为满足升降温、收缩徐变等静力工况需求,连续梁桥支座布置形式在纵向一般只设一个固定支座,这样在结构发生振动时,最终固定支座处的固定墩及上部结构共同构成了“一点固定式振动单元”。所以对于固定墩及墩上的固定支座的地震响应将尤其要注意。本文利用延性设计思想对某连续梁桥进行了抗震设计,给出了非常清晰的延性设计流程。 In order to meet the needs of static conditions such as temperature rise, shrinkage and creep, the continuous beam bridge bearing arrangement generally has only one fixed bearing in the longitudinal direction, so that when the structure vibrates, the fixed pier and superstructure at the final fixed bearing Together constitute a “fixed-point vibration unit ”. Therefore, special attention should be paid to the seismic response of fixed supports on piers and pier. In this paper, the seismic design of a continuous girder bridge is made using the ductile design method, and a very clear ductility design flow is given.