Deformation Joint Problems That Should Be Paid Attention To in The Design Of Steel Bridge Manufacturers

In the process of my country's industrialization, the workshop is the relative place for processing and production. In recent years, steel bridge manufacturers have gradually replaced the traditional brick-concrete structure workshops with their advantages of environmental protection, short construction period, and high space utilization. For the construction of steel bridge manufacturers, we were very concerned about its cost from the very beginning. We are all looking forward to buying cheap tools, just like manufacturing in a steel structure factory. The steel structure workshop is favored by most people today because it has its own unique advantages, good material processing performance and good mechanical properties, which greatly improves the overall strength of the steel structure workshop, and improves its load-bearing capacity and overall Carrying performance. So, should the deformation joints of the steel structure workshop be considered when designing the steel structure workshop?

1. Deformation joints of steel structure workshop.

In order to prevent cracking or damage of the steel structure workshop caused by temperature changes, uneven foundation settlement, earthquakes and other factors, the deformation-sensitive parts in the design are pre-disconnected and the building is divided into several relatively independent units. The reserved gap can ensure that the building has enough space for deformation. This group of structural fractures are called deformation joints!

2. Temperature expansion joints.

Temperature changes will cause the steel structure workshop to turn red, and the structure will generate temperature stress. The temperature stress is related to the stiffness of the column, the elevation of the crane rail top and the temperature difference. When the plane size of the plant is large, in order to avoid excessive temperature forces, temperature seams should be set horizontally or longitudinally in the plant, and the plant with a large plane size should be divided into several temperature sections. The length of the temperature section can be implemented in accordance with the "Code for Design of Steel Structures". Temperature expansion joints are generally treated with double-column or single-column treatment. Longitudinal temperature expansion joints can be provided with rolling bearings at the roof support, and the connection between the frame beam and the purlin can adopt oval hole sliding or channel steel splint sliding for lateral temperature expansion and contraction.

3. Setting up the support system of steel bridge manufacturers.

In order to ensure the space work of the steel structure factory building, improve its overall rigidity, bear and transmit longitudinal horizontal force, prevent excessive deformation of components, avoid the instability of the compression rod, and ensure the overall stability of the structure, according to the structure of the factory building, there is no crane, Unprepared vibration, the span and height of the workshop, and the length of the temperature section, set up a reliable support system. Steel structure supports are divided into column supports and roof supports.

4. Anti-corrosion of steel bridge manufacturers.

If the surface of the steel structure is exposed to the atmosphere without protection, it will rust. When there are corrosive media in the air of the steel structure factory building or the steel components are in a humid environment, the corrosion of the steel structure factory building will become more obvious and serious. The corrosion of the steel structure not only reduces the section thickness of the component, but also produces local rust spots on the surface of the component. When a structural member is stressed, it will cause stress concentration, leading to premature failure of the structure. Therefore, the anti-corrosion of steel structure workshop should be paid enough attention. According to the corrosive medium and environmental conditions of the device, corresponding countermeasures and measures shall be taken from the general layout, the structure selection of the internal process layout, and the material selection to ensure the safe use of the device. Generally speaking, the surface of steel structure is usually coated with anti-rust paint. The number of layers and total thickness of the coating should be determined according to the use environment and coating performance of the component.

5. Thermal insulation and fire protection design. When the steel is heated to above 100℃, the tensile strength of the steel decreases with the increase of temperature, and the plasticity increases with the increase of temperature; when the temperature is about 250℃, the tensile strength of steel is slightly There is an increase, but the plasticity is reduced, leading to blue brittleness; when the temperature exceeds 250°C, the steel will creep; when the temperature reaches 500°C, the strength of the steel drops to a very low level, causing the steel structure to collapse. Therefore, when the surface temperature of the steel structure.