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准高速客运专线轨道梁的徐变性能

薛伟辰 王巍 任廷柱 胡于明

薛伟辰, 王巍, 任廷柱, 胡于明. 准高速客运专线轨道梁的徐变性能[J]. 西南交通大学学报, 2008, 21(4): 434-440.
引用本文: 薛伟辰, 王巍, 任廷柱, 胡于明. 准高速客运专线轨道梁的徐变性能[J]. 西南交通大学学报, 2008, 21(4): 434-440.
XUE Weichen, WANG Wei, REN Tingzhu, HU Yuming. Creep Behavior of Track Girders on Quasi-high-speed Dedicated Passenger Railway[J]. Journal of Southwest Jiaotong University, 2008, 21(4): 434-440.
Citation: XUE Weichen, WANG Wei, REN Tingzhu, HU Yuming. Creep Behavior of Track Girders on Quasi-high-speed Dedicated Passenger Railway[J]. Journal of Southwest Jiaotong University, 2008, 21(4): 434-440.

准高速客运专线轨道梁的徐变性能

基金项目: 

建设部研究开发项目(04-2-026)

上海市青年科技启明星(跟踪)计划资助项目(06QH14013)

详细信息
    作者简介:

    薛伟辰(1970- ),男,教授,博士,博士生导师,研究方向为现代预应力结构,电话:021-65980418,E-mail:xuewc@mail.tongji.edu.cn

Creep Behavior of Track Girders on Quasi-high-speed Dedicated Passenger Railway

  • 摘要: 以秦沈客运专线轨道梁为原型,设计了3根1:5大尺度T型预应力混凝土模型梁,进行了为期3 a的徐变性能试验,重点考察了混凝土种类和预应力筋张拉方式对轨道梁徐变变形的影响.编制了基于龄期调整有效模量法的时随有限元全过程分析程序,实现了准高速客运专线轨道梁时随全过程分析.在此基础上,提出了综合考虑混凝土种类、预应力筋张拉方式及截面上下缘应力差等因素影响的准高速客运专线预应力混凝土轨道梁徐变变形的设计建议,计算结果与试验值吻合较好.

     

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出版历程
  • 收稿日期:  2008-01-11
  • 刊出日期:  2008-08-25

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