The light self weight, large flexibility, small damp and low natural vibration frequency make it very sensitive to wind load.
大跨空间结构自重轻、柔性大、阻尼小、自振频率低，对风荷载比较敏感，风荷载已经成为大跨空间结构设计的重要荷载。
Steel structure was adopted widely in structure of building and structural frame for decorating because of its property such as light self weight and convenient for construction.
钢结构由于其轻质高强、易于施工等特点，使其在建筑物结构和装饰工程构架中应用越来越广泛。
The light design of crossbeam has a good quality, light self-weight and small inertia.
横梁采用了轻型结构设计，该结构钢性好，自重轻，运行惯量小。
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