| FRP增强RC梁剥离破坏时抗剪承载力的修正公式 |
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| 引用本文： | 何志导,杨怡,周晓峰,黄培彦.FRP增强RC梁剥离破坏时抗剪承载力的修正公式[J].工业建筑,2007,37(Z1). |
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| 作者姓名： | 何志导 杨怡 周晓峰 黄培彦 |
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| 作者单位： | 1. 广东省东莞市公路管理局,东莞,523110
2. 华南理工大学,交通学院,广州,510640 |
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| 基金项目： | 国家自然科学基金项目(10672060,10272047)，中国博士后科学基金项目(20060400757)，华南理工大学博士后创新科学基金项目 |
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| 摘 要： | FRP片材被大量应用于结构加固与补强工程,其常见的加固形式有抗弯加固和抗剪加固。由于受到FRP应力分布和界面粘贴性能等诸多因素的影响,抗剪加固设计要比抗弯加固复杂得多。针对现有的FRP抗剪加固承载力计算模型的特点和不足,本文提出了一种修正的计算公式,并与从现有文献中收集到的25个最终为剥离破坏的试验结果相对比,结果表明修正公式的计算值与试验值吻合得比其它计算公式要好。
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| 关 键 词： | FRP 抗剪承载力 剥离破坏 修正公式 加固 |
A MODIFIED FORMAULA OF THE SHEAR CAPACITY OF RC BEAMS STRENGTHENED |
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| He Zhidao,Yang Yi,Zhou Xiaofeng,Huang Peiyan.A MODIFIED FORMAULA OF THE SHEAR CAPACITY OF RC BEAMS STRENGTHENED[J].Industrial Construction,2007,37(Z1). |
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| Authors: | He Zhidao Yang Yi Zhou Xiaofeng Huang Peiyan |
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| Abstract: | FRP is being widely used in structural reinforcing and strengthening engineering because of its advantages such as high strength-to-weight ratio,good corrosion resistance,and convenient construction.Many studies have been carried out on bend and shear strengthening.The design of the later is more complex because of the effect of the stress distributing in FRP,the interfacial performance,and so on.The existing shear capacity strength proposals are reviewed and their deficiencies highlighted.This paper presents a modified formula for the shear capacity when the FRP-strengthened RC beams fail in FRP debonding.The calculated results of the presented formula are validated against experimental data from the existing literature and superior than other formulae. |
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| Keywords: | FRP shear capacity debonding modified formula strengthening |
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