基于多阵型反应谱法下的减隔震桥梁迭代计算分析
Iterative calculation analysis of seismic isolation bridges based on multi array response spectrum method
周路瑶1
作者信息
- 1. 中咨华科交通建设技术有限公司,北京 100195
- 折叠
摘要
减隔震桥梁可采用多阵型反应谱法进行抗震分析.由于减隔震装置的非线性特性导致初始分析时结构的位移响应量是未知的,因此需要迭代计算.以某项目的4跨连续现浇箱梁为例,基于多阵型反应谱法下利用midas Civil对减隔震桥梁进行迭代计算分析,给出满足规范要求的迭代次数,并通过与非减隔震桥梁对比分析,检验减隔震装置的效果.
Abstract
Seismic analysis of vibration-damped bridges can be performed by the multi array response spectrum method.Due to the nonlinear characteristics of seismic isolation devices,the displacement response of the structure during initial analysis is unknown,so iterative calculations are required.Taking a 4-span continuous cast-in-place box girder on a certain project as an example,based on the multi array response spectrum method,midas Civil is used to iteratively calculate and analyze the seismic isolation bridge,The number of iterations that meet the requirements of the specifications is given,and the effectiveness of the seismic isolation device is tested by comparing and analyzing it with non seismic isolation bridges.
关键词
减隔震桥梁/多阵型反应谱法/迭代Key words
seismic isolation bridge/multi array response spectrum method/iteration引用本文复制引用
出版年
2024
NETL
NSTL
万方数据