000022453 001__ 22453
000022453 005__ 20170622150015.0
000022453 04107 $$aeng
000022453 046__ $$k2015-05-25
000022453 100__ $$aNgamkhanong, Chayut
000022453 24500 $$aEFFECTIVENESS OF TUNED MASS DAMPER IN DAMAGE REDUCTION OF BUILDING UNDER FAR-FIELD GROUND MOTIONS

000022453 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022453 260__ $$bNational Technical University of Athens, 2015
000022453 506__ $$arestricted
000022453 520__ $$2eng$$aDamage reduction of existing tall buildings subjected to earthquake ground motions has been studied in recent decades. Seismic base isolations, strengthening of structural system and installation of damping devices such as viscous dampers, friction damper and buckling restrained brace, have also been introduced to either reduce the seismic demand, improve the strength or dissipation characteristics of the building. However, their applications are very limited since their investment costs seem to be prohibited. A tuned mass damper (TMD) installed at rooftop is proposed as an alternative method to reduce the seismic damage of the existing tall buildings under far-field earthquake excitations. Due to the long duration and narrow band nature of far-field excitation, its application becomes effective. In addition, the cost of the TMD is more attractive comparing to other seismic control systems. However, the performance of TMD might be seriously impaired due to the degradation of structural stiffness caused by severe earthquake. Therefore the real application of the TMD has to be extensively investigated. This paper studies the damage behavior of tall building under various magnitudes of harmonic and recorded ground motions. The dynamic inelastic analysis is employed. The effectiveness of TMD having mass ratio of 5% is evaluated considering the building’s damage and performance. The obtained simulation results reveal the effectiveness of the TMD under various intensities of ground motions.

000022453 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022453 653__ $$aTuned mass damper, Damage reduction, Inelastic structures

000022453 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022453 720__ $$aNgamkhanong, Chayut$$iPinkaew, Tospol
000022453 8560_ $$ffischerc@itam.cas.cz
000022453 8564_ $$s717353$$uhttps://invenio.itam.cas.cz/record/22453/files/C878.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022453 962__ $$r22030
000022453 980__ $$aPAPER