The demand for the increasing crossing capacity of cable-supported bridges leads to improve-ments in the strength of cable steel wires and their anchoring strength.The mechanical properties of multiple new zinc-based multi-element alloy anchoring materials are investigated by using the com-monly employed hot cast anchor for bridge cables as the object of the study.The impact of varying compositions and concentrations on the tensile strength,compressive strength,elastic modulus,and creep resistance of the alloy is analyzed.Pull-out tests are conducted on five optimized anchoring mate-rials,and the bonding performance under different parameters is compared.The results demonstrate that the ZnAl9Cu1MgRE alloy exhibits high tensile strength and compressive yield strength,low elas-tic modulus,and excellent creep resistance,thereby exhibiting an optimal overall performance.The identified failure modes are classified as steel wire pull-out and steel wire rupture.The ZnAl6Cu1 alloy demonstrates the most favorable bonding performance,followed by the ZnAl9Cu1MgRE alloy.
关键词
桥梁缆索/锚固材料/粘结性能/试验研究
Key words
bridge cables/anchoring materials/bonding performance/experimental study
维普
万方数据