| FRP板加固钢筋混凝土梁的界面应力分析 |
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| 引用本文： | 彭明兰,石志飞.FRP板加固钢筋混凝土梁的界面应力分析[J].北京交通大学学报(自然科学版),2004,28(1):38-42. |
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| 作者姓名： | 彭明兰 石志飞 |
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| 作者单位： | 北京交通大学,土木建筑工程学院,北京,100044;北京交通大学,土木建筑工程学院,北京,100044 |
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| 摘 要： | 基于弹性力学理论,研究了4点弯曲情况下FRP板加固钢筋混凝土梁的界面应力分布.在考虑粘结层影响的情况下给出了FRP板板端界面上剥离应力和正应力的解析表达式,分析了表达式中各物理量对界面应力的影响.由于进行了合理的简化,使得分析过程简单,且得到的解析解与文献中给出的有限元解答和试验结果符合很好,此外还给出了FRP板发生断裂破坏时的极限承载力表达式.
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| 关 键 词： | 土木建筑结构 FRP板 粘结层 加固梁 复合材料 |
| 文章编号： | 1000-1506(2004)01-0038-05 |
| 修稿时间： | 2003年9月23日 |
Interfacial Stress Analysis of A RC Beam Strengthened with FRP Plate |
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| PENG Ming-lan,SHI Zhi-fei.Interfacial Stress Analysis of A RC Beam Strengthened with FRP Plate[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,2004,28(1):38-42. |
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| Authors: | PENG Ming-lan SHI Zhi-fei |
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| Abstract: | Based on the theory of elasticity, a four_ point bending RC beam strengthened by a FRP plate is investigated. Taking the effect of adhesive layer into account, analytical formula of normal stress and shear stress at the interface are obtained and discussed. The analytical solutions obtained in present paper agree well with both the FEM and experimental results. In addition, the limit load of a reinforced beam is also deduced when the FRP plate is snapped. |
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| Keywords: | architecture structure FRP plate adhesive layer reinforced beam composites |
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