城市高架桥延性抗震体系与减隔震体系对比  

Research on ductility and isolation seismic resistant systems for urban viaduct bridges

作　　者：李树逊 邓青儿[2] 

机构地区：[1]上海浦东工程建设管理有限公司 [2]上海市政工程设计研究院

出　　处：《上海公路》2010年第4期28-31,共4页Shanghai Highways

基　　金：上海市科学技术委员会科研项目(09231200300)

摘　　要：以上海内环线改扩建工程为依托,选取典型标准联高架桥,分别采用延性抗震体系和减隔震体系进行结构抗震设计。对比了两种体系下的结构的抗震性能的具体表现,以及两种抗震体系在经济性上的差异。结果表明,城市高架桥采用减隔震设计体系,不仅可以获得更优的结构抗震性能,还能节省工程造价。A typical viaduct bridge was selected as a background project from the upgrading and expansion engineering of the inner ring viaduct of Shanghai,and a ductility resistant system and an isolation one were designed for the bridge.The seismic performance of the two seismic resistant systems was compared in detail,as well as their economic costs.The results show that the isolation seismic resistant system not only provides a better structural performance in seismic event but also benefits considerably in cost saving.

关 键 词：高架桥 延性抗震 减隔震 经济性 

分 类 号：U442.55[建筑科学—桥梁与隧道工程]