纤维增强复合材料缆索锚固系统研究与应用进展  

Review on research and application of fiber reinforced polymer cables-anchorage system

作　　者：梅葵花[1] 李宇[1] 贾文科 李雪[1] Mei Kuihua;Li Yu;Jia Wenkee;Li Xue(Chang'an University,Xi'an 710064,China)

机构地区：[1]长安大学,陕西西安710064

出　　处：《土木工程学报》2023年第4期83-102,共20页China Civil Engineering Journal

基　　金：国家自然科学基金(51778059)。

摘　　要：纤维增强复合材料(FRP)相对于传统钢制缆索具有高强、耐腐蚀和轻质等优异性能,然而如何充分利用这些特性并实现对FRP缆索的可靠锚固,一直是阻碍FRP缆索实现规模化和商业化应用的障碍。FRP缆索锚固系统由非金属的FRP缆索和定制的锚具组成,其研究和应用已成为土木工程界的热点之一。为促进FRP缆索锚固系统的发展和推广应用,从FRP缆索锚固系统的分类、静载锚固性能、长期性能和疲劳性能四个方面综述了FRP缆索锚固系统的研究现状,并介绍了其在实际桥梁工程中的应用。首先综述了FRP缆索锚固系统的分类,对各类不同构造形式和组成材料的黏结型、夹持型和复合型锚固系统进行了系统性梳理,并进行相互之间特点对比;然后剖析了不同类型FRP缆索锚固系统静载锚固性能、长期性能和疲劳性能的影响因素,分析了各类FRP缆索锚固系统的性能机理,并在此基础上阐述了其有限元分析方法和解析分析方法;其次,总结了国内外具有代表性的应用碳纤维增强复合材料(CFRP)缆索锚固系统的实际工程,介绍了CFRP缆索锚固系统的应用场景和基本构型,并强调了各锚固系统的设计特色;最后探讨了FRP缆索锚固系统目前存在的问题和未来的发展趋势,以期对FRP缆索锚固系统的学术研究和工程实践提供新的启发和基础资料。Fiber reinforced polymer(FRP)have excellent properties such as high strength,corrosion resistance and light weight compared with traditional steel cables.However,how to fully utilize these properties and achieve reliable anchorage of FRP cables has been an obstacle to the large-scale and commercial application of FRP cables.FRP cablesanchorage system consists of non-metallic FRP cables and customized anchorages,whose research and application have become one of hot topics in civil engineering.In order to promote the development and application of FRP cablesanchorage system,the research status of FRP cables-anchorage system were summarized from its classification,static load anchorage performance,long-term performance and fatigue performance.Furthermore its application in actual bridge projects was introduced.Firstly,the classification of FRP cables-anchorage systems was introduced.Various types of bond-,wedge-and composite-type anchorage systems with different construction forms and composition materials were systematically sorted out and their characteristics were compared.Then,the factors affecting the static anchorage performance,long-term performance and fatigue performance of dfferent types of FRP tendons-anchorage system were analyzed,and the performance mechanisms of various types of anchorage systems were explored.On this basis,the finite element analysis method and analytical analysis method were elaborated.Next,the practical projects using carbon fiber reinforced polymer(CFRP)cables-anchorage systems in China and abroad were summarized,and the application scenarios and basic configurations of CFRP cables-anchorage systems were introduced,and the design features of each anchorage system were presented.Finally,the existing problems and future development trend of FRP cables-anchorage system were discussed in order to provide reference for academic research and engineering practice of FRP cables-anchorage system.

关 键 词：桥梁工程 纤维增强复合材料 综述 FRP缆索锚固系统 性能 应用 

分 类 号：U443.38[建筑科学—桥梁与隧道工程]