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全FRP筋增强混凝土梁抗剪性能综述
Review on Shear Behavior of Concrete Beams Strengthened with FRP Bars and Stirrups
2021年第8期
纤维增强复合筋(FRP筋);混凝土梁;抗剪性能
FRP bar; Concrete beam; Shear behavior
2021年第8期
10.19761/j.1000-4637.2021.08.069.05
国家重点研发计划资助项目(2019YFC1511000);广东省普通高校基础研究与应用基础研究重点项目(2018KZDXM068);广东省自然科学基金项目(2018A030313864)。
吕家美1,邸 博2,何立杰2,黄柳超2
1.华南理工大学,广东 广州 510640;2.东莞理工学院,广东 东莞 523808

吕家美1,邸 博2,何立杰2,黄柳超2

吕家美,邸博,何立杰,等.全FRP筋增强混凝土梁抗剪性能综述[J].混凝土与水泥制品,2021(8):69-73.

LYU J M,DI B,HE L J,et al.Review on Shear Behavior of Concrete Beams Strengthened with FRP Bars and Stirrups[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(8):69-73.

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摘   要:钢筋锈蚀导致混凝土结构性能下降,使用寿命缩短。纤维增强复合(FRP)筋具有高抗拉强度和优异的耐腐蚀性能,在部分结构中可代替钢筋,以提升混凝土结构的耐久性。将FRP筋应用于混凝土结构中是未来发展的重要方向,但目前关于其抗剪性能及抗剪机理尚未阐述清楚。本文对国内外关于FRP筋混凝土梁的抗剪性能研究进行了总结与分析。 Abstract: The corrosion of steel bar leads to the deterioration of the performance and the shortening of the service life of concrete structures. Fiber reinforced polymer(FRP) bars have high tensile strength and excellent corrosion resistance, and can replace steel bars in some structures to improve the durability of concrete structures. The application of FRP bars in concrete structures is an important development direction in the future. However, the shear behavior and shear mechanism of FRP reinforced concrete beams have not been explained clearly. Therefore, the research on shear behavior of FRP reinforced concrete beams at home and abroad is summarized and analyzed.
英文名 : Review on Shear Behavior of Concrete Beams Strengthened with FRP Bars and Stirrups
刊期 : 2021年第8期
关键词 : 纤维增强复合筋(FRP筋);混凝土梁;抗剪性能
Key words : FRP bar; Concrete beam; Shear behavior
刊期 : 2021年第8期
DOI : 10.19761/j.1000-4637.2021.08.069.05
文章编号 :
基金项目 : 国家重点研发计划资助项目(2019YFC1511000);广东省普通高校基础研究与应用基础研究重点项目(2018KZDXM068);广东省自然科学基金项目(2018A030313864)。
作者 : 吕家美1,邸 博2,何立杰2,黄柳超2
单位 : 1.华南理工大学,广东 广州 510640;2.东莞理工学院,广东 东莞 523808

吕家美1,邸 博2,何立杰2,黄柳超2

吕家美,邸博,何立杰,等.全FRP筋增强混凝土梁抗剪性能综述[J].混凝土与水泥制品,2021(8):69-73.

LYU J M,DI B,HE L J,et al.Review on Shear Behavior of Concrete Beams Strengthened with FRP Bars and Stirrups[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(8):69-73.

摘要
参数
结论
参考文献
引用本文

摘   要:钢筋锈蚀导致混凝土结构性能下降,使用寿命缩短。纤维增强复合(FRP)筋具有高抗拉强度和优异的耐腐蚀性能,在部分结构中可代替钢筋,以提升混凝土结构的耐久性。将FRP筋应用于混凝土结构中是未来发展的重要方向,但目前关于其抗剪性能及抗剪机理尚未阐述清楚。本文对国内外关于FRP筋混凝土梁的抗剪性能研究进行了总结与分析。

Abstract: The corrosion of steel bar leads to the deterioration of the performance and the shortening of the service life of concrete structures. Fiber reinforced polymer(FRP) bars have high tensile strength and excellent corrosion resistance, and can replace steel bars in some structures to improve the durability of concrete structures. The application of FRP bars in concrete structures is an important development direction in the future. However, the shear behavior and shear mechanism of FRP reinforced concrete beams have not been explained clearly. Therefore, the research on shear behavior of FRP reinforced concrete beams at home and abroad is summarized and analyzed.

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(1)相较于钢筋混凝土梁的剪力传递机理,FRP筋混凝土梁中纵向筋材的销栓作用基本可以忽略,拱作用及FRP箍筋作用对抗剪承载力的贡献被削弱。
(2)影响FRP筋混凝土梁构件抗剪承载力的主要因素有:剪跨比、纵向配筋率、混凝土强度、配箍率和箍筋剪切强度、截面尺寸以及纵筋轴向刚度等。
(3)现有的大部分规范都低估了FRP筋增强混凝土梁的抗剪承载力。
(4)将神经网络等机器学习方法用于预测FRP筋混凝土梁的抗剪承载力时,预测结果的准确性更高。

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吕家美,邸博,何立杰,.FRP筋增强混凝土梁抗剪性能综述[J].混凝土与水泥制品,2021(8):69-73.

LYU J M,DI B,HE L J,et al.Review on Shear Behavior of Concrete Beams Strengthened with FRP Bars and Stirrups[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(8):69-73.

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