摘要
采用首次超越破坏机制,定义结构层间位移为极限状态控制指标,确定了基于概率密度演化方法的巨-子型有控结构体系的抗震动力可靠度的计算方法;基于可靠度并结合"等可靠度准则"对其进行优化。编制SAP2000与MATLAB接口程序将SAP2000中的分析结果带入到MATLAB中进行概率密度演化分析。结果表明:巨-子型有控结构在弹塑性阶段依然有很好的响应控制效果;巨–子型有控结构比巨型框架结构具有更高的抗震可靠度;经过优化后MSCSS的响应控制能力及可靠度都得到了显著提高。
The first-passage failure mechanism is adopted and the damage limits state of structure is defined using storey drift; the computational method of seismic resistance reliability of Mega-Sub Controlled Structural System （MSCSS） with the probability density evolution principle is represented. An approach of the reliability-based optimization for MSCSS is presented based on ＂Equi-reliability＂ criteria. The analysis results are disposed in the MATLAB software using the SAP2000 Application Programming Interface （API） ; the probability density evolution analysis for stochastic seismic response of MSCSS is proceeded. The results indicate that within the elasto- plastic state, MSCSS still have good response control results; compared to the Mega-Frame Structure （MF）, MSCSS present better seismic reliability; after optimization process, the control effectiveness and the reliability of MSCSS have greatly improved.
出处
《工程抗震与加固改造》
北大核心
2012年第4期17-22,27,共7页
Earthquake Resistant Engineering and Retrofitting
基金
国家自然科学基金(51078311)
西北工业大学基础研究基金(JC200814)
关键词
巨-子型有控结构体系
抗震动力可靠度
概率密度演化
等可靠度
优化
mega-sub controlled structural system
dynamic reliability for resisting seismic loading
probability density evolution
equi- reliability criteria
optimization
