【摘要】 在采用虚拟激励法的理论基础上,采用改进的C-P随机地震动模型对周边双层中部单层球面网壳结构在多点地震激励条件随机地震响应进行分析,并编制了相应计算程序。通过对算例的计算分析指出:一致性输入地震响应小于多点地震输入,视波速的改变对网壳的影响很小,可以忽略。它因此为工程设计提供了理论参考。更多还原

【Abstract】 Based on the theory of Pseudo Excitation Method(PEM),the stochastic seismic responses of the single-double layer reticulated dome structures under multi-support earthquake inputs are analyzed by using the updated random Clough-Penzien Model.And the corresponding analysis program is compiled.The results indicate that the seismic response under single-support earthquake inputs is less than which under multi-support earthquake inputs.And the influence of the equivalent phase velocity of the earthquake wave on the reticulated dome structure is little,so it need not to be considered.This paper also provides useful reference to the seismic design of reticulated dome structures.更多还原