What are the preventive measures for steel structure building workshop problems?
Preventive measures for problems existing in steel structure workshops
1. Improve the fire resistance of the workshop
Steel is directly related to the fire resistance of the building workshop. Because steel is not resistant to high temperature, the strength of the steel itself will be significantly reduced in a high temperature environment, resulting in deformation or even failure of steel structural components. Therefore, the flame retardancy of the steel structure building workshop should be improved as much as possible to prevent immediate failure and collapse in the event of a fire.
In order to improve the fire resistance of the steel construction, in addition to changing the steel structure and alloy composition, the flame retardancy and weather resistance of the steel are improved. Generally, the spraying method is used to improve the flame retardancy of the steel construction, the coating thickness is reasonably designed, and the coating is carried out according to the design value. The spraying method is an economical and effective method with fast construction speed and is especially suitable for steel components with complex shapes. However, at the same time, this method has the disadvantage that the rough surface is difficult to clean, and certain design techniques should be used for decoration during the construction process.
2. Reinforce the steel structure
In the design of the steel structure building workshop, the stability of the steel construction needs to be considered, and the reinforcement of the steel structure project can be realized by changing the structure. According to the distribution of the steel construction, the load should be reasonably changed. Through additional components and supports, the joint characteristics and force transmission methods are prestressed and reinforced to enhance spatial coordination.
3. Roof and support design
In order to improve the overall rigidity of the steel structure building workshop, ensure the overall stability of the building workshop, and prevent excessive deformation of components. If the pressure rod is deformed, factors such as the distribution of steel construction equipment and the length of the temperature section should be reasonably designed to make the plant support system stable and reliable.
The steel structure design can set the support system in the stable temperature section of the factory building, and coordinate the layout of the lateral horizontal support of the roof truss. The support of the lower column of the building workshop should be set in the middle of the temperature section as much as possible, so that the crane beam and other components can be freely stretched to both sides of the section with the temperature change. At present, the steel structure roof mainly includes double-layer color profiled steel clip insulation cotton and color steel plate side beams. Insulation layer, composite board roof is composed of air insulation layer and waterproof membrane layer.
4. Reasonable design of temperature expansion joints
The temperature change will cause the deformation of the steel structure building workshop, resulting in the temperature stress of the steel construction. When the plane scale of the steel construction workshop is large, in order to prevent the steel structure from having a large temperature stress, the temperature expansion joints should be reasonably set in the horizontal and vertical directions of the building workshop. According to the steel construction specification, it is determined that the expansion joint can be handled by setting two columns, and the expansion joint of the vertical temperature can be rolled at the roof truss bracket.
5. Anti-rust treatment of steel structure
Since the surface of the steel structure is directly exposed to the atmosphere, it is easy to rust, and the environment with damp or corrosive medium will accelerate the rusting of the building workshop. During the construction of the steel construction workshop, attention must be paid to the anti-rust treatment of each component. The general plan and process layout of the steel structure should be combined with the corrosive medium and environmental conditions of the steel structure. Strengthen the design of material selection to ensure the safety of the plant structure during the trial period. The anti-rust treatment combines different environments and coating characteristics, the number and thickness of the anti-rust primer and topcoat coating, and gives full play to the role of the coating in anti-rust.
