| 邹立华,赵人达.土-基础相互作用隔震体系地震随机响应分析[J].计算力学学报,2005,22(2):252~256 |
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| 土-基础相互作用隔震体系地震随机响应分析 |
| Analysis of the random responses to earthquake of the subsoil-base-interaction isolated system |
| 修订日期：2003-06-11 |
| DOI：10.7511/jslx20052051 |
| 中文关键词: 隔震体系 随机响应分析 相互作用 基础 平稳随机过程 隔震结构 弹性半空间 粘性阻尼器 各向同性 地震激励 分析结果 直接影响 地基土 模拟 |
| 英文关键词:soil-structure,isolation,random response |
| 基金项目: |
| 邹立华 赵人达 |
| [1]西南交通大学,四川成都610031／／兰州交通大学土木工程学院,甘肃兰州730070 [2]西南交通大学,四川成都610031 |
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| 中文摘要: |
| 视地基土为各向同性的弹性半空间，用弹簧-粘性阻尼器模拟土对结构的影响，将地震激励模拟为平稳随机过程，对基础隔震体系的随机响应进行了分析。分析结果表明，地基土的性质对隔震结构有直接影响，但其影响比非隔震结构小得多。 |
| 英文摘要: |
| With the impact of subsoil on structure modeled by a spring-viscous restraint, the random responses to earthquake of the base-isolated system is analyzed in this paper, with the earthquake excitation simulated as a smooth random process and the subsoil taken as an isotropic elastic semi-space. The influences of the site soil and damping of the isolating floor on structural responses to earthquake are discussed respectively. The result indicates that the properties of the subsoil have a direct impact on the isolated system, which is much smaller than that on the non-isolated system. |
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