干接缝节段拼装桥墩连续梁桥地震反应分析

Seismic Performance Analysis of a Continuous Girder Bridge with Precast Segmental Bridge Columns Using Match-cast Dry Joints

根据已有的干接缝连接节段拼装桥墩的研究成果,采用集中塑性铰方法对一座节段拼装连续梁桥的抗震性能进行了分析,比较了节段拼装连续梁桥与整体现浇钢筋混凝土连续梁桥地震响应的异同。研究结果表明:节段拼装桥墩桥梁的位移响应大于具有相同骨架曲线的整体现浇普通钢筋混凝土桥墩桥梁的位移响应。集中塑性铰方法可以推广应用到节段拼装桥墩桥梁中进行抗震性能分析。

Based on available research results of precast segmental bridge columns,seismic performance of a continuous girder bridge with precast segmental bridge columns using match-cast dry joints was analyzed with the concentrated plastic hinge method,the similarities and differences of seismic performance between the continuous girder bridge with precast segmental bridge columns and that of cast-in-place reinforced concrete bridge columns were gained.Results show that the displacement response of the continuous girder bridge with precast segmental bridge columns is bigger than that of the continuous girder bridge with cast-in-place reinforced concrete bridges columns.The concentrated plastic hinge method for cast-in-place reinforced concrete bridges could be used to bridges with precast segmental bridge columns.