| FRP板加固钢筋混凝土梁的计算探讨 |
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| 引用本文： | 余天庆,褚利波,李厚民.FRP板加固钢筋混凝土梁的计算探讨[J].南京理工大学学报(自然科学版),2002,26(4):426-429. |
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| 作者姓名： | 余天庆 褚利波 李厚民 |
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| 作者单位： | 1. 湖北工学院土木工程系,武汉,430068
2. 湖北工学院,机械工程系,武汉,430068 |
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| 摘 要： | 采用纤维增强塑料 (FRP)板对钢筋混凝土构件进行加固是近年来混凝土结构病害防治研究领域的一个新兴方向。该文基于钢筋混凝土结构设计理论中的截面平衡方程和应力应变关系 ,为FRP板加固的钢筋混凝土梁的计算提供了行之有效的理论和方法。以双筋矩形截面梁的计算分析为重点 ,给出了适用于单筋、双筋矩形截面梁和T形截面梁的计算公式 ,较好地反映了梁抗弯加固时正截面受力情况 ,对类似结构的加固设计也提供了有益的参考
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| 关 键 词： | 结构加固 计算方法 公式 FRP板 钢筋混凝土梁 病害防治 |
| 修稿时间： | 2001年11月8日 |
Research on Computational Method of RC Beams Strengthened with FRP Plates |
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| Abstract: | In recent years, to strengthen the deficient reinforced concrete (RC) members with fiber reinforced polymer (FRP) has been a booming field in the study on the protection and treatment of concrete structure defects. Based on equilibrium equations and stress strain relationships, an effective theory and computational method for the analysis of RC beams strengthened with FRP plates are presented. Through detailed discussion on the doubly RC rectangular section, a set of formulae applicable to both singly and doubly RC rectangular sections as well as T sections, are deduced. It quite well describes the mechanical behavior of beam cross sections after rehabilitation with FRP plates and also provides valuable reference to the design of similar structures. |
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| Keywords: | structural strengthening computational method formula FRP plates RC beams defect treatment |
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