橡胶缓冲装置对斜拉桥与引桥碰撞影响研究

国内外对斜拉桥的抗震性能研究比较完善，取得了丰富的研究成果，斜拉桥的抗震性能一般均能满足抗震需求，但在以往地震中却发生过多座斜拉桥伸缩缝破坏或引桥落梁震害。针对目前大跨度斜拉桥与引桥之间碰撞问题的研究还不够深入，对斜拉桥与引桥之间防碰撞措施的研究还不够系统这一问题，研究了橡胶缓冲装置对斜拉桥与引桥之间碰撞响应的减震效果，分析了橡胶缓冲装置结构参数对斜拉桥与引桥之间碰撞响应的影响规律。

The influence study of rubber buffer devices on the collision of cable-stayed bridge and approach span

The study of the cable-stayed bridge seismic behavior at home and abroad is relatively perfect, and abundant researching achievements are got. The seismic performance of the cable-stayed bridge ordinarily can reach seismic requirements, but the cable-stayed bridge expansion joint damage and approach bridge beam collapse are often happened in past earthquakes. As the research on the collision problem between the cable-stayed bridge and approach span is not overall deeply, and the anti-collision measures study between cable-stayed bridge and approach span is not systematically enough. The shock absorption effect of rubber buffer devices on the impact responses of cable-stayed bridge and approach span is researched, the influence law of the rubber buffer devices structural parameters on the impact responds of cable-stayed bridge and approach span is analyzed systematically.