FRP-混凝土组合桥面系统疲劳性能的研究综述.pdfVIP

学科代码： FRP-混凝土组合桥面系统疲劳性能研究综述 可守峰，杨勇，徐博林,薛建阳 （西安建筑科技大学 土木工程学院，陕西 西安） 摘 要：FRP-混凝土组合桥面板是由底部 FRP 型材和上部混凝土通过各种组合连接方式结合而成的新型桥面板形式，由于 FRP 材料所具有高强轻质、良好耐久性能和良好抗疲劳性能等特点，经合理设计的FRP-混凝土组合桥面板在桥梁上部结构 工程应用中具有显著性能优势和广泛应用前景，逐渐受到工程界重视。本文综述介绍了国内外FRP-混凝土组合桥面板及采 用FRP-混凝土组合桥面板的组合梁桥的应用情况与疲劳性能研究现状，并对今后需要重点研究的问题提出了相关建议。 关键词：FRP-混凝土组合桥面板；组合梁；疲劳性能；研究现状 中图分类号：TU398 文献标识码：A 文章编号： Research summary of the fatigue behavior of FRP -concrete composite system KE Shou-feng, YANG Yong, XU Bo-lin, XUE Jian-yang （Xian University of Architecture Technology ，college of civil engineering ，Xian 710055 ，China） Abstract: The FRP-concrete composite slabs were composed of Fiber Reinforced Plastic (which usually be abbreviated as FRP) plate and concrete, which was connected by the shear connector like perfobond ribs connectors (which usually be abbreviated as PBL) studs or other type of shear connector. Because of outstanding advantages of FRP material in fatigue behavior, durability and high strength-weight ratio, the FRP-concrete composite decks have many advantages on the engineering practice, and will be widely used in the future. In this paper, the types and research status of FRP-concrete composite decks were first introduced, and secondly the research status of the composite beams which composed of the FRP-concrete composite decks and steel girders below the composite deck was also presented, and finally based on above introduction and analysis, several impotent problems need to be study at present and in the future were advised. Keywords: FRP-concrete composite decks; composite girder; fatigue behavior; research status . 0 引 言 桥梁工程是国家重要的基础设施和关系到社