Steel pipe wind-resistant truss structure

Abstract

The utility model discloses a kind of steel pipe wind-resistant truss structures, including multiple truss bodies, the end-to-end butt joint solid block is clamped between end and end between two adjacent described truss bodies, the both ends of the intermediate butt solid block are located in the inside of truss body end, and the end outside of intermediate butt solid block is slidably installed with truss end connecting block, the end of truss end connecting block is contacted with truss body, and the outer surface of truss end connecting block is fixed with two reinforcing convex limit blocks distributed up and down.The utility model has the advantages that when external wind is larger, truss body is influenced by wind and drives truss end connecting block to move along the axial direction of intermediate butt solid block, at this time, truss end connecting block slides and makes elastic limit support rod stress bending, provides a sliding distance for truss body and offsets wind, thereby reduce the fracture risk of steel pipe truss connecting place or the probability of connecting piece damage.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe truss technology, and in particular to a steel pipe wind-resistant truss structure. Background Technology

[0002] Steel pipe trusses, also known as tubular trusses, are lattice structures composed of round pipe members connected at the ends by welding or bolting. They belong to a type of spatial grid structure and are mainly used in large-span public buildings, such as stadiums, convention centers, high-speed rail platforms, and industrial plants. This structure uses steel pipes as the main material, and the cross-sections of the members are evenly distributed around the neutral axis. It has strong resistance to compression, bending, and torsion and can be designed in various forms such as simply supported trusses, arches, or frames.

[0003] However, in the existing technology, steel pipe trusses are fixed together by screws or welding. The steel pipe trusses are rigidly connected to each other without expansion joints. When the external wind force is strong, the stress on the connection part of the steel pipe truss will increase with the increase of wind force, which will lead to the risk of breakage at the connection of the steel pipe truss. Utility Model Content

[0004] The technical problem this utility model aims to solve is that steel pipe trusses are fixed together by screws or welding, and the steel pipe trusses are rigidly connected without expansion joints. When the external wind force is strong, the stress on the connection part of the steel pipe truss will increase with the increase of wind force, resulting in the risk of breakage at the connection of the steel pipe truss.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A steel pipe wind-resistant truss structure includes multiple truss bodies. A solid intermediate connecting block is engaged between the ends of two adjacent truss bodies. Both ends of the solid intermediate connecting block are located inside the ends of the truss bodies, and truss end connecting blocks are slidably installed on the outer sides of the ends of the solid intermediate connecting blocks. The truss end connecting blocks contact the ends of the truss bodies, and two vertically distributed reinforcing protrusion limiting blocks are fixed to the outer surface of the truss end connecting blocks. Truss reinforcing steel cables are engaged on the outer sides of the reinforcing protrusion limiting blocks. Two truss end connecting blocks located at both ends of the same truss body are locked together by the truss reinforcing steel cables.

[0007] Preferably, end fixing rings are fixed to the outer sides of both ends of the intermediate docking solid block, and multiple elastic limiting support rods are fixed between the end fixing rings and the truss end connecting block.

[0008] Preferably, the elastic limiting support rod is made of spring steel, and the elastic limiting support rod is distributed in a circular array around the axis of the central docking solid block.

[0009] Preferably, the outer surface of the reinforcing protrusion limiting block is provided with a reinforcing steel cable slot, the reinforcing steel cable slot has a U-shaped structure, and the truss reinforcing steel cable is engaged inside the reinforcing steel cable slot.

[0010] Preferably, the diameter of the truss reinforcing cable is equal to the width of the reinforcing cable slot, and both ends of the truss reinforcing cable are fixed and locked by rope clamps.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] The truss main body is connected and fixed from the inside of the truss main body using intermediate solid blocks and truss end connecting blocks. The radial force of the truss main body is improved by the intermediate solid blocks and truss end connecting blocks. At the same time, the truss end connecting blocks are fixed by end fixing rings and elastic limiting support rods at the ends of the intermediate solid blocks. In low wind or windless conditions, the truss end connecting blocks will not move outside the intermediate solid blocks. However, in the case of strong winds, the truss end connecting blocks can slide outside the intermediate solid blocks, causing the elastic limiting support rods to bend under force, providing a sliding distance for the truss main body and offsetting the wind force, thereby reducing the risk of breakage at the steel pipe truss connection or the probability of damage to the connecting parts. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0015] Figure 3 This is a schematic diagram showing the connection between the truss end connecting block and the truss end connecting block of the utility model.

[0016] Figure 4 This is a cross-sectional view of the solid block with intermediate joint in this utility model.

[0017] In the diagram: 1. Truss main body; 2. Solid block for intermediate connection; 3. Truss end connecting block; 4. Reinforcing protrusion limiting block; 5. Reinforcing steel cable slot; 6. Truss reinforcing steel cable; 7. End fixing ring; 8. Elastic limiting support rod. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] like Figure 1 and Figure 3 As shown, a steel pipe wind-resistant truss structure includes multiple truss bodies 1. A solid intermediate connecting block 2 is engaged between the ends of two adjacent truss bodies 1. Both ends of the solid intermediate connecting block 2 are located inside the ends of the truss bodies 1, and truss end connecting blocks 3 are slidably installed on the outer sides of the ends of the solid intermediate connecting blocks 2. The truss end connecting blocks 3 contact the ends of the truss bodies 1, and two vertically distributed reinforcing protrusion limiting blocks 4 are fixed to the outer surface of the truss end connecting blocks 3. Truss reinforcing steel is engaged on the outer sides of the reinforcing protrusion limiting blocks 4. The cable 6 is used to lock the two truss end connecting blocks 3 located at both ends of the same truss body 1. The truss body 1 ends are connected and fixed from the inside of the truss body 1 by the intermediate solid block 2 and the truss end connecting block 3. The radial force of the truss body 1 is increased by the intermediate solid block 2 and the truss end connecting block 3. At the same time, the truss end connecting blocks 3 at both ends of the truss body 1 are fixed by the truss reinforcing cable 6, thereby preventing the truss end connecting blocks 3 from falling off the truss body 1.

