建筑结构学报2025,Vol.46Issue(8):97-113,17.DOI:10.14006/j.jzjgxb.2024.0607
碳纤维复合材料拉索的锚固体系研究进展
Research progress on anchoring systems for carbon fiber composite cable
摘要
Abstract
Traditional steel cables can be replaced by carbon fiber reinforced polymer(CFRP)cables which have many benefits such as light weight,high strength,corrosion resistance,and fatigue durability,and therefore significantly enhances the span and service life of cable structures.However,the anisotropic nature of CFRP cables presents substantial challenges for anchorage,thus limiting their widespread and industrial-scale adoption in engineering applications.To provide a comprehensive review of the research progress and challenges associated with the anchorage systems of CFRP cables,four types of CFRP cables were introduced according to different cable body forms,and their practical applications in both domestic and international projects were discussed.The anchoring configurations and principles applicable to various types of cables were systematically elaborated,and the limitations of different anchor types were analyzed.The effective measures to address the stress concentration issues in anchors were summarized.The results indicate that anchors relying solely on adhesive force or friction are only suitable for anchoring small-tonnage CFRP cables,while anchors based on friction-adhesion coupling force can effectively anchor large-tonnage CFRP cables.For bonded-type anchorages,anchoring efficiency can be improved by increasing the contact area between the CFRP cable and the adhesive or by using modified adhesives.In mechanical anchorages,the key to optimizing the anchorage structure design is mitigating and transferring the peak stress at the loading end,as well as evenly distributing compressive stress in the radial or width directions.For self-anchoring anchorages,increasing the cross-sectional area of the cable in the anchoring zone could effectively alleviate the tensile stress concentration at the transition zone of the anchor ring.关键词
CFRP拉索/锚固体系/研究进展/锚固效率/应力集中Key words
CFRP cable/anchoring system/research progress/anchorage efficiency/stress concentration分类
交通工程引用本文复制引用
朵永玉,岳清瑞,刘晓刚..碳纤维复合材料拉索的锚固体系研究进展[J].建筑结构学报,2025,46(8):97-113,17.基金项目
国家重点研发计划(2021YFB3704400),中国交通建设集团有限公司科技项目(ZKZX-2023-01). (2021YFB3704400)