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Dynamic reliability analysis and optimization of mega-sub controlled structure system under non-stationary seismic action
Author(s): 
Pages: 518-525
Year: Issue:  4
Journal: Journal of Vibration Engineering

Keyword:  seismic structuremega-sub controlled structure system (M SCSS)non-stationary seismic actiondynamic reliabilitysize optimization;
Abstract: 基于巨子型有控结构体系(Mega-sub controlled structure system,即MSCSS)的组装原理,从抗震设防的角度提出了“有区别的等可靠度优化准则”.采用Hilbert-Huang变换(HHT)法合成非平稳人工地震波,将基于概率密度演化理论的动力可靠度分析方法用于MSCSS,编制了MAT LAB与SAP2000的接口程序,以所提出的优化准则对非平稳地震作用下MSCSS进行了尺寸优化,并比较了优化前后的结果.研究表明:对MSCSS进行优化是有必要的,MSCSS优化后的可靠度分布比优化前更为合理,且响应控制能力也得到了提高.
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