COMPARATIVE STUDY ON THE DYNAMIC RESPONSE OF RC 3-D FRAMES WITH AND WITHOUT VISCOUS DAMPERS

Aishwarya.M.M, Shilpa.B.R

Abstract: A structure can be called as earthquake safe if it is able to oppose the dynamic energy prompted by ground movement. It is impractical to make structure seismic safe all by its properties, for example, damping, stiffness and mass. In such cases we might have to give some outer device which either can oppose the force or ingest the dynamic power. Dampers, Bracings, Isolators are some viable gadgets which are the best reasonable instruments to moderate the quake powers. In the present work an endeavor is made to minimize the dynamic reaction of the building by the establishment of inclining dampers. Response spectrum analysis is performed for G+5, G+10 and G+15 story 3-D structures for all the Indian seismic zones and medium soil condition. Dampers are installed in different patterns of mid-storeys(DMSD), alternative storeys(DTAS), and top five storeys(DTFS).Natural time period of structure, displacement, inter-storey drift ratio and accelerations are obtained. A comparative study is done on the models with and without viscous dampers(WOD) using SAP v 2000 software.

Keywords: Viscous Dampers, Modal Analysis, Response spectrum Analysis

DOI: https://doi.org/10.15623/ijret.2016.0506075