混杂纤维布加固混凝土梁抗弯疲劳性能试验研究

陈绪军; 李华锋; 杨勇新

doi:10.13204/j.gyjz201206017

混杂纤维布加固混凝土梁抗弯疲劳性能试验研究

doi: 10.13204/j.gyjz201206017

1.
1 九江学院土木工程与城市建设学院江西九江 332005;
2.
2 中冶建筑研究总院有限公司北京 100088

基金项目:

九江学院重点资助科研项目(2011KJ01)

详细信息

作者简介:
陈绪军，男，1979年出生，硕士，讲师

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- 文章访问数: 116
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- 被引次数: 0
出版历程
- 收稿日期: 2012-02-21
- 刊出日期: 2012-06-20

EXPERIMENTAL STUDY ON FLEXURAL FATIGUE PERFORMANCE OF RC BEAMS STRENGTHENED WITH HYBRID FIBER SHEETS

1.
1. College of Civil Engineering and Urban Construction,Jiujiang University,Jiujiang 332005,China;
2.
2. Central Research Institute of Building and Construction Co.,Ltd of MCC,Beijing 100088,China

摘要

摘要: 通过5根钢筋混凝土梁的变幅疲劳试验,研究碳/玻璃混杂、碳/玄武岩混杂纤维布加固梁的弯曲疲劳性能,并与玄武岩纤维布加固梁进行了比较。结果表明:在纤维布粘贴层数相同条件下,混杂纤维布加固梁的抗疲劳性能更优,疲劳寿命明显延长。在均方根等效载荷法的基础上,得到了变幅疲劳试验梁的S-N曲线数学表达式,可供工程设计参数。
- 混杂纤维布 /
- 玄武岩纤维布 /
- 钢筋混凝土梁 /
- 疲劳性能 /
- S-N曲线
Abstract: The variable amplitude test of BC beams was investigated with 5 specimens, in which the flexural fatiguebehavior of RC beams strengthened with carbon /glass hybrid fiber sheets and carbon /basalt hybrid fiber sheets wasstudied, and compared with that of RC beams strengthened with basalt fiber sheets. Experimental results showed thatthe anti-faigue properties of RC beams stengthened with hybrid fiber sheets was better, and the fatigue life wassignificantly prologed. Based on the root mean square(RMS) method, the S - N curves formula on variable amplitudefatigue was proposed, which may be reference for the engineering design.
- hybrid fiber sheets /
- basalt fiber sheets /
- reinforced concrete beam /
- fatigue behavior /
- S-N curve

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参考文献(11)

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