| 考虑几何非线性的长输管线地震响应分析 |
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| 引用本文： | 杨竟南,余涛,雷凡.考虑几何非线性的长输管线地震响应分析[J].武汉水运工程学院学报,2012(4):812-815. |
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| 作者姓名： | 杨竟南 余涛 雷凡 |
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| 作者单位： | [1]武汉理工大学交通学院,武汉430063 [2]湖北省鄂州市公路管理局,鄂州436000 |
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| 基金项目： | 国家863计划项目资助（批准号：2007AAllZl07） |
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| 摘 要： | 采用时程分析法对地震作用下长输管线的动力响应进行分析,并探讨了管线悬跨段长度、地震强度、几何非线性等因素对其地震响应的影响.结果表明,地震作用下,管线的位移和应力响应曲线随时间的变化趋势基本一致;较长管线的振动周期较长;当地震强度较大、管线较长时,管线考虑大变形和不考虑大变形的地震响应存在较大差异.
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| 关 键 词： | 长输管线 几何非线性 地震响应 时程分析 |
Earthquake Response Analysis of Long-distance Pipeline with Geometrical Nonlinear |
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| Authors: | YANG Jingnan YU Tao LEI Fan |
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| Institution: | (School of Tansportation ,Wuhan University of Technology, Wuhan 43063, China)1 (Ezhou Bureau of Highway Management, Ezhou 436000, China)2) |
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| Abstract: | Time history method was used to study the dynamic response of long-distance pipeline under the action of earthquake. The factors of earthquake response of pipeline was discussed, including the length of pipeline, intensity of earthquake, geometrical nonlinear, etc. The results show that the var- iation trend of displacement response curves of pipeline consistent with the stress response curves. The vibration period of the longer pipeline is longer. These is great difference among the earthquake responses of long-distance pipeline consider or does not consider the large deformation effect, if the earthquake intensity is great. |
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| Keywords: | long-distance pipeline geometrical nonlinear earthquake response time history analysis |
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