The Structural Engineer > Archive > Volume 84 (2006) > Issues > Issue 1 > Mitigating seismic response of shear wall structures using embedded dampers
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Mitigating seismic response of shear wall structures using embedded dampers

This paper presents a study on mitigating the seismic response of shear wall structures by using dampers strategically located within them. The stiffness of the cut out section of the shear wall is replaced by the stiffness and damping of the device. Friction, viscoelastic and hybrid dampers in different configurations and at different locations are used to evaluate the peak deflections and accelerations, under several earthquake records. Results from this conceptual study have demonstrated the feasibility of using these dampers to mitigate the adverse seismic effects of these structures for a range of excitations, even when the dominant seismic frequencies match the natural frequency of the structure. Julius Marko, BE (Civil) School of Urban Development, Queensland University of Technology,Brisbane, Queensland, Australia Prof. David P. Thambiratnam, BSc(Eng) Hons, MSc, PhD, CPEng, FICE, FASCE, FIEAust School of Urban Development, Queensland University of Technology, Brisbane, Queensland, Australia N. J. Perera, BSc(Eng) Hons, CPEng, FIStructE, FIEAust MD, Bird & Marshal Ltd, UK

Author(s): Marko, Julius;Thambiratnam, David P;Perera, N J

Keywords: earthquakes;vibration;damping;shear walls;modelling