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斜拉桥的结构体系对其地震响应特性有较大影响,研究表明,通过在塔梁之间设置合理的弹性连接,可以起到改善斜拉桥抗震性能的效果。但目前研究多是针对具体工程而得出相应的结论,而没有考虑到斜拉桥桥面相对高度对斜拉桥塔梁间弹性连接装置减震效果的影响。为此以某斜拉桥为模型,通过改变其下塔柱高度的方式改变斜拉桥桥面相对高度,系统分析了桥面相对高度对斜拉桥塔梁弹性连接装置减震效果的影响。
The structural system of the cable-stayed bridge has a great influence on the seismic response characteristics. The research shows that the reasonable elastic connection between the tower girders can improve the seismic performance of the cable-stayed bridge. However, most researches are based on the specific engineering and draw the corresponding conclusions without considering the influence of the relative height of the cable-stayed bridge deck on the damping effect of the elastic connection device of the cable-stayed bridge. Therefore, taking a cable-stayed bridge as a model, the relative height of the cable-stayed bridge was changed by changing the height of the lower pylon. The effect of the relative height of the bridge deck on the seismic response of the elastic connecting device of the cable-stayed bridge was analyzed.