钢筋混凝土墙-钢排架混合结构阀厅地震效应分析

Seismic Effect Study of RC Wall-Steel Hybrid Structure Valve Hall By Time-history Analysis

摘要:
目的   旨在研究钢筋混凝土墙-钢排架混合结构阀厅在地震作用下的荷载效应，为工程设计提供依据。
方法   进行了地震效应的弹性时程分析；选取了2条天然波并生成1条基于反应谱的人工波，采用Midas/gen软件进行计算，与振型分解反应谱法进行了结果对比。
结果   结果表明：对于这种不规则的混合结构，振型分解反应谱法可能对于地震效应的估计偏小。
结论   在高烈度地区，对于类似结构应采用时程分析法进行补充计算。

Abstract:
Introduction   In order to study the seismic effect of RC wall-steel hybrid structure valve hall and provide basis for engineering design, a time-history analysis is carried out.
Method   Two natural seismic waves and an artificial seismic waves based on response spectrum were adopted. The calculation was done via Midas/gen program.
Result   Comparison between time-history analysis and response spectrum method indicates that response spectrum method may underestimate the seismic effect of such irregular hybrid structure.
Conclusion   So for structures in high intensity earthquake area, time-history analysis is necessary in addition to response spectrum method.