地震波扭转加速度的计算及其在框架结构中的应用
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摘要
介绍了通过地震波的平动加速度分量获得地震波扭转加速度分量的原理,给出了应用Matlab软件开发出的计算程序,并应用该程序获得了EI Centro波及唐山地震宁河地震波扭转分量,将其与平动分量进行比较,给出它们之间的差别与联系.建立了框架结构空间有限元弹塑性分析模型,并对框架结构输入平动与扭转地震波分量,进行了弹塑性时程反应分析.结果表明,扭转地震动分量对框架结构的影响较大,设计时应充分加以考虑.
This paper introduced the principle of obtaining seismic wave's torsional acceleration component from it's translation component,and we gets the torsional component of EI Centro wave and Ninghe wave through the Matlab calculation program.By using ANSYS software,the spatial elastic-plastic analysis model of frame structure is established,and then,the translational and rotational component of the seismic wave was input to the frame structural model,and carried out the elastic-plastic time-history analysis.The results show that torsional component of seismic wave has a great influence on frame structure,it should be considered when designing.
引文
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