| 汶川地震框架柱震害的初步分析 |
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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 |
| DOI：10.11899/zzfy20080306 |
| 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DQJB06A01资助 |
| 收稿日期：2008-08-25 |
| 作者简介：夏珊，女，生于1984年，在读硕士生，主要研究领域：防灾减灾与防护工程。E-mail：xiashan101@163.com |
| 通讯作者： |
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| Preliminary Analysis of the Frame Column Damage in Wenchuan Earthquake |
| 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. |
| Keywords： Wenchuan earthquake Frame column Earthquake damage |
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