• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Earthquake Engineering >ROCKING ISOLATION OF A TYPICAL BRIDGE PIER ON SPREAD FOUNDATION
【24h】

ROCKING ISOLATION OF A TYPICAL BRIDGE PIER ON SPREAD FOUNDATION

机译：典型桥墩在扩展基础上的摇摆隔离

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

It has been observed that after some earthquakes a number of structures resting on spread footings responded to seismic excitation by rocking on their foundation and in some cases this enabled them to avoid failure. Through application to a standard bridge supported by direct foundations, this paper discusses the major differences in response when foundation uplift is taken into consideration. Special focus is given on the modifications of rocking response under biaxial and triaxial excitation with respect to uniaxial excitation. It is found that inelastic rocking has a significant isolation effect. It is also shown that this effect increases under biaxial excitation while it is less sensitive to the vertical component of the earthquake. Finally, parametric analyses show that the isolation effect of foundation rocking increases as the size of the footing and the yield strength of the underlying soil decreases.
机译：已经观察到，在发生一些地震后，许多立足于地面的结构通过在其基础上摇摆来响应地震激励，在某些情况下，这使它们避免了破坏。通过应用到由直接基础支撑的标准桥梁中，本文讨论了考虑基础抬升时响应的主要差异。特别关注在双轴和三轴激发下相对于单轴激发的摇摆响应的变化。发现非弹性摇摆具有显着的隔离作用。还表明，这种影响在双轴激励下增加，而对地震的垂直分量不那么敏感。最后，参数分析表明，随着基脚尺寸的增加和下层土体的屈服强度的减小，地基晃动的隔离效果会增强。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号