| 斜拉桥无应力索长实用迭代算法 |
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| 引用本文： | 王健,杨雨豪.斜拉桥无应力索长实用迭代算法[J].城市道桥与防洪,2020(2):150-153,M0017. |
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| 作者姓名： | 王健 杨雨豪 |
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| 作者单位： | ;1.中交第一公路勘察设计研究院有限公司 |
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| 摘 要： | 通过选取合理的斜拉索参数,分析了基于抛物线理论、非弹性悬链线理论和弹性悬链线理论计算无应力索长的精确度;同时给出了基于牛顿迭代法求解弹性悬链线理论非线性方程组的详细步骤,得到了较高精度的无应力索长。该方法操作简单,计算精度高,能为设计人员计算精确拉索参数提供有效便捷的手段。
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| 关 键 词： | 斜拉桥 无应力索长 抛物线理论 悬链线理论 牛顿迭代法 |
Practical Iterative Algorithm for Unstressed Cable Length of Cable-stayed Bridge |
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| Wang Jian,Yang Yuhao.Practical Iterative Algorithm for Unstressed Cable Length of Cable-stayed Bridge[J].Urban Roads Bridges & Flood Control,2020(2):150-153,M0017. |
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| Authors: | Wang Jian Yang Yuhao |
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| Abstract: | By selecting the reasonable cable parameters,this paper analyzes the accuracy of calculating the unstressed cable length based on parabola theory,inelastic catenary theory and elastic catenary theory,and also introduces the detailed steps of solving the nonlinear equations of elastic catenary theory based on Newton iterative method to obtain the high-precision unstressed cable length.This method is easy to operate and has high accuracy,which can provide an effective and convenient means for the designers to calculate the precise cable parameters. |
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| Keywords: | cable-stayed bridge unstressed cable length parabola theory catenary theory Newton iteration method |
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