| 大跨径斜拉桥动力分析基准有限元模型研究 |
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| 引用本文： | 李岩,盛洪飞,黄新艺.大跨径斜拉桥动力分析基准有限元模型研究[J].公路交通科技,2006,23(9):58-62. |
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| 作者姓名： | 李岩 盛洪飞 黄新艺 |
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| 作者单位： | 1. 哈尔滨工业大学,交通科学与工程学院,黑龙江,哈尔滨,150090;黑龙江大学,建筑工程学院,黑龙江,哈尔滨,150086
2. 哈尔滨工业大学,交通科学与工程学院,黑龙江,哈尔滨,150090 |
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| 摘 要： | 针对大跨径斜拉桥的动力分析特点,研究了基准有限元模型的建立过程和修正策略。通过讨论了恒载初应力效应和几何非线性对大跨斜拉桥动力特性的影响,提出了基于敏感性分析和优化设计原理的有限元模型参数修正方法。并结合工程脉动试验对模型进行修正,结果证明,该方法具有很好的有效性和实用性。
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| 关 键 词： | 大跨径斜拉桥 有限元模型 模型修正 |
| 文章编号： | 1002-0268(2006)09-0058-05 |
| 收稿时间： | 2005-05-16 |
| 修稿时间： | 2005年5月16日 |
Research on the Baseline Finite Element Model for Dynamic Analysis of Long Span Cable-stayed Bridges |
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| LI Yan,SHENG Hong-fei,HUANG Xin-yi.Research on the Baseline Finite Element Model for Dynamic Analysis of Long Span Cable-stayed Bridges[J].Journal of Highway and Transportation Research and Development,2006,23(9):58-62. |
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| Authors: | LI Yan SHENG Hong-fei HUANG Xin-yi |
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| Institution: | 1. School of Science and Engineering on Communication, Harbin Institute of Technology, Heilongjiang Harbin 150090, China 2. College of Architecture Engineering, Heilongjiang University, Heilongjiang Harbin 150086, China |
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| Abstract: | Building and updating process and considerations of baseline finite element model(FEM) for the long span cable-stayed bridges are studied and presented based on the bridge dynamic analysis characteristics.The effect of initial stress and geometrical non-linearity on dynamic characteristics of long span cable-stayed bridges is analyzed.bringing forward the parameter updating method for the finite element model based on sensitivity analysis and optimization design principle.The calculation results prove the validity and practicability of the updated method. |
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| Keywords: | long span cable-stayed bridges finite element model model updating |
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