黏弹性阻尼器的耗能比研究  

Study on Energy Dissipation Ratio of Viscoelastic Damper

作　　者：戴宇杰 潘文[1,2] 双超 唐建余 姜俊成 Dai Yujie;Pan Wen;Shuang Chao;Tang Jianyu;Jiang Juncheng(School of Architectural Engineering,Kunming University of Science and Technology,Kunming 650500,China;Institute of Earthquake Engineering,Kunming University of Science and Technology,Kunming 650500,China)

机构地区：[1]昆明理工大学建筑工程学院,昆明650500 [2]昆明理工大学工程抗震研究所,昆明650500

出　　处：《科技通报》2024年第1期65-70,90,共7页Bulletin of Science and Technology

摘　　要：黏弹性阻尼器是一种典型的被动控制装置,它可以通过黏弹性材料的剪切滞回耗能起到减小结构地震或风振响应的作用。本文采用阻尼器耗能占地震总输入能量比值(耗能比)评估黏弹性阻尼器的减震效率,相比采用水平位移比的评价指标更能直观地反映阻尼器耗能能力。本文采用Kelvin模型推导出结构弹性和弹塑性2种状态下附加黏弹性阻尼器耗能比计算公式,算例计算结果表明:推导的计算公式有很好的精度和准确性,可供工程设计使用。Viscoelastic damper is a typical passive control device.It can reduce the seismic or wind-induced response of the structure through the shear hysteretic energy dissipation of viscoelastic materials.In this paper,the energy dissipation ratio of the damper to the total input energy of the earthquake(energy dissipation ratio)is used to evaluate the damping efficiency of the viscoelastic damper.Compared with the evaluation index of horizontal displacement ratio,it can more intuitively reflect the energy dissipation capacity of the damper.In this paper,the Kelvin model is used to derive the calculation formula of the energy dissipation ratio of the additional viscoelastic damper in the elastic and elastoplastic states of the structure.The calculation results of the example show that the derived calculation formula has good accuracy and accuracy,which can be used for engineering design.

关 键 词：黏弹性阻尼器 减震 SAP2000 耗能比 

分 类 号：TU352[建筑科学—结构工程]