| 浅埋地下结构和土层在动荷载作用下的反应分析 |
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| 引用本文： | 边金,陶连金,郭军.浅埋地下结构和土层在动荷载作用下的反应分析[J].世界地震工程,2005,21(4):49-53. |
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| 作者姓名： | 边金 陶连金 郭军 |
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| 作者单位： | 北京工业大学建筑工程学院,北京,100022 |
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| 基金项目： | 国家自然科学基金资助项目（40272113）、北京市科技新星计划、北京市教委发展项目和北京工业大学研究生科技基金资助课题（YKJ-2003-34） |
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| 摘 要： | 在日本阪神大地震中，地下结构遭到了严重破坏。正确分析地下结构的地震反应，提出合理的抗震设计和安全性评价方法十分必要。用FLAC v4．0对某地的一个地铁车站进行了动力分析，发现随着埋深变浅，土体的加速度时程曲线表现出以某一确定的频率振动，该振动频率与模型的基频相近；位移在正方向和负方向的振幅都随埋深的增加而变小：在地表处达到最大值。一些认识和结论对于正确的进行抗震设计有指导意义。
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| 关 键 词： | FLAC 时程曲线 地震波 地震反应 |
| 文章编号： | 1007-6069(2005)04-0049-05 |
| 收稿时间： | 2005-04-11 |
| 修稿时间： | 2005-08-25 |
Dynamic response of the underground structure and soil |
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| BIAN Jin,TAO Lian-jin,GUO Jun.Dynamic response of the underground structure and soil[J].World Information On Earthquake Engineering,2005,21(4):49-53. |
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| Authors: | BIAN Jin TAO Lian-jin GUO Jun |
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| Institution: | College of Architecture and Civil Engineering, Beijing Polytechnic University, Beijing 100022, China |
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| Abstract: | The Great Hanshin earthquake in Japan was heavily brought about serious damage to some underground reinforced concrete structures.It is thus important for the designes to understand dynamic response and possible damage of the underground structures caused by earthquake.The dynamic analysis of a underground station is conducted using the latest FLAC model with dynamic option,and based on the computed results of the station the following conclusions can be drawn: with the decrease of depth,the acceleration of a point in soil changes with a certain frequency,which nearly equals to the basic frequency of the model,the amplitude of the displacement-time history in both the positive and negative direction increases with the decrease of depth,and the amplitude reaches maximum at the ground surface. |
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| Keywords: | FLAC time history seismic wave dynamic response |
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