To research the suspender replacement technology without interfering with traffic,this paper takes the suspender replacement project of suspension bridge as the background.According to the struc-tural characteristics of the original suspender-rope,considering the different installation ways of the auxiliary bracket on the main cable,straddled and pin-jointed two options are designed.Through the analysis of auxiliary bracket,tension system,reaction beam and stress process,the advantages and dis-advantages of the two options are compared.The results show that the force transmission paths of the two auxiliary brackets are basically the same in the process of replacement sling.As the pin-jointed op-tion adopts the same structural form as the permanent cable clamp,it is ultimately used in the construc-tion.
维普
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