DBPapers
DOI: 10.5593/SGEM2014/B11/S5.059

EFFECT OF SEMI-ACTIVE TUNED MASS DAMPER TO CONTROL VIBRATIONS OF A THREE-STOREY BUILDING

C. Pastia, S. G. Luca,I. O. Toma
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-07-0 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 1, 443-450 pp

ABSTRACT
This paper presents the numerical results of a semi-active tuned mass damper (STMD) attached to a three-storey building in reducing the response of the structure to harmonic and earthquake excitations. Uncertainties in dynamic characteristics of a structure as well as the frequency content and intensity of the excitation may cause a deterioration of the performance of the passive tuned mass damper (TMD). For these reason a semiactive tuned mass damper with variable damping (linear) is studied. The simulation of the semi-active clipping control strategy is performed in order to select an optimal semiactive damping for improving the performance of the TMD. In addition, this paper shows the STMDs are enough effective to diminish the vibrations induced by harmonic loads and earthquakes.

Keywords:passive tuned mass damper (TMD), semi-active tuned mass damper (STMD), vibration control, earthquake engineering