...报（自然科学版、英文版） 关键字: 大跨屋盖结构；风致响应；Ritz向量；POD分解[gap=1449]Key words: long span roof structure; wind-induced response; Ritz vector; POD decomposition...
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Large span roofs are widely used in various large public buildings, such as gymnasiums, exhibition pavilions and hangars.
近几十年来,大跨屋盖结构得到了前所未有的发展,被广泛用于体育场馆、会议展览中心、机场航站楼等大型公共建筑中。
参考来源 - 大跨屋盖结构等效静风荷载精细化理论研究Although the different forms of these long-span roof structure,they have some common features,such as generally light, larger flexibility,low damping and natural frequency. Wind load is one of the control loads in the structure design.
尽管这些大跨屋盖结构的形式不尽相同,但它们都具有一些共同特点,即质量轻、柔度大、固有频率低、阻尼小等特点,它们都属于风敏感结构,因而风荷载就成为设计这些屋盖结构的主要控制荷载之一。
参考来源 - 大跨度屋盖结构风振响应及风振系数研究·2,447,543篇论文数据，部分数据来源于NoteExpress
相对于抗震设计而言，大跨屋盖结构的抗风设计，目前尚无设计规范可依。
Relative to the seismic - resistant design, no corresponding items in criterions can be referred to wind - resistant design of the large span steel roof structures up to now.
大跨屋盖结构由于跨度较大，竖向地震作用显著，有必要采取减震控制措施。
The vertical component of earthquake can not be neglected for large-span roof structure and some seismic control technology is necessary.
基于荷载响应相关法提出了一种计算大跨屋盖结构等效静力风荷载的新方法。
Solution of wind induced random vibration of large span roof structures based on CQC method;
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