单向张弦梁结构风振响应的时域分析  

Analysis of wind-induced dynamic response for single beam string structures

作　　者：黄颖[1] 房贞政[1] 陈红媛[1] 

机构地区：[1]福州大学土木工程学院,福建福州350108

出　　处：《地震工程与工程振动》2009年第2期110-117,共8页Earthquake Engineering and Engineering Dynamics

基　　金：福建省自然科学基金项目(2007J0152)

摘　　要：张弦梁屋盖结构自重轻,地震作用下的动力问题不是结构设计的控制因素,但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。本文首先利用M atlab编程工具,模拟结构的风速时程曲线,然后利用有限元软件中的瞬态动力学分析模块对这种结构进行动力时程分析,讨论其在脉动风荷载作用下的动力响应,并将结果和频域法脉动风荷载的分析结果进行对比,验证了计算结构的可靠性。得到一些有意义的结论,供张弦梁结构的工程应用参考。It is generally considered that the seismic response of the beam string structure is not the control factor of structure design beeausc of its light dead weigh. But the wind-induced dynamic response of the structure is significant, so more attention must be paid to it. First the wind simulation of the structure by AR model is carried out. Then the TRANS method in the ANSYS is used to calculate the dynamic responses in time domain and to compare the results with those in frequcncy domain in order to verify the validity of the two methods. Some conclusions are drawn, which are useful for directing the design of the beam string structure.

关 键 词：张弦梁结构 风振响应 AR模型 瞬态动力学分析 

分 类 号：P315.96[天文地球—地震学]