论文:2014,Vol:32,Issue(6):944-949
引用本文:
李涛, 张洵安. 非平稳随机地震动作用下MSCSS动力可靠性分析[J]. 西北工业大学学报
Li Tao, Zhang Xun'an. Dynamic Reliability Analysis of MSCSS Subjected to Nonstationary Random Earthquake Excitation[J]. Northwestern polytechnical university

非平稳随机地震动作用下MSCSS动力可靠性分析
李涛1,2, 张洵安3
1. 上海理工大学 环境与建筑学院, 上海 200093;
2. 同济大学 土木工程学院, 上海200092;
3. 西北工业大学 力学与土木建筑学院, 陕西 西安 710129
摘要:
采用正交展开方法模拟的地震动随机过程作为动力激励,基于极值概率密度演化方法,对一种新型复杂建筑结构——巨子型有控结构体系,进行了基于随机地震过程作用下的动力可靠性分析,求得MSCSS在单一失效准则及复杂失效准则下的可靠度。结果表明非平稳地震作用下巨子型有控结构体系可靠度高于巨型框架的动力可靠度,在多遇地震情况下比传统的巨型框架结构更为安全。
关键词:    动力可靠性    地震动随机过程    概率密度演化方法    巨子型有控结构体系   
Dynamic Reliability Analysis of MSCSS Subjected to Nonstationary Random Earthquake Excitation
Li Tao1,2, Zhang Xun'an3
1.School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China;
2.School of Civil Engineering, Tongji University, Shanghai 200092, China;
3.Department of Civil Engineering, Northwestern Polytechnical University, Xi'an 710129, China
Abstract:
We conduct the orthogonal expansion of the mega-sub controlled structural system (MSCSS) subjected tononstationary random earthquake excitation, which is a new complex architectural structure. Then we use the proba-bility density evolution method (PDEM) and the equivalent extreme value event to do the dynamic reliability analy-sis of the MSCSS and the mega frame structure (MFS) respectively,thus obtaining the reliability of the MSCSS un-der the simple failure criteria and complex failure criteria. The analysis results,given in Tables 1 and 2,and theircomparison show preliminarily that the earthquake resistance reliability of the MSCSS subjected to nonstationary ran-dom earthquake excitation is higher than that of the MFS subjected to the same and the MSCSS is safer thanthe MFS.
Key words:    architecture    earthquake effects    earthquake resistance    failure analysis    probability    reliability anal-ysis    seismic response    structural design    structures (built objects)    random earthquake excitation    probability density evolutionary method    mega-sub controlled structural system   
收稿日期: 2014-03-28     修回日期:
DOI:
基金项目: 国家自然科学基金(5126112037、51078311);教育部博士点基金(20096102110018)资助
通讯作者:     Email:
作者简介: 李涛(1974-),女,上海理工大学教师、同济大学博士后,主要从事结构非线性随机动力分析研究。
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