地下结构反应位移法中地基弹簧参数影响分析
Sensitivity Analysis of Foundation Spring Parameters in Reaction Displacement Method
武星星 1杨雨晨2
作者信息
- 1. 山西宏泽工程检测有限公司,山西 太原 030000
- 2. 山西消防技术站,山西 太原 030000
- 折叠
摘要
为探究地基弹簧参数变化对结构动力响应的影响,文中首先以动力时程法计算结果作为参考解,对比分析不同地基弹簧参数的求解形式,确定最优求解方法.在此基础上,分别对整体地基弹簧和结构不同位置弹簧参数进行调整,分析确定各参数对结构内力和位移响应的影响规律.结果表明,与顶面弹簧参数变化相比,侧面弹簧和底面弹簧参数变化对结构内力和变形影响较大,整体来看,结构各位置弹簧参数的数值增大100%～400%,产生的结构变形和关键位置内力变化约为16%～43%.
Abstract
In order to explore the influence of the change of foundation spring parameters on the dynamic response of the structure,this paper firstly takes the calculation results of the dynamic time history method as a reference solution,compares and analyzes the solution forms of dif-ferent foundation spring parameters,and determines the optimal solution method.On this basis,the parameters of the overall foundation spring and the spring at different positions of the structure were adjusted,and the influence of each parameter on the internal force and displacement response of the structure was analyzed and determined.The analysis results show that compared with the change of the top spring parameters,the changes of the side springs and the bottom spring parameters have a greater impact on the internal force and deformation of the structure,and on the whole,the values of the spring parameters at each position of the structure increase by 100%～400%,and the structural deforma-tion and the internal force changes at the key positions are about 16%～43%.
关键词
地下结构/抗震分析/反应位移法/动力响应Key words
Underground structures/Seismic analysis/Reaction displacement method/Power response引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据