[0020] As a preferred technical solution in this embodiment, such as Figure 2 and Figure 3 As shown, the outer surface of the reinforcing protrusion limiting block 4 is provided with a reinforcing steel cable groove 5. The reinforcing steel cable groove 5 has a U-shaped structure, and the truss reinforcing steel cable 6 is clamped inside the reinforcing steel cable groove 5. The diameter of the truss reinforcing steel cable 6 is equal to the width of the reinforcing steel cable groove 5, and the two ends of the truss reinforcing steel cable 6 are fixed and locked by rope clamping. The truss reinforcing steel cable 6 is clamped inside the reinforcing steel cable groove 5, which increases the frictional resistance between the truss reinforcing steel cable 6 and the reinforcing steel cable groove 5, and ensures that the truss reinforcing steel cable 6 will not loosen or fall off.

[0021] As a preferred technical solution in this embodiment, such as Figure 4 As shown, end fixing rings 7 are fixed to the outer sides of both ends of the solid block 2 in the middle docking. Multiple elastic limiting support rods 8 are fixed between the end fixing rings 7 and the truss end connecting block 3. The elastic limiting support rods 8 are made of spring steel and are arranged in a circular array around the axis of the solid block 2 in the middle docking. By using the end fixing rings 7 and the elastic limiting support rods 8 to fix the truss end connecting block 3, the truss end connecting block 3 will not move outside the solid block 2 in the windless or windless environment, thus ensuring the stable connection between the truss body 1 and the truss body 2.

[0022] Working principle: During the construction and assembly of the steel pipe truss, firstly, align the ends of the two truss main bodies 1. Then, insert both ends of the intermediate solid block 2 into the ends of the truss main body 1. After the ends of the intermediate solid block 2 are inside the ends of the two truss main bodies 1, bring the two truss main bodies 1 closer together until the truss main body 1 contacts the truss end connecting block 3, and the large end of the truss end connecting block 3 is in close contact with the intermediate solid block 2. Next, clamp the truss reinforcing steel cable 6 onto the reinforcing protrusion limiting block 4 on the outside of the truss end connecting block 3 at both ends of the same truss main body 1, so that... The truss reinforcement cable 6 is clamped inside the reinforcement cable slot 5, and both ends of the truss reinforcement cable 6 are tightened. After the truss reinforcement cable 6 is tightened, the ends of the truss reinforcement cable 6 are fixed and locked by the rope clamp fixing method. When the external wind force is strong, the truss body 1 is affected by the wind force and drives the truss end connecting block 3 to move axially along the middle docking solid block 2. At this time, the truss end connecting block 3 slides and causes the elastic limit support rod 8 to bend under force, providing a sliding distance for the truss body 1 and offsetting the wind force, thereby reducing the risk of breakage at the connection of the steel pipe truss or the probability of damage to the connecting parts.

[0023] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A steel pipe wind-resistant truss structure, comprising multiple truss main bodies (1), characterized in that: Two adjacent truss bodies (1) are connected end to end by a solid intermediate docking block (2). The two ends of the solid intermediate docking block (2) are located inside the ends of the truss bodies (1), and a truss end connecting block (3) is slidably installed on the outer side of the ends of the solid intermediate docking block (2). The truss end connecting block (3) is in contact with the ends of the truss bodies (1), and two vertically distributed reinforcing protrusion limiting blocks (4) are fixed on the outer surface of the truss end connecting block (3). A truss reinforcing steel cable (6) is connected to the outer side of the reinforcing protrusion limiting block (4). The two truss end connecting blocks (3) located at both ends of the same truss body (1) are locked together by the truss reinforcing steel cable (6).

2. The steel pipe wind-resistant truss structure according to claim 1, characterized in that: The outer sides of both ends of the solid block (2) in the middle docking are also fixed with end fixing rings (7), and multiple elastic limiting support rods (8) are fixed between the end fixing rings (7) and the truss end connecting block (3).

3. A steel pipe wind-resistant truss structure according to claim 2, characterized in that: The elastic limiting support rod (8) is made of spring steel, and the elastic limiting support rod (8) is arranged in a circular array around the axis of the central docking solid block (2).

4. The steel pipe wind-resistant truss structure according to claim 1, characterized in that: The outer surface of the reinforcing protrusion limiting block (4) is provided with a reinforcing steel cable slot (5). The reinforcing steel cable slot (5) has a U-shaped structure, and the truss reinforcing steel cable (6) is clamped inside the reinforcing steel cable slot (5).

5. A steel pipe wind-resistant truss structure according to claim 4, characterized in that: The diameter of the truss reinforcing cable (6) is equal to the width of the reinforcing cable slot (5), and both ends of the truss reinforcing cable (6) are fixed and locked by rope clamp fixing method.

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