树脂基复合材料连接技术研究现状及在桥梁工程中的应用和发展

APPLICATION AND DEVELOPMENT OF FRP CONNECTING TECHNOLOGY IN BRIDGE ENGINEERING

为促进树脂基复合材料连接技术的发展及其在桥梁工程中的应用,本文从连接接头形式、接头制作工艺、接头传力特点和承载力影响因素等多个方面归纳总结了树脂基复合材料连接技术的研究成果,分析了其在桥梁工程中的应用现状及特点,认为连接技术是制约树脂基复合材料结构在桥梁工程中应用的瓶颈问题之一。根据树脂基复合材料结构的特点,借鉴航空工业中广泛应用的复合材料耳片接头、多向承插接头及复合材料桁架结构整体成型工艺等研究成果,提出了解决桥梁工程中复合材料结构连接问题的技术方案。

For the sake of accelerating the application of the fibre reinforcement plastic （FRP） structure in bridge engineering and the progress of the FRP members connecting technology, the FRP connecting technology＇ s actuality is summarized in multi-aspect influence factors such as the connecting joint types, manufacture technology, the transmission load characteristic, the load-carrying capacity and so on. The application actuality of the FRP struc- ture in bridge engineering and its members connecting technology characteristic are analysed. Consider the FRP connecting technology is one of the key problems to restrict the application of the FRP structure in bridge engineering. Base on the characteristic of the FRP structure, consult of the disquisitions of the composite material lug joint, multi-direction joint and the integral molding technology of the composite truss, bring forward the project to resolve the connecting problem of the FRP structure in bridge engineering.