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日期:2021-01-15 00:02 人气:
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1. In case o贵阳 f strong win夜网   , large components, such as column, main beam and support, should be corrected immediately. After correcting the correct position, it should be fixed to prevent unilateral instability. Components installed on the same day shall form a space stability system.
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2. When lifting, if there is water on the component, 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 shall be clean and free from water drops, rain, soil and grease. Wait for the dirt.

3. Components cannot be painted in rainy days.

4. The construction of membrane structure roof can not be carried out in rainy days and strong wind above grade 5.

5. In rainy days, due to the humid air, the welding rod should be moistureproof and baked. Repeated baking of the same electrode should not be more than twice, and management personnel should timely record baking.

6. Temporary protective shed shall be built during construction in rainy days, and rainwater shall not fall on hot welds. If the welded parts are wet, they must be cleaned with dry cloth and dried with acetylene flame before welding to keep the joint dry and free of residual moisture.





The membrane can only bear tension, but not pressure and bending. The stability of the bending surface is guaranteed by the opposite curvature, so it needs to be made into concave convex curved surface, so it is usually called spatial membrane structure. Please look forward to the next article.

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