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（1 中海（海南）海盛船務(wù)股份有限公司， 海口 570125； 2 同濟(jì)大學(xué)土木工程學(xué)院， 上海 200092）

［摘要］變摩擦耗能器能夠提供隨著位移變化而變化的輸出力。描述了三種不同摩擦耗能滯回模型，并對(duì)長周期地震波進(jìn)行了時(shí)頻對(duì)比分析，基于組合概念建立了附設(shè)摩擦耗能器的隔震結(jié)構(gòu)模型。分析結(jié)果表明：附設(shè)摩擦消能器均能夠有效減小結(jié)構(gòu)的位移，在長周期地震動(dòng)作用下，具有啞鈴型滯回曲線的摩擦耗能器對(duì)結(jié)構(gòu)位移和加速度控制效果最好。

［關(guān)鍵詞］變摩擦耗能； 長周期地震動(dòng)； 時(shí)頻分析； 響應(yīng)分析 

中圖分類號(hào)： TU352.1 文獻(xiàn)標(biāo)識(shí)碼： A文章編號(hào)：  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