On the seismic behavior of multi-story frame structure excited by near-fault ground motions

机译：近断层地震动激发的多层框架结构抗震性能研究

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The seismic response process of a 12-story reinforced concrete frame structure under near-field pulse-like and non-velocity pulse ground motion has been investigated by comparison in the paper. It is analyzed on the influence of near-field pulse-like ground motion to the seismic response of the frame structure from elastic into elastic-plastic stage. The results show that the elastic seismic response of the structure is no significant difference under near-field pulse-like and non-velocity pulse ground motion. However, the structure response under near-field pulse-like is larger than under non-velocity pulse in elastic-plastic stage, particularly the top story displacement, the storey drift and the basic shear who will obviously increase. The response spectrum in current code cannot sufficiently represent the effects of elastic-plastic seismic response to the structure under near-field pulse-like ground motion. The near-field pulse-like ground motion contains generous low frequency components and the spectrum values attenuate slowly along with the period. Hence, the spectrum values are greater and it has distinct influence on long period structures than short period structures.

机译：通过比较研究了12层钢筋混凝土框架结构在近场脉冲状和非速度脉冲地震动作用下的地震反应过程。分析了近场脉冲状地震动对框架结构从弹性到弹塑性阶段的地震响应的影响。结果表明，在近场脉冲状和非速度脉冲地震动作用下，结构的弹性地震反应无明显差异。但是，在弹塑性阶段，近场脉冲状的结构响应要大于非速度脉冲的结构响应，尤其是顶层位移，层间位移和基本剪力会明显增加。当前代码中的响应谱不能充分表示近场脉冲状地面运动对结构的弹塑性地震响应的影响。近场脉冲状的地震动包含大量的低频分量，频谱值随周期缓慢衰减。因此，频谱值更大，并且与短周期结构相比，它对长周期结构具有明显的影响。

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《2011 Second International Conference on Mechanic Automation and Control Engineering》|2011年|p.5948-5951|共4页
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作者
Che Wei; Liu Qiang;
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正文语种
中图分类计算技术、计算机技术;
关键词
aseismatic performance; multistory frame structure; near-fault earthquake; velocity pulse;

机译：抗震性能多层框架结构近断层地震速度脉动;

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On the seismic behavior of multi-story frame structure excited by near-fault ground motions

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