A large-size angle steel tower component

Abstract

This utility model relates to the technical field of angle steel tower components and discloses a large-size angle steel tower component, including an angle steel body with arc-shaped edges on both sides. A load-bearing structure is provided on the angle steel body, including a node plate, angle steel diagonal members, bridging angle steel, fixing bolts, and anti-loosening washers. Multiple angle steel diagonal members are arranged on the front surface of the angle steel body, with L-shaped cross-sections. This large-size angle steel tower component, with its box-shaped structure of angle steel diagonal members and arc-shaped edges of the angle steel body as its core, significantly improves its load-bearing capacity. The closed box-shaped section has a much longer moment of inertia than the open section, allowing for uniform force transfer, reducing local stress concentration, and enhancing torsional and bending resistance. The arc-shaped edges disperse edge stress, and the secure connection of the fixing bolts and anti-loosening washers makes the entire structure more stable under complex loads, solving the problem of insufficient load-bearing capacity of traditional angle steel and making it suitable for high-pressure and heavy-load scenarios.

Description

Technical Field

[0001] This utility model relates to the technical field of angle steel tower components, specifically a large-size angle steel tower component. Background Technology

[0002] In fields such as high-voltage power transmission and heavy-load engineering, angle steel towers serve as important support structures, and their performance directly affects the safety and stability of the entire project. However, traditional angle steel towers have many technical limitations in practical applications and are difficult to meet the usage requirements in complex environments.

[0003] In terms of load-bearing capacity, traditional angle steel towers mostly adopt single angle steel structures with open cross-sections. This type of structure has a small moment of inertia, and the force flow transmission path is dispersed and uneven, making it prone to stress concentration at the nodes. When faced with complex loads such as heavy loads from high-voltage power transmission, strong winds, or earthquakes, the local stress often exceeds the material's bearing capacity limit, leading to tower deformation, cracking, or even breakage, seriously affecting its service life and safety performance, and making it difficult to adapt to high-voltage, heavy-load engineering scenarios. In view of this, a large-specification angle steel tower component is proposed. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a large-specification angle steel tower component, which solves the problem of poor load-bearing capacity of angle steel.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a large-specification angle steel tower component, comprising an angle steel body, wherein arc-shaped edges are provided on both sides of the angle steel body; The angle steel body is equipped with a load-bearing structure, which includes a node plate, angle steel diagonal members, bridging angle steel, fixing bolts, and anti-loosening washers. Multiple angle steel diagonal members are set on the front surface of the angle steel body, and the cross-section of the angle steel diagonal members is L-shaped.

[0006] Preferably, the plurality of bridging angle steels are disposed on the positive surface of the plurality of angle steel diagonal members.

[0007] Preferably, the node plate is disposed on the front surface of the bridging angle steel.

[0008] Preferably, the plurality of fixing bolts are bolted to the contact surfaces of the node plate, the angle steel diagonal members, the bridging angle steel, and the angle steel body; Multiple anti-loosening washers are installed on the contact surface between the head of the fixing bolt and the force-bearing surface of the connector.

[0009] Preferably, the node plate is hollowed out, which disperses shear force through the "spatial truss effect". It is lighter than a solid plate, reducing transportation and installation load. The hollow design reduces airflow disturbance under wind load and is suitable for strong wind scenarios.

[0010] Preferably, the angle steel diagonal member is a box-shaped structure. The box-shaped structure has a closed section, and the moment of inertia of the section is much larger than that of the angle steel with an open section. When subjected to complex loads, the box-shaped structure can transmit force flow more evenly, reduce local stress concentration, and improve torsional and bending resistance.

[0011] (III) Beneficial Effects Compared with the prior art, this utility model provides a large-size angle steel tower component, which has the following beneficial effects: 1. This large-size angle steel tower component, with its box-shaped structure of angle steel diagonal members and the arc-shaped edges of the main body of angle steel as its core, significantly improves its load-bearing capacity. The moment of inertia of the closed box section is much greater than that of the open section, which can uniformly transmit force flow, reduce local stress concentration, and enhance torsional and bending resistance. The arc-shaped edges can disperse edge stress. Combined with the firm connection of fixing bolts and anti-loosening washers, the whole structure is more stable under complex loads, solving the problem of insufficient load-bearing capacity of traditional angle steel and making it suitable for high-pressure and heavy-load scenarios.

[0012] 2. This large-size angle steel tower component achieves lightweighting and optimized wind resistance by relying on the hollow design of the node plate and the connection of the bridging angle steel. The hollow node plate disperses shear force through the "space truss effect", making it lighter and reducing the transportation and installation load. At the same time, it reduces airflow disturbance under wind load and is suitable for strong wind environments. The bridging angle steel connects multiple diagonal members to form an integrated force-bearing system, improving structural synergy and taking into account both safety and practicality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a large-specification angle steel tower component according to the present invention; Figure 2 This is a schematic diagram of the node plate structure of this utility model; Figure 3 This is a schematic diagram of the angle steel diagonal structure of this utility model.

[0014] In the diagram: 1. Angle steel body; 2. Arc edge; 3. Node plate; 4. Angle steel diagonal member; 5. Bridging angle steel; 6. Fixing bolt; 7. Anti-loosening washer. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0016] Please see Figure 1-3 This utility model provides a new technical solution: a large-specification angle steel tower component, which solves the problem of poor load-bearing capacity of angle steel. Angle steel body 1: It is the basic frame of the component, bearing the main weight of the overall structure. The two arc-shaped edges 2 can disperse edge stress, enhance overall stability, provide installation support for other components, and are the core component that maintains the shape of the tower structure.

