超高强桥梁缆索用多元合金锚固材料研究  

Discussion on the research of multi‑alloy anchoring materials for ultra‑high‑strength bridge cables

作　　者：费汉兵 王彦策 吴琼 FEI Hanbing;WANG Yance;WU Qiong(FASTEN Group Co.,Ltd.,Jiangyin 214445,China)

机构地区：[1]法尔胜泓昇集团有限公司,江苏江阴214445

出　　处：《现代交通与冶金材料》2024年第1期89-94,共6页Modern Transportation and Metallurgical Materials

基　　金：国家重点研发计划项目(2022YFB3706702);江苏省科技成果转化专项资金资助项目(BA2023029)。

摘　　要：桥梁缆索采用热铸锚方式锚固,具有强度高、耐久性好的优点,适于缆索百年服役的要求。分析了热铸锚的结构和锚固机理,合金锚固材料是影响热铸锚锚固性能和耐久性的主要因素,而Al,Cu,Mg,RE等成分和含量决定了合金锚固材料的性能。针对2100 MPa及以上强度超高强缆索,提出了热铸锚用合金锚固材料的物理性能、力学性能、防腐性能和流动性要求。根据这些影响因素和性能要求,建议按“性能指标构建-成分体系设计-模型试验研究-灌锚装备研发-灌锚工艺研究”的路线进行新型多元合金锚固材料研究。Hot-cast anchors,with the advantages of high strength and durability,are adapted to the re⁃quirements of a 100-year service life of the bridge cables.The structure and anchoring mechanism of hot-cast anchors are analyzed.The alloy anchoring material is the main factor affecting the anchoring performance and durability of hot-cast anchors,whereas the composition and content of Al,Cu,Mg,and RE determine the performance of the alloy anchoring material.For the ultra-high-strength bridge cables of 2100 MPa and above,the physical properties,mechanical properties,corrosion resistance and fluidity requirements of the alloy anchoring materials for its hot-cast anchors are presented.Based on these influencing factors and performance requirements,it is recommended to carry out research on the new multi-alloy anchoring materials according to the route of"construction of performance indica⁃tors-design of component system-model test research-research and development of anchoring equip⁃ment-research on anchoring process".

关 键 词：桥梁缆索 热铸锚 锚固材料 超高强 多元合金 

分 类 号：U443.38[建筑科学—桥梁与隧道工程] U445.58[交通运输工程—道路与铁道工程]