Analysis of Dynamic Response and Current-Carrying Capacity of Bridge-along Cable under Typhoon Load

Abstract In order to study the structural dynamic response and load capacity of bridge-along cable under typhoon load, in this paper, two laying environments, including steel box girder platform, are taken as research object. Shiyuan spectrum harmonic superposition method adopted obtain wind speed time history curves corresponding different scales force, then wind-induced pulsating displacement platform is calculated by using curve. The electromagnetic-thermal-structure coupling model established, obtained applied a boundary condition its characteristics. eccentricity XLPE insulation used evaluation index current-carrying force environments. simulation results show that maximum stress amplitude on metal layer occurs near clamp during cables forced move load. higher lower allowable capacity. Under 10, not affected weather; 11, dropped 17.2%; 12, 47.7%; 13, recommended work. provide theoretical guidance for assessing power supply reliability disasters.