【摘要】 选取合理的地震动输入模型,通过参数分析研究贵阳奥体中心体育场大悬挑预应力空间结构在多点输入的地震作用下的反应,比较非一致输入与一致输入下结构响应的差异。分析看出:(1)横向位移和竖向位移远大于纵向位移。位移主要还是由悬挑部分的竖向位移控制。(2)考虑行波效应后结构的地震反应增加。因此在大悬挑预应力空间结构分析中,行波效应的影响是不可以忽略的。更多还原

【Abstract】 The reasonable seismic wave models are selected.The responses of long cantilever prestressed spatial structure of the roof of the Palaestra of Guiyang Olympic Center to multi-point seismic input are investigated by parameter analysis.The difference between non-synchronous excitation and synchronous excitation is compared.The following results are concluded.(1) The transver displacements are larger than the vertical displacements.(2) The sesmic response of the structure increases when travelling wave effect is considered..Thus,in the analysis of long cantilever prestressed spatial structure s,the travelling wave effect can not be neglected.更多还原