.

8. The high-strength steel pipe truss concrete composite slab as described in claim 1, characterized in that: A pad is provided at the bottom of the support.

9. The high-strength steel pipe truss concrete composite slab as described in claim 1, characterized in that: The steel pipe is a cylindrical structure with openings at both ends.

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