| 预应力混杂纤维加固RC梁界面应力参数化分析 |
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| 引用本文： | 王冬英,钟根全. 预应力混杂纤维加固RC梁界面应力参数化分析[J]. 混凝土, 2009, 0(4). DOI: 10.3969/j.issn.1002-3550.2009.04.013 |
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| 作者姓名： | 王冬英 钟根全 |
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| 作者单位： | 1. 广东交通职业技术学院,广东广州,510650
2. 广东工业大学建设学院,广东广州,510006 |
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| 摘 要： | 通过建立纤维加固RC梁的有限元模型,进行界面性能非线性有限元分析,研究了不同荷载大小,不同胶层弹性模量及厚度、不同加固形式和不同预应力大小的作用下,RC梁界面混凝土应力的变化情况.结果表明:FRD末端界面处,混凝土的剪应力和正应力得到峰值,然后随着距末端的距离增加而呈非线性减小,并接近于零.
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| 关 键 词： | 混杂纤维增强复合材料 预应力 界面性能 参数化 |
Parametric analysis on interface stresses of pre-stressed strengthening RC beams with HFRP |
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| WANG Dong-ying,ZHONG Gen-quan. Parametric analysis on interface stresses of pre-stressed strengthening RC beams with HFRP[J]. Concrete, 2009, 0(4). DOI: 10.3969/j.issn.1002-3550.2009.04.013 |
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| Authors: | WANG Dong-ying ZHONG Gen-quan |
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| Affiliation: | 1.Guangdong Communication Polytechnic College;Guangzhou 510650;China;2.Faculty of Construction Engineering;Guangdong University of Technology;Guangzhou 510006;China |
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| Abstract: | Through establishment of FE model,the interface properties of RC beams strengthened by FRP are numerically analyzed by nonlin-ear finite element method.The interface concrete stress of RC beams strengthened by pre-stressed HFRP are parametrically analyzed under the con-ditions of different load,different Young's modulus and thickness of adhesive,different strengthened styles and different prestressed styles.The re-sults show that the shear stress and normal stress of concrete are the peak at the end of inte... |
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| Keywords: | HFRP pre-stress interface property parametric |
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