摘要
为准确高效探究结构参数不确定性对无筋砌体结构抗震性能的影响,文中提出基于元效应的全局敏感性分析方法结合地震易损性分析。以4幢3~6层典型无筋砌体结构为例,进行阻尼比对地震易损性的敏感性分析并与局部敏感性分析结果对比。结果表明结构参数相关性对敏感性结果影响较小,在合理取样下可用局部敏感性分析替代全局敏感性分析以提高计算效率。
In order to accurately and efficiently explore the influence of structural parameter uncertainty on the seis⁃mic performance of unreinforced masonry structures,this paper proposes a global sensitivity analysis method based on the element effect combined with seismic vulnerability analysis.Taking four typical unreinforced masonry struc⁃tures of 3~6 floors as the cases,the sensitivity of seismic vulnerability of damping ratio is analyzed,the results from which are compared with the results of local sensitivity analysis.The results show that the correlation of structural parameters has little influence on the sensitivity results.The local sensitivity analysis can be used instead of the global sensitivity analysis to improve the computational efficiency under reasonable sampling.
作者
李怡熹
苏亮
王憬慧
LI Yixi;SU Liang;WANG Jinghui(Space Structures Research Center,Zhejiang University,Hangzhou 310058,China)
出处
《低温建筑技术》
2023年第6期38-43,共6页
Low Temperature Architecture Technology
关键词
无筋砌体结构
地震易损性分析
敏感性分析
元效应方法
参数不确定性
unreinforced masonry structure
seismic vulnerability analysis
sensitivity analysis
elementary effect
parameter uncertainty
