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SEISMIC RESPONSE CONTROL OF A BUILDING INSTALLED WITH PASSIVE DAMPERS

Seismic response control using passive dampers is most cost effective, satisfied the architectural requirement of opening and recent technique to control the vibrations of structures arising due to dynamic loading. This study investigates the influence of mechanical control on structural systems through strategically applying reliable dampers that can modulate the response of building. SAP2000 nonlinear time history analysis program was applied to investigate the effects on building such as normalized base shear, tip displacement, normalized acceleration and energy dissipation of damper element by varying different important parameters namely Earthquake time histories, location of dampers, damping coefficient, damper stiffness, no of story of building. Comparison study is also presented between building installed with dampers, building installed with diagonal bracing, combination of both and simple building to show importance of damping system for reduction of seismic quantities. Finally, the building installed with damping system is very effective and reliable solution to reduce very vital seismic quantities such as base shear, floor displacement, and floor acceleration and also mitigate architectural requirement which cannot be satisfied by shear walls.