扇形铅粘弹性阻尼器恢复力模型及设计方法研究  

Restoring force model and design method of sector lead viscoelastic damper

作　　者：吴从晓[1] 徐昕[1] 周云[1] 张超[1] 

机构地区：[1]广州大学土木工程学院,广州510006

出　　处：《振动与冲击》2015年第12期18-22,共5页Journal of Vibration and Shock

基　　金：国家自然科学基金(51208128);广东省高等学校科技创新项目(2013KJX0145);城市与工程安全减灾教育部重点实验室项目;广州市场珠江科技新星专项(1517000272)

摘　　要：依据扇形铅粘弹性阻尼器组成材料的特性,给出了阻尼器的构造参数与恢复力学模型之间的关系,推导出该阻尼器恢复力模型公式,给出了阻尼器的设计方法。基于扇形铅粘弹性阻尼器的性能试验结果,对比分析了理论推导结果与试验结果,分析结果表明:扇形铅粘弹性阻尼器的力学性能主要取决于橡胶和铅芯两种材料,可用双线性恢复力学模型对其进行描述;该阻尼器滞回曲线及设计值与试验值吻合度较好,推导的恢复力模型公式合理可行。Based on the material characteristics of the sector lead viscoelastic dampers（SLVD）,the relationship between appropriate structural parameters and restoring force equation was given,and the restoring force model of SLVD was derived.The design method of the damper was given out.The performances of the damper were tested under low frequency cyclic load.The results were compared with those of the numerical simulation and the test.The investigation results indicate that：the mechanical properties of the sector lead viscoelastic damper are mainly depended on rubber and lead and the symmetric bilinear model can be used to describe the restoring force of the damper.The experimental and numerical simulation results of SLVD hysteretic curve are in good agreement.It is feasible to adopt the given model to simulate the damper element.

关 键 词：扇形 铅粘弹性阻尼器 恢复力模型 设计方法 

分 类 号：TU352.1[建筑科学—结构工程]