| 大跨度斜拉桥恒载非线性分析 |
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| 引用本文： | 朱行凤,王建国. 大跨度斜拉桥恒载非线性分析[J]. 合肥工业大学学报(自然科学版), 2007, 30(3): 285-289 |
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| 作者姓名： | 朱行凤 王建国 |
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| 作者单位： | 合肥工业大学,土木建筑工程学院,安徽,合肥,230009;合肥工业大学,土木建筑工程学院,安徽,合肥,230009 |
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| 摘 要： | 文章提出了一种简便的计算影响矩阵的方法,可以方便地进行斜拉桥成桥恒载索力优化。并对大跨度斜拉桥斜拉索垂度效应、梁柱效应和大位移效应3种几何非线性进行分析,对以往的分析方法提出了一些建议,在此基础上,编制了斜拉桥恒载内力分析程序,通过算例验证了建议的可行性和程序的可靠性。
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| 关 键 词： | 斜拉桥 索力优化 影响矩阵 几何非线性 |
| 文章编号： | 1003-5060(2007)03-0285-05 |
| 修稿时间： | 2006-03-20 |
Nonlinear analysis of long-span cable-stayed bridges under dead loads |
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| ZHU Xing-feng,WANG Jian-guo. Nonlinear analysis of long-span cable-stayed bridges under dead loads[J]. Journal of Hefei University of Technology(Natural Science), 2007, 30(3): 285-289 |
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| Authors: | ZHU Xing-feng WANG Jian-guo |
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| Abstract: | An efficient computational method of the influence matrix is proposed for cable force optimi-zation so as to calculate the cable force of cable-stayed bridges under dead loads easily.The cable sag effect,the beam-column effect and the large displacement effect are analyzed,the common methods of dealing with the above geometric nonlinearity are introduced,and some suggestions are given.The cal-culation program based on the suggested methods has been compiled and the flowchart is presented.A calculation example demonstrates its feasibility. |
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| Keywords: | cable-stayed bridge cable force optimization influence matrix geometrical nonlinearity |
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