| 曲线桥梁预应力束摩阻损失试验研究 |
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| 引用本文： | 王常峰,陈兴冲,尤凯,丁明波. 曲线桥梁预应力束摩阻损失试验研究[J]. 兰州交通大学学报, 2005, 24(6): 40-42 |
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| 作者姓名： | 王常峰 陈兴冲 尤凯 丁明波 |
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| 作者单位： | 兰州交通大学,土木工程学院,甘肃,兰州,730070;兰州铁路局,建设项目管理中心,甘肃,兰州,730030 |
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| 基金项目： | 铁道部科技发展基金，兰州交通大学校科研和教改项目 |
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| 摘 要： | 针对空间曲线预应力束摩阻损失较大的问题,结合河口黄河特大桥预应力摩阻损失试验,介绍了空间曲线束摩阻试验的试验方法,利用最小二乘法得出了其预应力损失参数μ,k,针对该桥摩阻损失较大的情况提出了处理方法,为该桥的施工和设计提供依据,为曲线预应力束的预应力损失计算提供一定的参考.
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| 关 键 词： | 预应力束 摩阻损失 最小二乘原理 摩阻系数 |
| 文章编号： | 1001-4373(2005)06-0040-03 |
| 收稿时间： | 2005-01-13 |
| 修稿时间： | 2005-01-13 |
Research on Attrition Loss of Prestress Wire of Curve Bridge |
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| Wang Changfeng,Chen Xingchong,You Kai,Ding Mingbo. Research on Attrition Loss of Prestress Wire of Curve Bridge[J]. Journal of Lanzhou Jiaotong University, 2005, 24(6): 40-42 |
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| Authors: | Wang Changfeng Chen Xingchong You Kai Ding Mingbo |
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| Affiliation: | 1. School of Civil Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China; 2. Construction Administrative Centre, Lanzhou Railway Bureau, Lanzhou 730030 ,China |
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| Abstract: | Because the attrition loss of prestress wire with space curve used in the curve bridge is bigger than that of the beeline wire, the experimental method to determine the attrition loss for the space curve wire was introduced according to the experiment of the Hekou Yellow River Bridge. The parameters for describing the attrition loss was acquired according to the least square method,and the method for the bigger attrition loss was put forward. The results can provide a reference for the calculation of the attrition loss with space curve and the construction of the curve bridge. |
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| Keywords: | prestress wire attrition loss least square method attrition parameters |
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