(1 天津大学建筑工程学院， 天津 300072；2 天津大学滨海土木工程结构与安全教育部重点实验室， 天津 300072)

［摘要］为了研究大跨度空间结构风振响应特性,基于风洞试验所得体型系数及线性自回归滤波法生成的风荷载时程曲线，利用ANSYS软件对天津于家堡交通枢纽站房贝壳形单层网壳在时域内进行三维风振响应分析，得到结构在典型风向角下各点的瞬态响应时程曲线及位移、内力风振系数，并对结构风振响应曲线进行傅里叶变换，得到结构相应的频域特征，为结构等效风荷载的确定提供有效指导。

［关键词］线性自回归滤波法; 风振系数; 风振响应; 贝壳形单层网壳

中图分类号：TU392.1      文献标识码：A      文章编号：1002-848X(2014)19-0012-04

Wind-induced response analysis on lattice shells of Yujiapu transportation junction station

Zhao Zhongwei1, Chen Zhihua1,2, Wang Xiaodun1, Liu Hongbo1, Xu Hao1

 (1 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 Key Laboratory of Coast Civil Structure and Safety of Ministry of Education, Tianjin University, Tianjin 300072, China)

Abstract: Based on the wind pressure coefficient obtained from wind tunnel test and the time history curve of wind load by linear filtering autoregressive method, the ANSYS software was used in three-dimensional wind-induced response analysis of single-layer lattice shells of Yujiapu transportation junction station in time domain to investigate wind-induced response of large-span spatial structures. The transient response time history curves in typical wind directions were obtained as well as displacement and internal force wind vibration coefficient. Frequency domain characteristics of the structure were obtained by fourier transfer on wind-induced response curves. It provides effective guidance for the decision of equivalent wind load.

Keywords: linear filtering autoregressive method; wind vibration coefficient; wind-induced response; shell shaped single-layer lattice shell

*天津市重大研究计划课题(11ZCZDSF04800)，中国博士后特别资助项目(2013T60253)。

通讯作者: 陈志华，博士，教授，博士生导师，Email: zhchen@tju.edu.cn。

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