| 近场脉冲地震下混凝土框架结构特殊反应 |
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| 引用本文： | 李桂萍,车伟. 近场脉冲地震下混凝土框架结构特殊反应[J]. 太原理工大学学报, 2011, 42(3): 258-262 |
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| 作者姓名： | 李桂萍 车伟 |
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| 作者单位： | 1. 山西省城乡规划设计研究院,太原,030002
2. 中国地质大学工程技术学院,北京,100083 |
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| 摘 要： | 针对某十二层钢筋混凝土框架结构,通过比较分析近场脉冲地震和不含速度脉冲地震作用下结构从弹性到弹塑性的地震反应过程,深入探讨了近场速度脉冲对结构弹性及弹塑性地震反应的影响。结果表明:近场脉冲地震与不含速度脉冲地震作用引起的结构弹性地震反应差别不大,含速度脉冲地震会引起较大的结构弹塑性变形反应,尤其是顶层位移、层间位移和基底剪力会明显增加;规范反应谱不能充分体现速度脉冲对结构弹塑性地震反应的影响;近场脉冲型地震含有较丰富的低频成分,谱值随周期增大衰减较慢,长周期的谱值较大,将对长周期结构的影响较短周期结构明显。
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| 关 键 词： | 近场地震 速度脉冲 钢筋混凝土框架结构 抗震性能 |
The Special Seismic Response of Reinforced Concrete Frame Structure under Near-field Pulse-like Ground Motion |
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| LI Gui-ping,CHE Wei. The Special Seismic Response of Reinforced Concrete Frame Structure under Near-field Pulse-like Ground Motion[J]. Journal of Taiyuan University of Technology, 2011, 42(3): 258-262 |
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| Authors: | LI Gui-ping CHE Wei |
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| Affiliation: | LI Gui-ping1,CHE Wei2(1.Shanxi Urban&Rutal Planning Design Institute,Taiyuan 030002,China,2.School of Engineering & Technology,China University of Geosciences,Beijing 100083,China) |
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| Abstract: | The seismic response process of a 12-story reinforced concrete frame structure under near-field pulse-like and non-velocity pulse ground motion was investigated by comparison.The influence of near-field pulse-like ground motion was analyzed on the seismic response of the frame structure from elastic into elastic-plastic stage.The results show that the elastic seismic response of the structure had no significant difference under near-field pulse-like and non-velocity pulse ground motion.However,the structure... |
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| Keywords: | near-field earthquake velocity pulse reinforced concrete frame structure aseismatic performance |
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