Citation: | ZENG Yongping, LIU Liwei, TAO Qi, WAN Xing, ZHANG Xun, JIA Hongyu. Analysis of Impact Effect of Cable Breakage in Half-Through Railway Arch Bridges with CFRP Cables[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20240555 |
To study the effect of cable breakage on the impact response of concrete-filled steel tube arch bridges and the difference in safety factor requirements between carbon fiber reinforced polymer (CFRP) cables and steel cables, the dynamic response of a railway bridge under accidental cable breakage was analyzed. A spatial finite element model was established by ANSYS. The force characteristic variations of the residual structure of the arch bridge under five cable breakage conditions were studied based on the equivalent unloading method. The impact sensitivity of the structure after cable breakage was evaluated by dynamic amplification factor (
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