一种墩底隔震高架桥梁结构体系  

Study of base-isolated viaduct system

作　　者：曹飒飒[1] 孙卓[1] 闫聚考[2] 叶锡钧[1] 关青锋 

机构地区：[1]广州大学土木工程学院,广东广州510006 [2]石家庄铁道大学河北省大型结构健康诊断与控制重点实验室,河北石家庄050043

出　　处：《地震工程与工程振动》2017年第5期162-168,共7页Earthquake Engineering and Engineering Dynamics

基　　金：广州大学科技创新培育基金项目(CSS2-2608)~~

摘　　要：基于可快速修复的理念,提出一种墩底隔震的城市高架桥梁结构体系。探讨了新型结构体系的设计原则、施工难点和独特的抗震构造措施。以某高架桥为实例,将新型体系和传统的墩顶隔震体系进行对比研究。结果表明:与墩顶隔震体系相比,新型体系的支座位移和桥墩最大弯矩基本相同,但是对桩基的抗震要求有很大程度的降低;新型体系的整体性更好。Based on resilient design method, a base-isolated viaduct system was proposed. Design principles, construction difficulties and special aseismic measures were discussed. With an exafnple of a viaduct, effects of the proposed system and traditional isolated viaduct system were compared. It turns out that bearing deformations and the maximum moment of piers of the proposed system are almost the same as the traditional isolated systems. However, demands of piles of the new system are very low compared with traditional isolated viaduct systems. Moreover, it has good integrity.

关 键 词：墩底隔震 可恢复 高架桥 抗震设计原则 

分 类 号：U448.28[建筑科学—桥梁与隧道工程] P315.9[交通运输工程—道路与铁道工程]