Discussion on the research of multi-alloy anchoring materials for ultra-high-strength bridge cables
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".
NETL
NSTL
万方数据
维普
