| 模拟嵌入式FRP条增强钢筋混凝土梁抗剪的三维力学模型 |
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| 引用本文： | Vincenzo Bianco J.A.O.Barros,Giorgio Monti. 模拟嵌入式FRP条增强钢筋混凝土梁抗剪的三维力学模型[J]. 钢结构, 2009, 0(6) |
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| 作者姓名： | Vincenzo Bianco J.A.O.Barros Giorgio Monti |
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| 摘 要： | 嵌入式FRP增强钢筋混凝土梁抗剪是进行结构修复的新技术,由于嵌入式FRP所具有的一些优势,使其成为较好的外贴加固技术,越来越受到重视。嵌入式FRP主要优势在于材料开发、对结构完整性的保护以及相对较快的适用性。由于FRP条复杂的几何尺寸,粘结后的非线性力学性能,混凝土受拉性能的离散性,使得嵌入式FRP条加固的性能十分复杂,一般通过试验来获得其性能。为更好地掌握表面嵌贴FRP带的性能,提出三维力学模型,用于模拟在相似加载过程中,嵌入式FRP条体系对钢筋混凝土梁抗剪强度的贡献。模型很好地解释了试验结果,并在模型中考虑了粘结滑移力和混凝土破坏之间的相互作用以及相邻FRP条之间的相互作用等复杂现象。
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| 关 键 词： | 数值模型 纤维增强复合材料 嵌入式技术 增强抗剪 混凝土破坏 剥离 |
Three Dimensional Mechanical Model for Simulating the NSM FRP Strips Shear Strength Contribution to RC Beams |
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| Vincenzo Bianco J.A.O.Borros , Giorgio Monti. Three Dimensional Mechanical Model for Simulating the NSM FRP Strips Shear Strength Contribution to RC Beams[J]. Steel Construction, 2009, 0(6) |
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| Authors: | Vincenzo Bianco J.A.O.Borros Giorgio Monti |
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| Abstract: | Shear strengthening of Reinforced Concrete(RC) beams by means of Near Surface Mounted(NSM) Fiber Reinforced Polymer(FRP) strips is an emerging technique for structural rehabilitation that is gaining increasing interest in the FRP community,mainly because of some advantages it provides with respect to the better consolidated technique of the Externally Bonded Reinforcement(EBR).Those advantages mainly encompass a better exploitation of material and a higher protection against vandalism,along with a relative ... |
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| Keywords: | Numerical model FRP NSM Shear strengthening Concrete fracture Debonding |
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