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| 软土对基岩峰值加速度的放大作用 | |
| 引用本文： | 刘峥,沈建文,石树中,余湛.软土对基岩峰值加速度的放大作用[J].同济大学学报(自然科学版),2009,37(5). |
| 作者姓名： | 刘峥 沈建文 石树中 余湛 |
| 作者单位： | 1. 同济大学,土木工程防灾国家重点实验室,上海,200092;上海市地震局,上海,200062 2. 上海市地震局,上海,200062 3. 浙江省地震局,浙江,杭州,310013 4. 同济大学,土木工程防灾国家重点实验室,上海,200092 |
| 基金项目： | 浙江省重点科研社会发展资助项目 |
| 摘 要： | 以美国西部地震观测数据资料为基础,分别建立了基岩和深冲积层场地的峰值加速度衰减规律,探讨了深冲积层对基岩峰值加速度的放大作用.结果表明,美国2003版NEHRP规范对D类和E类场地的放大作用可能明显高估. |
| 关 键 词： | 地震动 深冲积层 衰减规律 峰值加速度 放大作用 |
Soft Soil Amplification of Peak Ground Acceleration |
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| LIU Zheng,SHEN Jianwen,SHI Shuzong and YU Zhan.Soft Soil Amplification of Peak Ground Acceleration[J].Journal of Tongji University(Natural Science),2009,37(5). | |
| Authors: | LIU Zheng SHEN Jianwen SHI Shuzong and YU Zhan |
| Institution: | State Key Laboratory for Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China;Earthquake Administration of Shanghai Municipality,Shanghai 200062,China;Earthquake Administration of Shanghai Municipality,Shanghai 200062,China;Earthquake Administration of Zhejiang Province,Hangzhou 310013,China;State Key Laboratory for Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China |
| Abstract: | Based on the earthquake acceleration records at deep alluvium sites and rock sites in the Western United States,the attenuation laws of peak ground acceleration at deep alluvium sites and rock sites are obtained respectively,and amplification effects of deep alluvium sites are discussed.The results show that the amplification effects for Site Class D and E are overestimated in the 2003 NEHRP. |
| Keywords: | ground motion deep alluvium attenuation law peak ground acceleration amplification effect |
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