摘要
通过对三跨连续铁路刚架桥非线性地震反应分析，阐述了刚架桥在强震作用下的破坏机理及其抗震延性特征；并结合国内外钢筋混凝土结构延性理论与试验研究成果，为满足连续刚架桥抗震延性要求提出了立柱横向约束钢筋的配置方法。
In this paper, the seismic responses of the three-span continuous railway rigid-frame bridge are analysed. The breakage mechanism of the rigid-frame bridge under strong earthquake is expounded. The seismic ductility character of the railway continuous rigid-frame bridge is set forth. The arrangement method of confining reinforcement for reinforced concrete columns is supposed by means of the theory and test research results of reinforced concrete structure ductility in the world.
基金
铁道部科技研究开发计划项目
关键词
地震反应
延性分析
铁路桥
连续刚架桥
rigid-frames bridges, seismic response analysis, ductility analysis
