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中文摘要：
运用频域法分析了双层圆柱面网壳和球面网壳两种典型大跨度空间结构在常见工况下的风振响应,研究了参振模态的合理截取,提出了位移和内力一致风振系数的表达式,考察了对风振系数的变化起关键作用的结构和环境的参数和因素。在两类网壳结构的跨度、长宽比、矢跨比、地貌类别等主要参数的常见变化范围内,进行大规模算例计算,定量分析对结构风振系数的影响,并在此基础上归纳出风振系数的实用公式,以供工程设计参考.
英文摘要：
The wind-induced response of double-layer cylindrical and spherical grid structures under frequent work conditions is analyzed via frequency-domain method in this paper.A formula of wind-induced vibration factor consistent in displacements and inter forces is proposed by investigating the interception of participated vibration modes.Though a large-scale calculation of practical models with their spans,ratios of length to width,ratios of rise to span and surface features varied in practical ranges,the struct...
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