| 大跨度斜拉桥施工力学行为参数敏感性分析 |
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| 引用本文： | 武芳文,赵雷.大跨度斜拉桥施工力学行为参数敏感性分析[J].兰州理工大学学报,2009,35(6). |
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| 作者姓名： | 武芳文 赵雷 |
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| 作者单位： | 1. 长安大学,公路学院,陕西,西安,710064
2. 西南交通大学,土木工程学院,四川,成都,610031 |
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| 摘 要： | 以泸州泰安长江公路大桥主桥(独塔混凝土斜拉桥)为工程背景,基于有限元分析理论,运用有限元软件BSAS建立有限元模型,分析混凝土主梁弹性模量、混凝土主塔弹性模量、斜拉索弹性模量、混凝土收缩徐变及混凝土主梁的重量等多个参数对结构内力、线形的影响及其变化规律.目的在于掌握参数变化时成桥结构内力及线形的变化范围是否危及结构的安全.计算结果表明,混凝土收缩徐变和混凝土主梁的重量对结构内力和线形影响显著,其他因素次之.
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| 关 键 词： | 桥梁工程 斜拉桥 施工力学 敏感性分析 结构参数 |
Analysis of sensibility of constructional mechanical behavior of large-span cable-stayed bridges to constructural parameters |
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| WU Fang-wen,ZHAO Lei.Analysis of sensibility of constructional mechanical behavior of large-span cable-stayed bridges to constructural parameters[J].Journal of Lanzhou University of Technology,2009,35(6). |
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| Authors: | WU Fang-wen ZHAO Lei |
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| Institution: | WU Fang-wen1,ZHAO Lei2(1.School of Highway,Chan'an University,Xi'an 710064,China,2.School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | Taking the Taian Yangtze River bridge(concrete cable-stayed bridge with single tower) as project background,the influence of multiple parameters such as the elastic modulus of concrete main beam,that of concrete main tower,that of staying cables,shrinkage and creepage of concrete,and weight of concrete main beam on the internal force and contour of the structure was analyzed and the variation pattern of these parameters were analyzed in order to find whether the variation range of the internal force and con... |
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| Keywords: | bridge engineering cable-stayed bridge construction mechanics sensibility analysis structural parameter |
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