弦支穹顶在非高斯脉动风作用下的响应分析  

Response analysis of suspendome under non-Gaussian fluctuating Wind

作　　者：许逸文[1] 吕令毅[1] 

机构地区：[1]东南大学土木工程学院,南京210096

出　　处：《工程建设》2017年第3期18-22,共5页Engineering Construction

摘　　要：运用静态转换法模拟了弦支穹顶结构上层网壳节点的非高斯脉动风压,将风压加载至弦支穹顶进行时程分析,求出了弦支穹顶节点的位移响应时程以及根方差,并与高斯脉动风压的计算结果做对比分析。分析表明:非高斯风压作用下弦支穹顶结构的位移极值是高斯风压作用下的2.3倍;位移响应根方差比高斯风压作用下大20%~50%。In this paper, the non-Gaussian fluctuating wind pressure in the upper reticulated shell nodes of suspendome was simulated by using correlation deformation method. The wind pressure was applied to the suspendome for time history analysis in order to calculate the dynamic displacement and root variance of the suspendome node. The results coMPared with the Gaussian fluctuating wind pressure calculation show that, the extreme displacement under non-Gaussian wind pressure was 2.3 times of that under Gauss wind pressure, and the displacement root variance was 20% - 50% greater than that under Gauss wind pressure.

关 键 词：弦支穹顶 非高斯 静态转换法 线性滤波法 

分 类 号：TU311.3[建筑科学—结构工程] TU323.4