Reasonable design of prefabricated steel structure warehouse

Anti rust Treatment of Steel Structure of Prefabricated Warehouse

The steel structure surface of the prefabricated warehouse is directly exposed to the atmosphere, which is easy to rust. The damp environment and the existence of corrosion media will accelerate the corrosion of the steel structure warehouse. Therefore, in the design of prefabricated steel structure warehouse, attention must be paid to the rust prevention treatment of each component. In combination with the corrosion medium and environmental conditions of the steel structure, the design of the general drawing, process layout, material selection and other aspects of the steel structure shall be strengthened to ensure the safety of the steel structure of the prefabricated warehouse during the test. Comprehensively consider the difference of environment and coating characteristics, and conduct the number and thickness of antirust primer and finishing coat to give full play to the antirust effect of the coating.

Roof and support design

In order to improve the overall stiffness of the steel structure warehouse, ensure the overall stability, and avoid excessive deformation of the steel structure members and instability of the compression bar, the steel structure manufacturer shall provide the steel structure warehouse with the following measures. The steel structure support system needs to design reasonable form, equipment layout, temperature section length and other factors to ensure its stability and reliability.

However, since the columns with stable temperature section in the prefabricated steel structure warehouse should be provided with a support system, and the horizontal support of the roof should be coordinated. The lower column support of the steel structure warehouse needs to be set in the middle of the temperature zone, so that the crane beam and other components can freely expand to both ends of the section with the change of temperature. At present, the steel roof mainly consists of a rigid roof consisting of two layers of color profiled steel sandwiched with thermal insulation cotton, which is composed of color steel plate inner plate, thermal insulation layer, air barrier layer and coiled material waterproof layer.

Reasonable design of temperature expansion joint

The temperature change at the site of the prefabricated steel structure warehouse will cause deformation and thermal stress. In the case of large plane size of the prefabricated warehouse, in order to avoid large temperature stress, it is necessary to reasonably set temperature expansion joints in the vertical and horizontal directions of the steel structure warehouse. Generally, the temperature expansion joint is treated by setting double columns, and the longitudinal temperature expansion joint can be set on the support of the roof.