悬索桥断索动力响应有限元模型参数研究

邱文亮,杨浩荣,吴广润

Parameter study on finite element model of abrupt hanger-breakage event induced dynamic responses of suspension bridge

Wen-liang QIU,Hao-rong YANG,Guang-run WU

表 1 未修正模型的结构模态阻尼比与主缆局部振动阻尼比

Tab.1 Modal damping ratio of structure and local vibration damping ratio of main cable in unmodified finite element model

ξ ξB ξT ξloc 工况1） 工况2） % 0.5 0.48 0.52 3.13 0.17 1.5 1.49 1.47 4.92 0.26 2.5 2.44 2.53 5.94 0.32