论文部分内容阅读
基于无附加阻尼器巨子型有控结构体系(Mega-Sub Controlled Structure System,即MSCSS)在地震作用下的弹塑性时程分析,从不同角度给出了不同的附加阻尼器布置方案。采用Hilbert-Huang变换(HHT)法获得实测地震波的渐进功率谱,运用非平稳三角级数法获得多条人工波,并选取多条反应谱相近的人工波作为随机过程的样本库,将基于概率密度演化方程的可靠度分析方法用于不同附加阻尼器布置方案下的MSCSS,并与巨型框架结构进行了比较。研究表明:MSCSS的可靠度优于巨型框架结构很多,附加阻尼器布置方案对MSCSS的可靠度影响很大,将附加阻尼器分别布置在子结构层间位移最大层和位移最大层时MSCSS的抗震性能最好。
Based on the elasto-plastic time-history analysis of Mega-Sub Controlled Structure System (MSCSS) under earthquake action, different additional damper arrangements are given from different angles. The Hilbert-Huang transform (HHT) method was used to obtain the asymptotic power spectrum of the observed seismic wave. A number of artificial waves were obtained by non-stationary trigonometric series method. Several artificial waves with similar response spectra were selected as the sample database of stochastic processes. The reliability analysis method of density evolution equation is applied to MSCSS under different additional damper arrangements and compared with the mega frame structure. The results show that the reliability of MSCSS is superior to that of the mega-frame structure, and the additional damper arrangement has a great influence on the reliability of MSCSS. When the additional dampers are arranged at the maximum displacement and the maximum displacement, The best performance.