装配整体式混凝土高层建筑结构黏滞阻尼器减震设计  

Seismic Energy Dissipation Design on a Precast Monolithic Reinforced Concrete Frame Structure in Shanghai

作　　者：耿耀明 刘文燕[2] GENG Yaoming;LIU Wenyan(Tongji Architectural Design(Group)Co.,Ltd.,Shanghai 200092,China;Department of Civil Engineering of Shanghai University,Shanghai 200444,China)

机构地区：[1]同济大学建筑设计研究院(集团)有限公司,上海200092 [2]上海大学土木工程系,上海200444

出　　处：《结构工程师》2018年第5期25-30,共6页Structural Engineers

基　　金：上海市科委科研计划项目(18DZ1205700)

摘　　要：上海某装配式高层建筑,预制率不低于45%,结构体系采用设置黏滞阻尼器的装配整体式钢筋混凝土框架结构。时程分析结果表明:多遇地震作用下,附加黏滞阻尼器结构较常规结构的首层地震剪力平均减小约35%,最大层间位移角平均减小约40%,黏滞阻尼器的平均耗能比例高达64%,黏滞阻尼器消能减震效果明显;罕遇地震作用下,结构最大层间位移角为1/158,结构屈服机制合理,结构塑性变形满足"生命安全LS"性能目标,结构构件的损伤程度轻,大震下结构抗震性能良好。The plane of a high-rise building in Shanghai is irregular.More than 45%components of the structural system are prefabricated,and an energy-dissipation precast monolithic reinforced concrete frame structure with viscous fluid dampers is adopted in the design process.The results of the time history analysis show that:the seismic shear force of structure with viscous fluid dampers decreases by 35%,and the inter-story drift angle decreases by 40%than the ordinary structure.The viscous fluid dampers can dissipate more than 64%seismic energy under frequent seismic action.The maximum inter-story drift angle is 1/158 under rarely occurred earthquake.The yield mechanism is proper,and the plastic deformation capacity can meet the performance objective.The seismic behavior of the whole structure is good under rarely occurred earthquake.

关 键 词：非线性黏滞流体阻尼器 消能减振 装配整体式 高层建筑 弹塑性时程分析 

分 类 号：TU973[建筑科学—结构工程]