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高墩大跨径的连续刚构桥因其自身的优势,在西部地区广泛应用,但是其抗震性能及发生固结损伤后结构的自身振动特性有何变化至今研究尚少。本文正是基于此原因,基于一实际的高墩大跨径连续刚构桥为基础,在有限元软件Midas/Civil2010中建立仿真模型,针对边墩和次边墩,桥墩不同位置及高低墩等发生相同固结损伤破坏时,对结构固有的振动特性的影响进行了分析,并得出了一些有益的结论,可以加深人们对于连续刚构桥受破坏后的振动行为认识并为设计提供一定的参考。
Due to its own advantages, the continuous rigid frame bridge with high pier and long span has been widely used in the western region. However, its seismic performance and the change of its own vibration characteristics after the consolidation damage are still scarce. Based on this reason, based on an actual high-pier and long-span continuous rigid frame bridge, this paper builds a simulation model in the finite element software Midas / Civil2010 for different positions of pier and pier, pier and pier When the damage of the same consolidation damage occurs, the influence of the inherent vibrational characteristics of the structure is analyzed and some useful conclusions are drawn, which can deepen people’s understanding of the vibration behavior of the continuous rigid frame bridge after the damage and provide certain design reference.