| FRP加固混凝土梁剪弯段的剥离应力分析 |
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| 引用本文： | 叶苏荣,熊光晶.FRP加固混凝土梁剪弯段的剥离应力分析[J].江苏大学学报(自然科学版),2011,32(1):111-115. |
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| 作者姓名： | 叶苏荣 熊光晶 |
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| 作者单位： | 汕头大学土木工程系,广东,汕头,515063 |
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| 基金项目： | 国家科技支撑计划项目(2006BAJ03A07); 广东省自然科学基金资助项目(5008283) |
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| 摘 要： | 为更有效地分析外贴纤维复合材料(FRP)片材加固混凝土梁剪弯段的剥离应力问题,提出了避开对整根加固梁进行有限元分析的困难,取加固梁两弯剪裂缝间梁段作为空间非线性有限元计算模型的思路,并用圣维南原理和数值模拟方法说明该简单模型的合理性和可靠性.并基于此模型,以FRP应力、剪跨比、FRP-混凝土粘结滑移本构关系、FRP层数...
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| 关 键 词： | 混凝土梁 纤维复合材料 剥离 应力分析 有限元 |
Peeling-off stress analysis of shear-flexure zone of FRP strengthened RC beams |
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| Ye Surong,Xiong Guangjing.Peeling-off stress analysis of shear-flexure zone of FRP strengthened RC beams[J].Journal of Jiangsu University:Natural Science Edition,2011,32(1):111-115. |
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| Authors: | Ye Surong Xiong Guangjing |
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| Institution: | Ye Surong,Xiong Guangjing(Department of Civil Engineering,Shantou University,Shantou,Guangdong 515063,China) |
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| Abstract: | In order to analyze the peeling-off stress of shear-flexure zone of externally bonded FRP strengthened reinforced concrete beams,a simple three-dimensional nonlinear finite element model based on the beam segment between two flexural cracks of a FRP strengthened beam was proposed.The difficulty to analyze the peeling-off stress by taking a whole strengthened beam as a finite element model was avoided.The proposed simple model was validated by Saint-Venant principle and numerical study.Based on this model,a ... |
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| Keywords: | concrete beams fiber reinforced plastics peeling-off stress analysis finite element |
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