| FRP布加固钢筋混凝土梁截面刚度的分析 |
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| 引用本文： | 赵 军,戴昌强.FRP布加固钢筋混凝土梁截面刚度的分析[J].科学技术与工程,2017,17(34). |
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| 作者姓名： | 赵 军 戴昌强 |
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| 作者单位： | 桂林理工大学 |
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| 基金项目： | 国家自然科学(51568016); 广西矿冶与环境科学实验中心项目(KH2011YB025) |
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| 摘 要： | 为了准确计算正常使用阶段纤维复合材料(FRP)加固钢筋混凝土梁的复合刚度,本文以材料力学理论推导为基础,结合数值模拟,研究了加固梁的刚度性能。通过曲率引入曲线方程,建立挠度、刚度和弯矩三者之间的关系,然后运用有限元软件模拟加固梁,观察梁在不同荷载下的跨中挠度,预测了加固梁的复合刚度。研究结果表明：本文模型计算值与文献中的实验值吻合较好,使用该模型可以有效的预测加固梁的刚度。
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| 关 键 词： | 钢筋混凝土 ANSYS 复合刚度 FRP加固 挠度 |
| 收稿时间： | 2017/4/19 0:00:00 |
| 修稿时间： | 2017/6/16 0:00:00 |
Calculation of sectional stiffness of reinforced concrete beamsstrengthened with FRP cloth |
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| zhaojun and.Calculation of sectional stiffness of reinforced concrete beamsstrengthened with FRP cloth[J].Science Technology and Engineering,2017,17(34). |
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| Authors: | zhaojun and |
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| Institution: | Guilin University of Technology, |
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| Abstract: | In order to accurately calculate the composite stiffness of reinforced concrete beams strengthened with fiber reinforced concrete in during normal working conditions. This paper studies the stiffness of reinforced beams based on the theoretical study of material mechanics and the numerical simulation. The relationship between deflection, stiffness and bending moment is established by curvature curve, and then the finite element software is used to simulate the strengthened beam. The cross - deflection of the beam under different loads is observed and the composite stiffness of the strengthened beam is predicted. The results show that the calculated values of this model are in good agreement with the experimental data in the literature, and the stiffness of the strengthened beams can be effectively predicted by this model. |
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