摘要
本文指出了按现在通用的振型分解反应谱公式得到的地震荷载分布所存在的问题,即地震时地基是静止不动的,以及结构靠近地基处的最大加速度也远小于地震时地面运动最大加速度。本文也讨论了解决这些问题的方法。
In this paper, the problems in the seismic load distribution obtained by the modal analyses and response spectrum method, that is, the foundation is stationary in earthquake, and the maximum acceleration at the portion of a structure, closing to the foundation, is far less than the maximum acceleration of the foundation in earthquake, are investigated. To solve these problems, a correction term is introduced into these methods.
出处
《地震工程与工程振动》
CSCD
北大核心
2014年第2期252-258,共7页
Earthquake Engineering and Engineering Dynamics
关键词
振型分解
反应谱
地震荷载分布
地基
最大加速度
modal analyses
response spectrum
seismic load distribution
foundation
maximum acceleration
