| 汶川地震框架柱震害的初步分析 |
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| 引用本文： | 夏珊,刘爱文.汶川地震框架柱震害的初步分析[J].震灾防御技术,2008,3(3):237-242. |
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| 作者姓名： | 夏珊 刘爱文 |
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| 作者单位： | 中国地震局地球物理研究所,北京,100081 |
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| 基金项目： | 中国地震局地球物理研究所中央级公益性科研院所基本科研业务专项项目 |
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| 摘 要： | 按照框架结构抗震概念设计的要求，结构应具有多道抗震防线，其中一个原则是“强柱弱梁”。但是在汶川地震中，框架结构柱的破坏明显重于梁，柱端与节点的破坏较为突出，即所谓的“强梁弱柱”结构很普遍。在对地震破坏区实地考察的基础上，对框架结构梁柱节点处的破坏以及柱顶、柱脚和柱身的震害进行分类，分析了各种震害的原因，总结了框架结构中框架柱的破坏特点，从期为将来框架柱的抗震设计提供震害经验。
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| 关 键 词： | 汶川地震 框架柱 结构震害 |
| 收稿时间： | 2008/8/25 0:00:00 |
Preliminary Analysis of the Frame Column Damage in Wenchuan Earthquake |
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| Xia Shan and Liu Aiwen.Preliminary Analysis of the Frame Column Damage in Wenchuan Earthquake[J].Technology for Earthquake Disaster Prevention,2008,3(3):237-242. |
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| Authors: | Xia Shan and Liu Aiwen |
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| Institution: | Institute of Geophysics, China Earthquake Administration, Beijing 100081, China;Institute of Geophysics, China Earthquake Administration, Beijing 100081, China |
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| Abstract: | According to the seismic design code of China, the column of a frame structure should be stronger than the beam under the ground motion. However, in the practice of field investigation of Wenchuan earthquake, we found that the column was usually damaged but the beam kept intact. Based on the site survey of Wenchuan earthquake, the damage of frame column was summarized, including the damage of beam-column joints, column caps, column feet and column shaft. Finally, the performance of the frame structure is preliminarily analyzed in this paper, which will be valuable for anti-seismic design in future. |
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| Keywords: | Wenchuan earthquake Frame column Earthquake damage |
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