连续刚构桥上应用的减隔震技术在地震作用下会造成较大位移并且导致桥面板之间碰撞,超过伸缩缝间距会造成落梁。该文主要针对隔震桥梁的碰撞,以一座五跨连续梁桥为研究对象,用OpenSees软件建立其有限元模型并且对结构进行非线性动力时程分析,并且用云图法对计算结果进行了易损性分析,分析结果显示隔震桥梁在地震作用下桥面板更容易发生碰撞,并且伸缩缝的尺寸对于碰撞有非常重大的影响。 Seismic isolation and seismion technology applied to continuous rigid frame bridges causes large displacements under the earthquake and causes collision between the bridge deck plates, causing the beam to fall off more than the gap between expansion joints. In this paper, aiming at the collision of isolated bridges, a five-span continuous girder bridge is taken as the research object. The finite element model is established with OpenSees software and the nonlinear dynamic time history analysis of the structure is carried out. The analysis of the damage shows that the bridge deck is more prone to collision under earthquake and the size of the expansion joint has a very big impact on the collision.