摘要
以一座三跨连续梁桥为例,根据是否考虑"上部结构—桥台—填土"相互作用和桥台强度贡献建立三种桥台模型,结合不同的地震动输入研究桥台模拟方法对连续梁桥纵向地震反应的影响。分析结果表明,"上部结构—桥台—填土"相互作用可能会对主梁位移和桥墩地震响应产生较大影响,但是否考虑桥台强度贡献对桥梁地震响应结果影响较小。
Three different abutment models for a three span continuous bridge were established, based on whether the superstructure-abutment-backfill interaction and abutment strength were considered or not. The seismic responses of the bridge were compared with different ground motions. The result showed that the superstructure-abutment-backfill interaction has great influence on girder displacement and dynamic response of piers, but abutment strength has little impact on the dynamic response of the bridge.
出处
《结构工程师》
北大核心
2016年第1期85-91,共7页
Structural Engineers
