| 碳纤维布加固RC梁非线性分析 |
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| 引用本文： | 莫晓东,李丽娟,郭永昌,刘锋. 碳纤维布加固RC梁非线性分析[J]. 建筑技术开发, 2004, 0(12) |
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| 作者姓名： | 莫晓东 李丽娟 郭永昌 刘锋 |
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| 作者单位： | 广东工业大学建设学院,广州,510640;广东工业大学建设学院,广州,510640;广东工业大学建设学院,广州,510640;广东工业大学建设学院,广州,510640 |
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| 基金项目： | 广东省教育厅“千百十工程”资助项目 (Q0 2 0 94)，广东省建设厅资助项目 |
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| 摘 要： | 通过建立不同材料的本构方程 ,对碳纤维布加固钢筋混凝土 (RC)梁进行了抗弯加固有限元计算。分析了粘贴不同层数、不同长度纤维布时钢筋混凝土梁受拉底面等效应力及纤维布应力分布情况 ,并与试验结果进行了比较分析 ,结果表明有限元计算结果与试验结果有较好的一致性 ,碳纤维布可以有效的抑制梁受拉区混凝土应力的发展 ,提高混凝土梁的承载刚度
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| 关 键 词： | 钢筋混凝土梁 碳纤维布 有限元 加固 |
NONLINEAR NUMERICAL ANALYSIS OF THE RC BEAMS STRENGTHENED WITH CONTINUOUS CARBON FIBER SHEETS |
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| Mo Xiao-dong Li Li-juan Guo Yong-chang Liu Feng. NONLINEAR NUMERICAL ANALYSIS OF THE RC BEAMS STRENGTHENED WITH CONTINUOUS CARBON FIBER SHEETS[J]. Building Technique Development, 2004, 0(12) |
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| Authors: | Mo Xiao-dong Li Li-juan Guo Yong-chang Liu Feng |
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| Affiliation: | Mo Xiao-dong Li Li-juan Guo Yong-chang Liu Feng |
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| Abstract: | Flexural strength of reinforced concrete beams strengthened with continuous carbon fiber sheet is calculated with finite element method by establishing the constitutive equations of different materials. Equivalent stress distributions on the soffit of reinforced concrete beams and on the carbon fiber sheet are analyzed and compared with the experiment results. The results show that the calculation results have a good agreement with test results. Analysis shows that carbon fiber sheets can effectively restrain the developing of stress on concrete tensile face,and consequently can be used to improve rigidity of reinforced concrete beams. |
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| Keywords: | Reinforced concrete beam CFS FEM method Strengthening |
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