A method of calculating cable change parameters for cableway bridges

Abstract

This study presents a proposed method for calculating replacement parameters for cableway bridges which takes into consideration various factors, such as stabilizing beams, temperature, and slack, during the replacement construction process. The utilization of this method can effectively address the current short service life of cableway bridges. In this paper, the mechanical aspects of the inverse stress-free cable length based on the mid-span drape of a stable cable with a stable beam, the linear equation of cable deflection considering temperature variation, and the theory of cable slack are analyzed. A cableway bridge is used as the engineering background, and ANSYS analysis confirms the validity of the theoretical derivation of the inverse stress-free cable length based on the mid-span drape of the stabilized cable with stabilizing beam and the linear equation of cable deflection considering temperature change,And the correctness of cable slack theory was verified by slack static test. The calculation results demonstrate that the proposed method is both simple and accurate, thereby meeting the practical needs of engineering. As such, this method can be applied by researchers and engineers in the structural analysis, design, and construction of cableway bridges.