| FRP加固钢筋混凝土梁的变形简化计算分析 |
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| 引用本文： | 李敏锋,金国芳,王晓亮,赖颖,张文强. FRP加固钢筋混凝土梁的变形简化计算分析[J]. 四川建筑科学研究, 2011, 37(2): 87-90 |
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| 作者姓名： | 李敏锋 金国芳 王晓亮 赖颖 张文强 |
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| 作者单位： | 同济大学结构工程与防灾研究所,上海,200092 |
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| 摘 要： | FRP由于其高强度、轻质量及防腐等特性,在结构加固改造中的应用越来越广泛。根据文献中的FRP加固钢筋混凝土梁的荷载—变形模型,通过计算梁在开裂、钢筋屈服及极限情况3个阶段的弯矩和变形,建立了基于Rasheed模型的三折线简化分析模型,从而使荷载—变形关系计算更加简便。对该模型的数值试验模拟算例分析结果表明,该模型与实际的荷载变形曲线能较好地吻合,为FRP的应用研究提供参考。
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| 关 键 词： | FRP(纤维复合材) 钢筋混凝土梁 三折线模型 荷载—挠度关系曲线 |
Simplified calculation analysis of deformation of RC beams strengthened with FRP |
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| LI Minfeng,JIN Guofang,WANG Xiaoliang,LAI Ying,ZHANG Wenqiang. Simplified calculation analysis of deformation of RC beams strengthened with FRP[J]. Building Science Research of Sichuan, 2011, 37(2): 87-90 |
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| Authors: | LI Minfeng JIN Guofang WANG Xiaoliang LAI Ying ZHANG Wenqiang |
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| Affiliation: | LI Minfeng,JIN Guofang,WANG Xiaoliang,LAI Ying,ZHANG Wenqiang(Research Institute of Structural Engineering and Disaster Reduction,Tongji University,Shanghai 200092,China) |
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| Abstract: | With more properties than high strength,light weight and anti-corrosion,FRP(fiber reinforced polymers) are common used in the application of structure strengthening and retrofitting.A tri-linear model based on Rasheed's model is presented in this paper by calculating the moment and deformation at the stages of the cracking of concrete,yielding of the reinforcement and the limit state,and the calculation of load-deformation is simplified.The numerical results show that the tri-linear model places a good agre... |
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| Keywords: | FRP reinforced concrete(RC) beam tri-linear model load-deflection relation curve |
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