张玉良  汤昱川  张铜生 （清华大学土木工程系  北京 100084）

[提要] 对应杆系－层动力分析模型，推导了速度相关型阻尼器的单元刚度矩阵和单元阻尼矩阵，并在HBTA程序中实现对设置速度相关型阻尼器减震结构的非线性时程分析，对一个设置线性粘滞阻尼器的钢框架模型，用HBTA对其进行地震反应时程分析，并与SAP2000软件的计算结果进行对比。最后，用HBTA计算一个设置粘弹性阻尼器的钢筋混凝土结构在罕遇地震影响下的非线性时程反应，并比较了粘弹性阻尼器的不同计算模型对减震效果的影响。
[关键词] 速度相关型阻尼器  减震结构  时程分析  非线性

The element stiffness matrix and element damping matrix of velocity-depended damper in member-story model are presented. On the basis of program HBTA,an updated version of HBTA is programmed which can make nonlinear analysis for seismlc mitigation structure with velocity-depended dampers. The seismlc response of a steel frame moclel is analyzed by HBTA,and the results are compared with those from SAP2000. Time-history analysis for a reinforced concrete structure under intensive earthquake excitation is performed, and different effects of different analytical models for viscoelastic damper are compared.
Keywords: velocity-depencled damper; seismic mitigation; time-history analysis; nonlinear behavior

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