悬索结构随机风振反应分析  

Wind induced Random Response Analysis of Cable Roof Structures

作　　者：杨庆山[1,2] 沈世钊 

机构地区：[1]北方交通大学 [2]哈尔滨建筑大学

出　　处：《建筑结构学报》1998年第4期29-39,共11页Journal of Building Structures

摘　　要：本文简要介绍了悬索结构的刚度矩阵，讨论了脉动风荷的统计特性并将其数学模型建立成具有空间相关性的有色随机噪声过程，建立了用白噪声过程滤波生成脉动风荷的方法，利用随机振动离散分析方法计算随机风振反应，并对悬索结构随机风振反应进行了参数分析，给出了计算结果及由此得到的结论。This paper introduces the stiffness matrix of cable roof structures, the characteristics of the random wind excitations which are filtered white noises, and the method of how to generate a filtered white noise vector with spatial correlation using a white noise process. It also analyzes the wind induced random response of the cable roof structures using the discrete analysis method for random vibrations. Based on the numerical results, the variation of the wind induced random response with its parameters is discussed.

关 键 词：悬索结构 随机振动 离散分析 风振反应 滤波过程 

分 类 号：TU311.3[建筑科学—结构工程] TU351.1