双塔斜拉刚构组合体系桥梁振动台试验研究

摘要:

双塔斜拉刚构组合体系桥受力复杂,结构地震响应十分复杂,以永定河特大桥为背景,设计并制作了1∶ 40缩尺比例模型,进行了全桥振动台模型试验。借助CATIA-BIM模型根据相似比设计结构复杂试验模型,动力特性结果证明了模型桥的可靠性。根据模型桥试验结果可知,支座位移满足设计要求。

Abstract:

The double-tower cable-stayed rigid-frame composite system bridge has complex stress and structural seismic response. Taking the Yongding River Bridge as the background, a 1∶40 scale model was designed and produced, and the whole bridge shaking table model test was carried out. With the help of the CATIA-BIM model, the structural complex test model is designed according to the similarity ratio, and the dynamic characteristic results prove the reliability of the model bridge. According to the test results of the model bridge, the displacement of the bearing meets the design requirements.