| 场地条件对地面加速度峰值离散性的影响研究 |
| |
| 引用本文： | 李建亮,亢川川,何玉林,梁明剑.场地条件对地面加速度峰值离散性的影响研究[J].震灾防御技术,2011,6(4):416-426. |
| |
| 作者姓名： | 李建亮 亢川川 何玉林 梁明剑 |
| |
| 作者单位： | 四川省地震局,成都,610041 |
| |
| 基金项目： | 地震行业科研专项项目(201008006)资助 |
| |
| 摘 要： | 本文在研究了数百个工程场地钻孔资料的基础上,选取和构造了209个有代表性的典型场地剖面,利用目前工程上广泛应用的一维等效线性化波动方法,进行了6种输入强度下(30gal、50gal、100gal、150gal、200gal、300gal)的场地土层地震反应分析.在计算时对每种工况均采用9条互不相关的基岩加速度时程作为输入地震波,同时用均方差来定量评估所得到的地面加速度峰值的离散性,发现计算结果离散性很大,其最大均方差为0.206,最小均方差为0.138,且离散性随基岩地震动输入强度的增大而变大,随场地类别的变差也变大.
|
| 关 键 词： | 场地条件 地震反应 地面加速度峰值 离散性 |
| 收稿时间： | 2011/4/18 0:00:00 |
Effects of Site Condition on Discreteness of Ground Peak Accelerations |
| |
| Li Jianliang,Kang Chuanchuan,He Yulin and Liang Mingjian.Effects of Site Condition on Discreteness of Ground Peak Accelerations[J].Technology for Earthquake Disaster Prevention,2011,6(4):416-426. |
| |
| Authors: | Li Jianliang Kang Chuanchuan He Yulin and Liang Mingjian |
| |
| Institution: | Li Jianliang,Kang Chuanchuan,He Yulin and Liang Mingjian (Earthquake Administration of Sichuan Province,Chengdu 610041,China) |
| |
| Abstract: | Based on hundreds of actual engineering site profiles,we select and build 209 significant site profiles.The ground peak accelerations of constructions with different soil layers are calculated under six different input intensities (30gal, 50gal, 100gal, 150gal, 200gal, 300gal) through the equivalent linearization and wave propagation method for the earthquake response analysis of soil layers.Some more serious discreteness is showed in the seismic peak ground analysis.The maximum mean-square deviation of sei... |
| |
| Keywords: | Site condition Earthquake response Ground peak acceleration Discreteness |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《震灾防御技术》浏览原始摘要信息 |
| 点击此处可从《震灾防御技术》下载免费的PDF全文 |
|
