【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。更多还原

【Abstract】 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.更多还原