FRP梁与混凝土组合结构抗弯与抗剪性能分析  

ANALYSIS OF BENDING AND SHEAR PERFORMANCE OF FRP BEAMS IN COMPOSITE STRUCTURES WITH CONCRETE

作　　者：高丽芳[1] GAO Li-fang(China Railway 18th Bureau Group Fifth Engineering Co.,Ltd.,300450,Tianjin,China)

机构地区：[1]中铁十八局集团第五工程有限公司,天津300450

出　　处：《建筑技术》2025年第7期876-881,共6页Architecture Technology

摘　　要：本研究对复合纤维增强聚合物(FRP)梁与混凝土桥面板整合的弯曲和抗剪性能进行了探讨。首先对复合FRP梁进行了弯曲性能测试,然后通过两种抗剪连接方式将其与混凝土桥面板连接,一种是仅使用环氧树脂胶粘剂,另一种是采用U形螺栓与环氧树脂胶粘剂的组合。分析了这些抗剪连接的有效性,在此基础上,进行了FRP梁与混凝土桥面板复合结构的全尺寸弯曲性能测试。研究结果表明,使用U形螺栓显著增强了复合FRP梁与混凝土桥面板之间的抗剪连接。此外,在复合FRP梁顶部加设混凝土桥面板有效防止了层压板分离和梁的突然失败。This study explores the bending and shear performance of composite fiber-reinforced polymer(FRP)beams integrated with concrete bridge decks.Firstly,the bending performance of the composite FRP beam was tested,and then it was connected to the concrete bridge deck using two shear connection methods:one was to use only epoxy resin adhesive,and the other was to use a combination of U-bolts and epoxy resin adhesive.The effectiveness of these shear connections was analyzed,and based on this,full-scale bending performance tests were conducted on the composite structure of FRP beams and concrete bridge decks.The research results indicate that the use of U-bolts significantly enhances the shear connection between composite FRP beams and concrete bridge decks.In addition,adding a concrete bridge deck on top of the composite FRP beam effectively prevents the separation of the laminated board and sudden failure of the beam.

关 键 词：复合FRP梁 组合结构 抗弯性能 抗剪性能 

分 类 号：TU74[建筑科学—建筑技术科学]