利用多子台积木式模拟振动台台阵系统对一座三跨飞燕式异型钢管混凝土拱桥1:16模型进行了动力试验,主要完成了纵向、横向、竖向、横向+纵向和横向+竖向一致地震动输入和行波输入的对比试验,得到了该结构的加速度、位移、应变及索力响应及其规律,为评价此钢管混凝土拱桥在地震作用下的抗震性能及为今后类似结构的抗震设计提供了试验数据和依据.
This paper makes use of the muhiple sub-table cordwood system to conduct a study on the shaking table test of a three-span irregular CFST arch bridge. The test completed uniform excitation case and traveling wave excitation case that contains longitudinal input, transverse input, vertical input, transverse and longitudinal combinatorial input, and transverse and vertical combinatorial input. The seismic response and response characteristics of acceleration, displacement, internal force of suspenders and tie bars, and strain of structure under earthquake excitations were gained, which could provide test data and basis to evaluate the seismic performance of this CFST arch bridge or other similar structural system design.