一种放大位移型SMA阻尼器的减震控制分析-地震工程与工程振动.PDFVIP

2 8 5 V o.l 2 8 N o. 5 2008 10 JOURNAL OF EARTH QUAKE ENG IN EER ING AND ENG INEER ING V IBRAT ION O ct. 200 8 : 2008) SMA 禹奇才, 刘春晖, 刘爱荣 ( , 5 10006 ) : ( SM A ) , SMA , 2, E l C entro T a ft , : ( 1) SMA SM A ( 2) SMA : : P315. 966 : A The analy sis of structure vibration con trol by u sing shap e m em ory alloy dam p ers w ith m agn ifying story drift YU Q ica,i L IU Chunhu i, L IU A irong ( S choo l of C iv il Engin eering, G uangzhou U n ivers ity, G u angzhou 510006, Ch ina) Abs tract: A k ind of newtype SMA dam per is designed on the b asis o f supere last ic o f sh ap e m emo ry a lloy. The f in ite elem en t m odel of fram e stru cture w ith SMA dam pers is set up, wh ich is ana lyzed in the smi ulation o f v ibrat ion con tro l. By inputting E l Cen tro and T aft earthqu ake ground m otion s, three d ifferen t situ ation sw hich consist o f no t in stal ling dam per, in sta lling dam per and in stalling damp er w ith m agnifying double sto ry drift are com p ared. T he results show: ( 1) the e ffect of v ibration contro l on the d isplacem en t is better th an th at on the acceleration ( 2) the effect o f v ibration contro l of SMA w ith m agn ify ing doub le story drift is better than the dam p er not m agnifying story drift. K ey w ord s: sh ape m em ory a lloy( SMA ) damp er stru cture vibration control ( Shape M em ory A lloy, SMA ) , , [ 1] , SMA