变刚度钢管混凝土短柱隔震装置滞回曲线的研究  

STUDY ON HYSTERETIC CURVE OF VARIABLE STIFFNESS BASE ISOLATOR MADE OF CONCRETE-FILLED STEEL TUBULAR SHORT COLUMN

作　　者：成世峰[1] 张玉良[1] 张铜生[1] 

机构地区：[1]清华大学土木工程系,北京100084

出　　处：《工程力学》2006年第A01期117-121,共5页Engineering Mechanics

摘　　要：在王焕定等人试验的基础上,针对变刚度钢管混凝土短柱隔震装置提出了便于弹塑性时程分析中应用的双向恢复力模型。本模型采用光滑连续函数来模拟该隔震装置的恢复力,并将该隔震装置的摩擦力模型化为速度相关型阻尼力。模型的控制参数可以直接从试验曲线中获得。On the experiment of Wang Huan-ding, an elasto-plastic biaxial hysteretic model for variable stiffness base isolator made of concrete-filled steel tubular short column is proposed in this paper. The proposed model can be used for elasto-plastic analysis of structure easily. Continuous smooth functions are used in the hysteretic model. The frictional forces are modeled as a velocity-dependent damping force. The requisite parameters of the proposed model can be acquired directly from the test curves of the bearing.

关 键 词：变刚度 隔震 钢管混凝土短柱 恢复力 滞回曲线 

分 类 号：TU352.1[建筑科学—结构工程]