| 用倒拆修正法计算拱桥施工扣索索力与预抬量 |
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| 引用本文： | 梅盖伟,张敏,周水兴.用倒拆修正法计算拱桥施工扣索索力与预抬量[J].重庆交通大学学报(自然科学版),2009,28(2):199-202,227. |
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| 作者姓名： | 梅盖伟 张敏 周水兴 |
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| 作者单位： | 重庆交通大学,土木建筑学院,重庆,400074 |
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| 基金项目： | 重庆市交委重点科研项目 |
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| 摘 要： | 以在建的大宁河大桥为工程背景,开展拱肋吊装过程扣索索力和预抬量的优化分析。提出了引入索力罚系数的修正倒拆法,推导了罚系数的计算公式,利用ANSYS建立了相应的倒拆分析模型。计算结果表明,该方法具有计算精度高的优点,与实测结果吻合良好。
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| 关 键 词： | 大宁河大桥 拱肋安装 优化数学模型 罚系数 倒拆修正法 扣索索力 预抬量 |
Solution on Cable Force and Segmental Camber in Arch Bridge Construction by Modified Inverted Method |
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| MEI Gai-wei,ZHANG Min,ZHOU Shui-xing.Solution on Cable Force and Segmental Camber in Arch Bridge Construction by Modified Inverted Method[J].Journal of Chongqing Jiaotong University,2009,28(2):199-202,227. |
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| Authors: | MEI Gai-wei ZHANG Min ZHOU Shui-xing |
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| Institution: | School of Civil Engineering & Architecture;Chongqing Jiaotong University;Chongqing 400074;China |
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| Abstract: | Taking Da-ning River Bridge in construction as the engineering background,the optimization analysis of cable forces and segmental cambers has been carried out during the process of arch rib segmental installment.A modified inverted method including cable force penalty factor is put forward,a formula of calculating penalty factor is deduced,and a corresponding FEA model is established by ANSYS.The analytical result shows that this method is of high accuracy,and the results of this method are in good accordan... |
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| Keywords: | Da-ning River Bridge arch rib installation OPT mathematical model penalty factor modified inverted method cable force segmental camber |
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