高速铁路复杂箱形截面预应力混凝土梁疲劳性能试验研究

华建民; 邹小波; 王剑越; 曹晖; 李正良

doi:10.11835/j.issn.1674-4764.2011.03.003

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高速铁路复杂箱形截面预应力混凝土梁疲劳性能试验研究

更新时间：2023-11-28

- 高速铁路复杂箱形截面预应力混凝土梁疲劳性能试验研究
- Experimental Analysis of Bending Fatigue Behavior of Prestressed Concrete Girders with Complex Box-type Section Used in High-speed Railway
- 土木与环境工程学报（中英文） 2011年33卷第3期页码：8-12
- 作者机构：
  
  1. 重庆大学土木工程学院,山地城镇建设与新技术教育部重点实验室,重庆,400045
  2. 重庆大学土木工程学院,重庆,400045
- 作者简介：
- 基金信息：
- DOI：10.11835/j.issn.1674-4764.2011.03.003
  中图分类号：
- 纸质出版：2011
- 稿件说明：
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华建民, 邹小波, 王剑越, 等. 高速铁路复杂箱形截面预应力混凝土梁疲劳性能试验研究[J]. 土木与环境工程学报（中英文）, 2011,33(3):8-12.

HUA Jian-min, ZOU Xiao-bo, WANG Jian-yue, et al. Experimental Analysis of Bending Fatigue Behavior of Prestressed Concrete Girders with Complex Box-type Section Used in High-speed Railway[J]. Journal of Civil and Environmental Engineering, 2011, 33(3): 8-12.
华建民, 邹小波, 王剑越, 等. 高速铁路复杂箱形截面预应力混凝土梁疲劳性能试验研究[J]. 土木与环境工程学报（中英文）, 2011,33(3):8-12. DOI： 10.11835/j.issn.1674-4764.2011.03.003.

HUA Jian-min, ZOU Xiao-bo, WANG Jian-yue, et al. Experimental Analysis of Bending Fatigue Behavior of Prestressed Concrete Girders with Complex Box-type Section Used in High-speed Railway[J]. Journal of Civil and Environmental Engineering, 2011, 33(3): 8-12. DOI： 10.11835/j.issn.1674-4764.2011.03.003.

摘要

以武广高铁武汉站36 m跨复杂箱形截面预应力混凝土简支梁为原型

制作4个1/6缩尺模型

其中1个模型加入13%的高分子聚合物胶乳

通过静力试验和疲劳试验

考察了复杂箱梁在正常使用和超过设计值的循环荷载作用下的疲劳性能

以及聚合物对箱梁疲劳性能的影响.试验结果表明

根据运营阶段箱梁控制截面底部的最大和最小应力值确定的加载幅值作用下

200万次加载后表明模型的疲劳寿命满足要求

并且对后期高幅值加载下的疲劳性能没有影响

聚合物的加入对模型的疲劳性能没有负面影响.

Abstract

Based on a prestressed concrete girder with complex box-type section of 36m span

four models of 1/6 scale are made

and one of them is mixed with a kind of polymer latex. Experiments with monotonically and cyclically loading are carried out on the models to study bending fatigue behavior of the girder in service and under cyclic load exceeding the designed value

as well as the impact of polymer on fatigue performance of the girder. The results show that

under the cyclic load of value determined by the maximum and minimum stress at the key part of the girder in service

the fatigue performance is satisfactory and the fatigue behavior under a subsequent larger cyclic load is similar with that one under the same big cyclic load. Besides

the polymer has no negative effect on fatigue behavior of the model.

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