| 大型渡槽的竖向地震效应分析 |
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| 引用本文： | 李遇春,楼梦麟,周成.大型渡槽的竖向地震效应分析[J].地震工程与工程振动,2008,28(2):102-107. |
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| 作者姓名： | 李遇春 楼梦麟 周成 |
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| 作者单位： | 同济大学,结构工程与防灾研究所,土木工程防灾国家重点实验室,上海,200092 |
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| 基金项目： | 国家自然科学基金项目(50279031) |
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| 摘 要： | 基于流体的位移有限元模式,借助于Ansys程序,考虑流体与结构之间的相互作用(作滑动边界处理),对3种型式的渡槽结构竖向地震效应进行了时程与反应谱分析。计算结果具有较好的精度,满足工程要求。本文的方法也可直接用于大型渡槽的水平地震效应分析。对于不同结构型式的渡槽,在七度抗震设防时,建议适当考虑竖向地震效应。
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| 关 键 词： | 大型渡槽 竖向地震效应 时程分析 反应谱 Ansys程序 |
| 文章编号： | 1000-1301(2008)02-0102-06 |
| 修稿时间： | 2007年1月12日 |
Analysis of vertical seismic effects for large-scale aqueduct bridges |
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| LI Yuchun,LOU Menglin,ZHOU Cheng.Analysis of vertical seismic effects for large-scale aqueduct bridges[J].Earthquake Engineering and Engineering Vibration,2008,28(2):102-107. |
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| Authors: | LI Yuchun LOU Menglin ZHOU Cheng |
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| Abstract: | With the aid of the Ansys code,the vertical seismic effects of three kinds of aqueduct bridges were analyzed with time-history and response-spectrum methods.The displacement-based finite element of fluid is applied to the analysis,and the fluid-structure interaction on interface is considered.The computational result has a good precision that satisfies the need of practical engineering.The method of this paper can also be directly used in the analysis of horizontal seismic effects.For the grade 7 of earthquake intensity,the vertical seismic effects are suggested to be considered in the structural designs. |
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| Keywords: | large-scale aqueduct bridge vertical earthquake effect time-history analysis response spectrum Ansys code |
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