地震波频率对平面框架通波效应的影响

Wang Yingli, Liu Tielin, Liu Hong, Cui Xu
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引用次数: 0

摘要

以三跨六层钢筋混凝土结构平面框架结构为研究对象,研究框架结构在地震反应中是否应考虑波束效应。研究了地震波频率和穿越效应对结构的影响因素。采用Midas Gen软件分别计算了III类场地地震波下框架结构在通道激励和均匀激励下的地震反应。并与均匀激励下的柱剪力计算结果进行了比较。对地震波的频率进行了分析。数值计算结果表明,波浪通道效应使平面框架结构面对地震波的第一层柱剪力显著增大。对于具有过波效应的地震波,地震波频率幅值谱的主峰出现在低频域。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Influence of Seismic Wave Frequency on Wave Passage Effect of Plane Frame
The plane frame structure of three-span, six-story reinforced concrete structure, is adopted to study whether wave passage effect should be considered in the seismic responses of frame structures or not. The influence factors of seismic wave's frequency and wave passage effect on the structure are studied. The earthquake responses of the frame structure to wave passage excitations and uniform excitations are computed respectively for the class III site seismic wave by using Midas Gen software. The results of column shear forces obtained from the wave passage excitations are compared with those of the uniform excitations. And the frequencies of seismic waves are analyzed. Numerical results showed that wave passage effect caused the shear force of the first-story column facing the seismic wave to increase remarkably for the plane frame structures. For the seismic waves with wave passage effect, the main peaks of frequency amplitude spectrum of seismic wave arise in low frequency domain.
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