Introduce the precautions for winter construction of steel structure engineering
Date：2021-12-19 Views：871
How to construct steel structure engineering in winter? Below, the steel structure company will explain to you that when welding steel plates above 9mm under negative temperature, multi-layer welding should be used. The weld seam should be stacked layer by layer from bottom to top, and each weld seam should be welded in one go. If there are any welding gaps, the welding defects should be eliminated before welding again. It is strictly prohibited to strike an arc on the welding base material. When constructing on-site devices for steel structures, if encountering snowy weather or wind speeds above 6m/s, a protective shed should be erected.
Unqualified welds shall be eradicated and re welded, and welding shall be stopped according to the rules of the steel structure welding process at negative temperatures. When the ambient temperature is below 0 ℃, the coating process experiment must be carried out when applying anti-corrosion coating. During the coating process, it is necessary to clean the rust, oil stains, burrs, and other objects on the surface of the component, and adhere to the principle of dry appearance. Do not stop painting work on snowy days or when there is thin ice on the components.
During winter transportation and stacking of steel structures, anti-skid measures should be taken, and the component stacking site should be flat and solid without water pits, and there should be no ice formation in the air. When stacking components of the same model, the degree of adherence of the components should be maintained, and the pad iron should be placed on the same vertical line to avoid slipping of the components. Before constructing the steel structure device, the quality of the device shall be retested according to the request under negative temperature conditions. For components that are missed during manufacturing and deformed during transportation and stacking, repair and correction shall be stopped in the air.
When using steel cables to lift steel components, anti-skid spacers should be added. The node plates that are lifted simultaneously with the components, fixtures and other items required by device personnel should be securely tied with ropes. Compile a sequence chart of steel component devices based on temperature conditions, and strictly stop the devices according to the rules during construction. Prepare the welding process for steel construction equipment, and the welding of both ends of a component shall not be stopped at the same time.
How to construct steel structure engineering in winter? Below, the steel structure company will explain to you that when welding steel plates above 9mm under negative temperature, multi-layer welding should be used. The weld seam should be stacked layer by layer from bottom to top, and each weld seam should be welded in one go. If there are any welding gaps, the welding defects should be eliminated before welding again. It is strictly prohibited to strike an arc on the welding base material. When constructing on-site devices for steel structures, if encountering snowy weather or wind speeds above 6m/s, a protective shed should be erected.
Unqualified welds shall be eradicated and re welded, and welding shall be stopped according to the rules of the steel structure welding process at negative temperatures. When the ambient temperature is below 0 ℃, the coating process experiment must be carried out when applying anti-corrosion coating. During the coating process, it is necessary to clean the rust, oil stains, burrs, and other objects on the surface of the component, and adhere to the principle of dry appearance. Do not stop painting work on snowy days or when there is thin ice on the components.
During winter transportation and stacking of steel structures, anti-skid measures should be taken, and the component stacking site should be flat and solid without water pits, and there should be no ice formation in the air. When stacking components of the same model, the degree of adherence of the components should be maintained, and the pad iron should be placed on the same vertical line to avoid slipping of the components. Before constructing the steel structure device, the quality of the device shall be retested according to the request under negative temperature conditions. For components that are missed during manufacturing and deformed during transportation and stacking, repair and correction shall be stopped in the air.
When using steel cables to lift steel components, anti-skid spacers should be added. The node plates that are lifted simultaneously with the components, fixtures and other items required by device personnel should be securely tied with ropes. Compile a sequence chart of steel component devices based on temperature conditions, and strictly stop the devices according to the rules during construction. Prepare the welding process for steel construction equipment, and the welding of both ends of a component shall not be stopped at the same time.
