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Regularly check components for rust, deformation, loose bolts, etc., promptly repair damaged areas, keep the drainage system unobstructed, and regularly repaint with anti-corrosion paint.
Component quality and dimensional deviations need to be checked, connecting parts cleaned, installation equipment and tools prepared, and installation plans and emergency response plans formulated.
Lightweight steel structures use thinner steel sections (such as cold-formed steel) and are mostly used for buildings with smaller loads; heavy steel structures use thicker steel sections and are suitable for projects with large loads and spans.
Needs to be comprehensively determined considering production process requirements, equipment layout, material specifications, and economics. Common column spacing is 6-12 meters, and the span is 15-30 meters.
High temperatures reduce steel strength. Fire protection measures can include applying fire-retardant coatings, encasing with fireproof panels, and installing water spray systems.
Common forms include truss structures, space frame structures, grid shell structures, cable-stayed structures, and membrane structures.
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