24
2018
-
02
Precautions for construction of steel structure in rainy days
Author：
The requirements for the construction of steel structures are already very strict. Sometimes we have to carry out construction due to the tight construction period and rainy weather. In order to ensure the quality and efficient completion of the work, the following precautions should be observed during construction in rainy days:
1. During construction in rainy days, a temporary protective shed should be erected, and rainwater should not fall on the hot welding seam. If the welding part is relatively wet, it must be wiped with a dry cloth and dried before welding to keep the seam dry without residual moisture.
2. When hoisting, if there is water on the components, it should be cleaned before installation, but the coating should not be damaged. When installing high-strength bolt joints, the friction surface of the components should be clean, and there should be no water droplets, let alone rain and contact with soil and oil. etc. Dirt.
3. Rainy weather components cannot be painted.
4. In rainy days and strong winds above level 5, roof insulation construction cannot be carried out.
5. In rainy days, because the air is relatively humid, the electrode should be stored in moisture-proof and baked. The same electrode should not be repeatedly baked more than twice, and the management personnel should make a baking record in time.
6. In the event of strong winds, large components such as columns, main beams, and supports should be corrected immediately, and permanent fixation should be performed immediately after the correct position correction to prevent unilateral instability. The components installed on the day should form a spatial stability system.
7. It is strictly forbidden to operate electrical equipment outdoors in rainy days or in places with water. Small accessories, such as drilling holes, can be made indoors in rainy days. For electrical circuits and electrical equipment, a comprehensive inspection and maintenance should be carried out to ensure the safety of electricity use.
During the construction of the steel structure in rainy days, we may be affected by various factors, but as long as we pay more attention, correct our work attitude, and carefully observe the precautions, we can ensure the normal operation of the work.
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