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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2008, Vol. 27 ›› Issue (S1): 871-874.

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曲梁预应力摩阻损失试验研究

梁甜甜1, 向中富1, 卞明智1, 陈明2   

  1. 1. 重庆交通大学 土木建筑学院, 重庆 400074;
    2. 重庆市合川区发展和改革委员会 政府投资项目评审中心, 重庆 401520
  • 收稿日期:2008-08-14 修回日期:2008-09-22 出版日期:2008-07-20 发布日期:2016-11-14
  • 作者简介:梁甜甜(1981-),女,重庆市人,硕士研究生,主要研究方向为桥梁设计理论与施工技术。E-mail:liangtiantian098@126.com;手机:13752950541。

Test and Study of Attrition Loss of Pre-stressed Wire of Curved Box Girder

LIANG Tian-tian1, XIANG Zhong-fu1, BIAN Ming-zhi1, CHEN Ming2   

  1. 1. School of Civil Engineering & Architecture, Chongqing Jiaotong University, Chongqing 400074, China;
    2. Evaluation Center of Government Investment Project, District Development & Reform Commission of Chongqing Hechuan, Chongqing 401520, China
  • Received:2008-08-14 Revised:2008-09-22 Online:2008-07-20 Published:2016-11-14

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摘要： 针对曲线梁中预应力筋束的摩擦系数取值的问题,结合曲梁预应力摩阻损失试验及有限元模型分析,介绍了预应力摩阻损失试验方法,分析了曲率半径与摩阻损失之间的关系,提出了摩阻系数取值建议,研究结果可为同类桥型预应力损失计算提供参考。

关键词: 曲线梁, 摩阻损失, 试验, 摩擦系数

Abstract: Aiming at the problem of choosing reasonable value of attribution parameters of pre-stressed curved bridge,the method of attrition loss test of pre-stressed wire is introduced,with the combination of the test of attrition loss of pre-stressed wire of curved bridge and finite element model analysis.The relation between curvature radius and attrition loss is analyzed,and the advice to choose the value of attrition factors is proposed,which serves as a reference to calculate attrition loss of the same type of bridges.

Key words: curved box girder, attrition loss, test, attrition parameters

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