| 界面含椭圆孔的地下结构瞬态动力分析 |
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| 引用本文： | 纪菲,孙文,车向东. 界面含椭圆孔的地下结构瞬态动力分析[J]. 市政技术, 2005, 23(3): 141-145 |
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| 作者姓名： | 纪菲 孙文 车向东 |
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| 作者单位： | 北京市市政专业设计院有限责任公司,北京,100037 |
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| 摘 要： | 用波动有限元法对地下隧道工程的椭圆型孔洞进行了瞬态分析,并分析了不同土质条件下动应力集中问题; 建立了有限元模型,利用有限元计算软件ANSYS,对瞬态SH波作用下的地下结构中孔洞边缘动应力集中系数进行计算,对结果进行了讨论。
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| 关 键 词： | 地下结构 结构分析 有限元法 波动有限元法 瞬态分析 介质界面 ANSYS程序 |
| 文章编号： | 1009-7767(2005)03-0141-05 |
| 修稿时间： | 2004-10-20 |
Transient Dynamic Analysis of An Underground Structure with Ellipse Cavities Interface |
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| JI Fei,SUN Wen,CHE xiang-dong. Transient Dynamic Analysis of An Underground Structure with Ellipse Cavities Interface[J]. Municipal Engineering Technology, 2005, 23(3): 141-145 |
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| Authors: | JI Fei SUN Wen CHE xiang-dong |
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| Abstract: | A tunnel engineering with ellipse cavities was analyzed in transient dynamic stress by wave finite element method, and the issue of dynamic stress concentration in different soil conditions was also analyzed. The model of wave finite element was founded , and the dynamic stress concentration factor at the edge of cavity under the action of transient SH-wave was calculated by ANSYS soft ware, and the result was also discussed. |
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| Keywords: | uderground structure structural analysis finite element method wave finite element method transient analysis medium interface ANSYS program |
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