高烈度地震区带黏滞阻尼墙和防屈曲支撑框架结构的组合应用研究  

Combined application study of frame structure with viscous damping wall and buckling restrained brace in high seismic intensity region

作　　者：苏恒强[1] 郑静红[1] 陈星[1] 何军[1] 张浩[1] 

机构地区：[1]广东省建筑设计研究院,广州510010

出　　处：《建筑结构》2016年第21期86-90,共5页Building Structure

摘　　要：为解决高烈度地震区框架结构抗侧刚度小、冗余度较低的问题,提出对框架结构增设黏滞阻尼墙与防屈曲支撑(BRB)的方法来提高其抗震性能。阐述了黏滞阻尼墙和BRB的工作机理,并结合工程实例分别对框架结构进行四种工况下(纯框架结构、带黏滞阻尼墙的框架结构、带BRB的框架结构、带黏滞阻尼墙和BRB的框架结构)的小震、中震和大震抗震性能研究。结果表明,在小震和中震作用下黏滞阻尼墙和BRB既能提高框架结构的抗侧刚度,又能更好地耗散能量,框架结构抗震性能较好,两者能够有机地结合起来;在大震作用下,黏滞阻尼墙和BRB滞回曲线饱满,耗能效果明显,是一种值得推广的方式。In order to solve the problem of small lateral structural stiffness and small redundancy of the frame structure in high seismic intensity region, a method was proposed to add viscous damping wall and buckling restrained brace （BRB） in the frame structure to increase seismic performance. The working mechanism of viscous damping wall and BRB was illustrated, and practical engineering was combined to conduct seismic performance study of the frame structure with four working conditions including the frame structure only, the frame structure with viscous damping wall, the frame structure with BRB and the frame structure with viscous damping wall and BRB under the frequent earthquake, fortification earthquake and rare earthquake respectively. The results show that the frame structure with viscous damping wall and BRB not only can increase the lateral stiffness, but also can better dissipate energy under frequent earthquake and fortification earthquake, and the organic combination of frame structure with viscous damping wall and BRB has a better seismic performance. Under the rare earthquake, both the viscous damping wall and BRB have full hysteresis curves with an obvious effect of energy dissipation. Therefore, the frame structure with viscous damping wall and BRB is a design method worthy promotion.

关 键 词：黏滞阻尼墙 防屈曲支撑 框架结构 抗侧刚度 抗震性能 

分 类 号：TU227[建筑科学—建筑设计及理论]