| 姚安6.5级地震中房屋震害差异的原因分析 |
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| 引用本文： | 杨向东,安晓文,颜山力.姚安6.5级地震中房屋震害差异的原因分析[J].地震研究,2001,24(2):156-161. |
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| 作者姓名： | 杨向东 安晓文 颜山力 |
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| 作者单位： | 1. 云南省地震局,
2. 中国人民银行楚雄州支行, |
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| 摘 要： | 牟定、大姚、南华三县人民银行办公楼为相同的、同期竣工的2～5层钢筋砼框架结构建筑，原设计梁截面配筋满足设计荷载要求。在2000年1月15日姚安6.5级地震中同处在等烈度线Ⅵ度区内，受到的破坏却有显差异，破坏程度并不随震中距增大而渐轻，反之有随震中距增大破坏还更重的情况。指出，主要原因在于场地条件不同，其依据是：在相同地震动力作用下，三个场地的地震反应不同，地表加速度峰值愈大破坏愈重。
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| 关 键 词： | 钢筋砼框架结构 地表加速度峰值 场地条件 姚安地震 房屋 震害 |
Cause Analysis of Damaging Difference of Building in the Yao'an M6.5 Earthquake |
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| Yang Xiangdong,An Xiaowen.Cause Analysis of Damaging Difference of Building in the Yao''''an M6.5 Earthquake[J].Journal of Seismological Research,2001,24(2):156-161. |
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| Authors: | Yang Xiangdong An Xiaowen |
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| Abstract: | The office buildings of China People's Bank in Muding, Dayao andNanhua had same constructions with steel concrete and finished at same time. The originally designed section of roof beam was satisfied with loading need. Those buildings were located in same intensity Ⅵ in the Yao'an M6.5 earthquake on January 15,2000, however, the damaging degrees were quite different. Their damages were not decreased with the epicentral distance increasing, but heavier with the distance. It is pointed out that the main cause is different site conditions. The evidence is that the seismic responses were different at the 3 sites under the function of same seismic vibration. The bigger of the peak value of the ground acceleration the heavier the damage. |
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