十字芯板钢管阻尼器力学性能研究  

Mechanical performance of steel tube damper with cross core plates

作　　者：胡强[1,2] 贾松林[1] 王丹[1] 唐咸远[1] 陈劲飙[1] 

机构地区：[1]广西科技大学土木建筑工程学院,广西柳州545006 [2]广西大学广西防灾减灾与工程安全重点实验室,广西南宁530001

出　　处：《四川建筑科学研究》2017年第6期66-71,共6页Sichuan Building Science

基　　金：广西自然科学基金(2013GXNSFAA019311)

摘　　要：提出了一种由钢管与十字芯板组成的新型金属阻尼器,介绍了其构造形式、特点及工作机理,建立了有限元模型,研究了阻尼器的耗能机理与破坏形态,以及高宽比、厚径比、削弱比、厚度比对屈服剪力、极限剪力、延性和耗能能力的影响。结果表明,该阻尼器具有较好的受剪承载力、优秀的延性和耗能性能,且有3种耗能模式和2种破坏形态,并给出了阻尼器设计参数的取值范围。A new metallic damper composed of steel tube and cross core plates is put forward,and configuration, characteristics and work mechanism of the damper are introduced. A finite element model is set up to analyze influences of various geometric parameters on mechanical performance of the damper and to generalize energy-dissipated mechanism and failure modes. The results indicate that the damper with excellent shear bearing, ductility and energy dissipation has three kinds of energy-dissipated modes and two kinds of failure modes. Finally the constructing design parameters of the damper are proposed.

关 键 词：钢管阻尼器 十字芯板 耗能性能 有限元分析 

分 类 号：TU352.1[建筑科学—结构工程]