自立式微波通讯塔在复合地震动作用下的随机反应分析

Random Response Analysis for Microwave Communication Tower to Multiple Seismic Excitations

本文建立了自立式微波通讯塔在复合地震动作用下的振动方程,给出了计算弹性结构反应统计量的有关公式。应用给出的地震动转动分量的随机模型及修正的Kanai-Tajimi 平动模型,对山西某地的微波通讯塔进行了平稳随机反应分析,得到了一些对实际工程有意义的结果。最后对某些问题进行了讨论。

In this paper,the equation of vibration for the self-supporting microwave communication tower sub-jected to multiple seismic inputs is established,and some formulas about the statistics of random responseof tower are given.The random response analysis for microwave communication tower in Shanxi provinceis completed by use of the rotational power spectrum of seismic ground motion given and modified Kanai-Tajimi's translational power spectrum. Based on the numerical results,some conclusions with practicalsignificance are drawn.Finally,some problems are discussed.