FRP-混凝土组合梁在中小跨径公路桥梁中的设计方法

Design Method for FRP-Concrete Composite Beam in Highway Bridge with Medium and Small Span

以辽宁省新民市北西线姜屯桥为试验桥,对FRP-混凝土组合梁桥设计方法进行研究。以该中小跨径FRP-混凝土组合梁为研究对象,运用有限元分析和试验结合的方法,从各向异性材料的受力性能、组合梁的整体受力状况和刚度、横向连接处理方法等方面,阐述了FRP-混凝土组合梁桥关键控制节点的设计方法。

Taking Jiangtun bridge on the northwest line of Xinmin city in Liaoning province as the test bridge,the design method for FRP-concrete composite beam bridge is studied.Taking the FRP-concrete composite beam with medium and small span as the research object,the methods of combining finite element analysis and test are used to elaborate the design methods for key control joints of FRP-concrete composite beam bridge from some aspects like the mechanical performance of anisotropic materials,the overall stress state and stiffness of composite beam,and the treatment method of transverse connection and so on.