| 黏FRP加固钢筋混凝土构件抗弯简化计算 |
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| 引用本文： | 刘建平,周朝阳,叶如枫. 黏FRP加固钢筋混凝土构件抗弯简化计算[J]. 铁道科学与工程学报, 2010, 7(6) |
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| 作者姓名： | 刘建平 周朝阳 叶如枫 |
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| 作者单位： | 1. 中南大学,土木建筑学院,湖南,长沙,410075;长沙学院,410003
2. 中南大学,土木建筑学院,湖南,长沙,410075 |
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| 基金项目： | 国家自然科学基金资助项目(50778176); 湖南省自然科学基金重点项目(08JJ3105,09JJ3098); 湖南省科技计划重点项目(2010FJ2001); 长沙学院科研基金项目(CDJJ-10010203); 中南大学大学生创新性实验计划资助项目(LC10139) |
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| 摘 要： | 黏FRP加固钢筋混凝土梁在屈服时和屈服后拉断时2种状态下正截面受压混凝土尚未压坏,作者对其合力大小及位置进行了简化,给出了相应的弯矩特征值近似公式.研究结果表明,其计算结果与试验结果吻合良好.提出了以抵抗FRP拉断为目标的抗弯加固设计简化计算方法.
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| 关 键 词： | FRP加固 钢筋混凝土梁 屈服弯矩 极限弯矩 抗弯加固计算 |
Simplified calculation for RC members strengthened in flexure with bonded FRP reinforcement |
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| LIU Jian-ping , ZHOU Chao-yang , YE Ru-feng. Simplified calculation for RC members strengthened in flexure with bonded FRP reinforcement[J]. Journal of Railway Science and Engineering, 2010, 7(6) |
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| Authors: | LIU Jian-ping ZHOU Chao-yang YE Ru-feng |
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| Affiliation: | LIU Jian-ping1,2,ZHOU Chao-yang1,YE Ru-feng1(1.School of Civil Engineering , Architecture,Central South University,Changsha 410075,China,2.Changsha University,Changsha 410003,China) |
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| Abstract: | For RC beams strengthened with bonded FRP reinforcement,compressed concrete on cross section is not crushed in the states of both rebar yielding and FRP rupturing after the rebar yield.The resultant force of compressed concrete and its location were simplified in this paper.Then approximate expressions were proposed to calculate the bending moments in both states above mentioned.The results show that the predictions of the simplified procedures agree well with the experimental values.In addition,a simplifie... |
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| Keywords: | FRP-strengthened reinforced concrete beam bending moment at rebar yielding ultimate bending moment flexural strengthening |
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