This paper dea】 s with the active control of respo 皿se of structures such as bui］ dings and towers using a 加 11ed mass damperwith pendulum and lever mechanism (LP − TMD) ． During a s 重 rong earlhquake ， a stru〔 加 re shows the no 】 11inear respoIlse due to hystereticres10ring force alld the 1he changes in stiffness and damping occur ． Theref()re ， tlle colltrol system shou 工 d have the robustness ． 111 this paper ， a sliding mode co 皿 tro工methodwitll strong robustlless is iltroduced to control the response of I】onlinear s重 ructure ． The active control system of TMD with pelldulum and lever based on the sliding mode co 皿trol method is applied to the f()ur − degree − of − freedom

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