基于等效线性化的动力时程分析简便方法
A Simple Method for Dynamic Time History Analysis Based on Equivalent Linearization
童桐1
作者信息
- 1. 苏州科技大学土木工程学院,江苏苏州 215011
- 折叠
摘要
针对复杂场地,一维等效线性化不能很好地反映场地地形特征及土体的非线性特征,此时需要进行二维线弹性分析,文章针对二维线弹性分析中土体的参数取值提出了一种新的方法.为验证本文方法对于二维复杂场地条件的适用性,根据多个钻孔与日本小田原真实场地条件建立一维频域、一维时域和二维时域模型并进行分析对比,结果验证了本文方法在二维复杂场地条件下的可行性.
Abstract
For complex sites,one-dimensional equivalent linearization can not reflect the terrain characteristics of the site and the nonlinear characteristics of the soil.In this case,two-dimensional linear elastic analysis is needed.In this paper,a new method is proposed for the parameter value of soil in two-dimensional linear elastic analysis.In order to verify the applicability of the proposed method for two-dimensional complex site conditions,one-dimensional frequency domain,one-dimensional time domain,and two-dimensional time domain models were established based on multiple boreholes and real site conditions in Odawara,Japan.The results verified the feasibility of the proposed method under two-dimensional complex site conditions.
关键词
等效线性化/场地地震反应/复杂场地/土体参数/Rayleigh阻尼Key words
equivalent linearization/site seismic response/complex sites/soil parameter/Rayleigh damping引用本文复制引用
出版年
2024
NETL
NSTL
万方数据