Now has entered the winter. In winter, many people will worry about the construction of the project. Under the influence of winter, some construction implementation will be affected to a certain extent. So we must pay attention to some matters in the construction. Next, we will learn about the matters needing attention in the construction of steel structure project in winter?

   Multi layer welding shall be adopted for welding steel plates above 9mm under negative temperature. The welding seams shall be overlaid layer by layer from bottom to top. Each weld shall be welded at one time. If welding infill is used, welding defects shall be eliminated before welding again.It is forbidden to strike arc on the welding base metal.In case of snowy weather or wind speed above 6m / s, protective shed shall be set up when steel structure is used for field installation.

Unqualified weld shall be eliminated and re welded, and welding shall be stopped according to the rules of welding procedure for steel structure under negative temperature.When the ambient temperature is lower than 0 ℃, the painting process experiment should be carried out in the anti-corrosion coating line. The rust, oil stain, burr and other things on the surface of the components must be cleared and the appearance should be dry.Painting shall not be stopped in snowy days or when there is thin ice on the components.

During transportation and stacking of steel structures in winter, anti-skid measures shall be taken. The stacking site of components shall be flat and solid without water pit and ice in the air.When the components of the same type are stacked, the members shall adhere to the degree, and the pad iron shall be placed on the same vertical line, and the sliding of the components shall be avoided.According to the request under negative temperature condition, the quality of the steel structure shall be re inspected before the device is constructed. Repair and correction shall be stopped in the air for the components that are not inspected during manufacturing and deformed during transportation and stacking.

When hoisting steel members with steel cables, anti-skid spacer should be added. The joint plates lifted at the same time with the components, and the fixtures needed by the device personnel should be bound firmly with ropes.According to the temperature conditions, the steel member device order chart is compiled, and the device is stopped strictly according to the rules during construction.The welding process of steel structure device shall be compiled, and the welding at both ends of a component shall not be stopped at the same time.

The above is the steel structure project in winter construction need to pay attention to the matters, want to learn more information, welcome to visit the steel structure engineering contracting website