【摘要】 总结分析国内外地震波研究成果,结合中国相关规范,提出地震波选取原则:根据结构动力特性、反应谱曲线初选地震波,对结构进行弹性时程分析;然后对其分析结果依据振型分解反应谱法基底剪力的"下限"要求以及波的离散性筛选地震波,确定动力弹塑性时程分析的地震波;最后对弹塑性分析计算过程及结果进行分析判断,确保分析结果真实可靠.理论分析和具体工程实例表明,利用这一原则选取地震波,概念比较清晰,实施相对简单,有利于在结构动力弹塑性分析过程中迅速选择合适的地震波.更多还原

【Abstract】 By means of summarizing and analyzing the investigation results of seismic wave domes and abroad and incorporating with relevant codes,the selection principle of earthquake wave was presented and preselected according to structural dynamic property and response spectrum curve to carry out the structural elastic time history analysis.Then based on the analysis result,the earthquake wave was screen-selected based on the bottom shear limit requirement of mode-superposition response spectrum method and discreteness of the wave and the seismic wave of dynamic elasto-plastic time history analysis was determined.Finally,the elasto-plastic analysis calculation process and its result were analyzed and determined to ensure the reliability and validity of the result.It was shown by theoretical analysis and specific examples in engineering that the concept of seismic wave selection with the proposed principle was clear,its implementation was simple,and was beneficial to select proper waves quickly in structural elasto-plastic dynamic analysis.更多还原