摘要
薄壁轻型结构具有自重轻、造型优美、抗震性能优越、投资少、施工简便等优点 ,是一种值得推广的钢结构形式。但由于重量轻 ,在动荷载 ,特别是在风荷载作用下 ,结构的动力响应较为显著。在设计中应给予足够重视。本文用有限元的方法采用板单元对一种薄壁轻型钢结构——银河屋顶的自振频率和振型进行分析 ,并讨论了其在脉动风荷载作用下的响应 。
Thin wall light weight steel structure has the advantage of low self weight, beautiful shape, good property of anti earthquake. It is an economy and convenient construction. Because of its low weight, under dynamic load, especially under wind load, the structure has more motable dynamic response, which should be noticed in designing and engineering practice. The natural frequency and vibration models of the light weight steel structure are analyzed in the paper and the dynamic responses under random wind load are also discussed. [
出处
《空间结构》
CSCD
2000年第2期44-49,共6页
Spatial Structures
