| 刚度分配法在重庆朝天门长江大桥扣索力计算与研究中的应用 |
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| 引用本文： | 张锋,王福敏,尚军年.刚度分配法在重庆朝天门长江大桥扣索力计算与研究中的应用[J].公路交通技术,2009(2):75-79. |
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| 作者姓名： | 张锋 王福敏 尚军年 |
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| 作者单位： | 1. 淮海工学院,江苏,连云港,222000
2. 重庆交通科研设计院,重庆,400067 |
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| 摘 要： | 重庆朝天门长江大桥为世界第1跨度公轨2用拱桥，设计中主要以应力控制为主。阐述柔索索力传统计算方法，指出在计算扣索力时用传统先估算索力的计算方法误差很大。在实际有限元设计中，采用刚度分配法计算扣索力，不仅计算方便、快捷、准确，而且兼顾了目标控制应力和控制位移。
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| 关 键 词： | 刚度分配法 切线刚度矩阵 合理扣索力 |
Application of Rigidity Distribution Method in Calculation and Research for Force of Knotted Cable in Chongqing Chaotianmen Yangtze River Bridge |
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| ZHANG Feng,WANG Fumin,SHANG Junnian.Application of Rigidity Distribution Method in Calculation and Research for Force of Knotted Cable in Chongqing Chaotianmen Yangtze River Bridge[J].Technology of Highway and Transport,2009(2):75-79. |
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| Authors: | ZHANG Feng WANG Fumin SHANG Junnian |
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| Institution: | ZHANG Feng1,WANG Fumin2,SHANG Junnian2 |
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| Abstract: | Chongqing Chaotianmen Yangtze River Bridge is an arch bridge of the longest span in the world for expressway traffic and light-railway traffic.Stress control is the first thing in the design.This paper describes traditional calculation method of soft cable force,points out that there is a major error in the traditional calculation method for force of knotted cable where force of cable is estimated beforehand.Rigidity distribution method is used to calculate force of cable in finite element design.It is not ... |
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| Keywords: | rigidity distribution method tangent stiffness matrix reasonable force of knotted cable |
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