[0017] Node plate 3: It is hollow and disperses shear force through the "space truss effect", reducing its own weight to reduce transportation and installation load. The hollow design reduces airflow disturbance under wind load, adapts to strong wind scenarios, and ensures the stability of the structure under wind force.

[0018] Angle steel diagonal member 4: The cross-section is L-shaped and has a box-shaped structure. The closed section has a large moment of inertia, which can uniformly transmit force flow, reduce local stress concentration, significantly improve the torsional and bending resistance of the component, and assist the main angle steel 1 in sharing complex loads.

[0019] Bridge angle steel 5: It is set on the front surface of the angle steel diagonal member 4, and plays the role of connecting and fixing adjacent angle steel diagonal members 4, so that multiple diagonal members form an integral force system, enhance the cooperative working ability between diagonal members, and improve the overall structure.

[0020] Fixed bolt 6: Securely connects the node plate 3, angle steel diagonal member 4, bridging angle steel 5 to the angle steel body 1, ensuring reliable contact and force transmission between the components. It is a key fastener for maintaining the connection stability of the various parts of the structure.

[0021] Anti-loosening washer 7: Located on the contact surface between the head of the fixing bolt 6 and the connecting part, it can prevent the bolt from loosening under vibration, load changes and other conditions, enhance the firmness of the connection and ensure the long-term stable connection of each component.

[0022] This large-scale angle steel tower component forms an integral load-bearing structure through the connection method described above. The hollow node plate 3 can disperse shear force by utilizing the "space truss effect". It is lighter than a solid plate, reducing the transportation and installation load. Moreover, the hollow design can reduce airflow disturbance under wind load, making it suitable for strong wind scenarios. The angle steel diagonal member 4 adopts a box-type structure. Its closed section moment of inertia is much greater than that of the open section of the angle steel. When subjected to complex loads, the box-type structure can transmit force flow more evenly, reduce local stress concentration, thereby improving torsional and bending resistance, and ensuring the stability and safety of the entire angle steel tower component during use. Example 1: Scenario of power transmission line erection in coastal areas with strong winds Refer to the attached diagram in the instruction manual. Figure 2 In coastal areas with an average annual wind speed of over 10 m / s, transmission line towers need to withstand strong wind loads for extended periods. When using this large-size angle steel tower component, the hollow design of the node plate plays a crucial role. The hollow structure allows airflow to pass smoothly through the gaps in the plate, reducing turbulent disturbances under wind loads. Compared to traditional solid node plates, the overall wind load-bearing capacity of the tower is improved. At the same time, the arc-shaped edges on both sides of the angle steel body disperse the edge stress generated by strong wind impacts. Combined with the angle steel diagonal members of the box-type structure, the component did not show significant deformation in the simulated 12-level gust test, ensuring the stability of the transmission line.

[0023] Example 2: Stress scenario of a high-voltage transmission line angle tower Refer to the attached diagram in the instruction manual. Figure 3 At the corner positions of high-voltage transmission lines, the towers need to withstand the huge lateral tensile force transmitted by the conductors. After adopting box-type angle steel diagonal members, the closed section characteristics make the force flow distribution more uniform. When the lateral tensile force reaches 50kN, the traditional open angle steel diagonal members will have obvious stress concentration at the corner (stress value of about 220MPa), while the maximum stress value of the box-type angle steel diagonal members is only 130MPa, and the stress is distributed more gently within the section. This advantage effectively avoids the plastic deformation of the diagonal members due to excessive local stress, and ensures the structural stability of the corner tower under long-term lateral force.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A large-size angle steel pole tower component comprising an angle steel main body (1), characterized in that: The angle steel body (1) has arc-shaped edges (2) on both sides. Among them, the angle steel body (1) is provided with a load-bearing structure, which includes a node plate (3), angle steel diagonal members (4), bridging angle steel (5), fixing bolts (6) and anti-loosening gaskets (7). Among them, multiple angle steel diagonal members (4) are set on the front surface of the angle steel body (1), and the cross section of the angle steel diagonal members (4) is set in an L shape.

2. A large size angle pole tower member according to claim 1, characterized in that: The plurality of bridging angle steels (5) are disposed on the front surface of the plurality of angle steel diagonal members (4).

3. A large size angle pole tower member according to claim 1, characterized in that: The node plate (3) is set on the front surface of the bridging angle steel (5).

4. A large size angle pole tower member according to claim 1, characterized in that: The plurality of fixing bolts (6) are bolted to the contact surfaces of the node plate (3), the angle steel diagonal (4), the bridging angle steel (5) and the angle steel body (1); Among them, multiple anti-loosening washers (7) are set on the contact surface between the head of the fixing bolt (6) and the connecting part.

5. A large size angle pole tower member according to claim 1, characterized in that: The node plate (3) is hollowed out.

6. A large size angle pole tower member according to claim 1, characterized by: The angle steel diagonal member (4) is a box-shaped structure. The box-shaped structure is a closed section, and the moment of inertia of the section is much greater than that of the angle steel with an open section.

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