（1 中海（海南）海盛船务股份有限公司， 海口 570125； 2 同济大学土木工程学院， 上海 200092）

［摘要］变摩擦耗能器能够提供随着位移变化而变化的输出力。描述了三种不同摩擦耗能滞回模型，并对长周期地震波进行了时频对比分析，基于组合概念建立了附设摩擦耗能器的隔震结构模型。分析结果表明：附设摩擦消能器均能够有效减小结构的位移，在长周期地震动作用下，具有哑铃型滞回曲线的摩擦耗能器对结构位移和加速度控制效果最好。

［关键词］变摩擦耗能； 长周期地震动； 时频分析； 响应分析 

中图分类号： TU352.1 文献标识码： A文章编号：  1002-848X(2016)S1-0423-06

Comparative analysis of the dynamic response of variable friction energy 

dissipation structure under long-period earthquake

Guo Rujiong1, Fu Xuxia2

(1 China Shipping Haisheng Co.,Ltd., Haikou 570125, China;

 2 College of civil engineering, Tongji University, Shanghai 200092, China)

Abstract: The variable friction damper can provide the variable output power with the change of displacement. It described three different kinds of friction energy dissipation hysteretic model, carried out on comparative analysis of long-period seismic wave spectrum. The isolated structure model with friction damper is established based on the combination of concept. The results show that structure with friction damper can effectively reduce displacement. Under the long-period earthquake, the control effect of structural displacement and acceleration with variable friction damper with dumbbell shaped hysteresis curve is the best.

Keywords: variable friction energy dissipation; long-period earthquake; time frequency analysis; response analysis