What problems should be paid attention to in the production and installation of steel structures in winter?

The production and installation of the steel structure in winter shall be carried out in strict accordance with the relevant regulations on the construction of the steel structure in winter. When the positive and negative temperatures of the steel components are installed, the shrinkage of the parts should be considered according to the ambient temperature difference, and technical measures should be taken to adjust the deviation during construction.

Welders who carry out low-temperature steel structure construction must undergo negative temperature welding training and pass the examination before they can obtain the welder qualification certificate. Steel and related connecting materials used in low temperature conditions must be accompanied by quality certificates, and their performance should meet the design and product standards.

The exposure time of the electrode at low temperature should not exceed 2 hours, the re-baking time should exceed 2 hours, and the number of times the electrode should be baked should be less than 3 times. The flux should be baked according to regulations before use to avoid moisture content exceeding 0.1%.

High-strength bolts used at low temperature should have product qualification certificate, and re-examine the torque coefficient and axial force at low temperature. Steel structures cannot be coated with water at low temperatures.

When making parts, the shrinkage allowance, welding shrinkage and compression deformation should be ensured, which should be coordinated with the shrinkage deformation of steel at negative temperature. When the parts are assembled, they should be unfolded from the inside out in the order specified by the process, and tested at negative temperature combinations to determine the weld shrinkage that needs to be retained.

Foshan Steel Structure Company is an entity manufacturer integrating steel structure design, processing and construction. The main products are: steel structure workshop, steel structure canopy, steel structure corridor, steel structure elevator shaft, and the main steel structure Production and installation: H-beam, steel-concrete beam and column, cross column, lattice column, box column, steel structure, steel structure engineering, etc.; one-stop service for design, processing and installation, we have a professional construction design team. We have 2 of our own Steel structure factory, 30,000 square meters production base, fully automatic steel structure production line, senior technical team, deepening drawings, a powerful manufacturer of tailor-made steel structure complete solutions for customers, if you need to consult steel structure workshop, please call 24 hours service Line: . Official website

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