Performance-Based Seismic Analysis of RC Multi-storey Framed Building Equipped with Dampers

Earthquake safety assessment of existing buildings is necessary to ascertain their seismic capacity to sustain medium to severe earthquakes because many of them are constructed by individuals without considering the standard design and construction guidelines. The increasing number of ground shakes in the country alarming us to safeguard the built environment from the adverse effects of earthquakes by evaluating and retrofitting the deficient buildings using suitable seismic control technologies. In this project seismic damage assessment of a multi-storey RC building is carried out using performance -based approach (non-linear time history analysis) and the seismic damage state of the buildings is determined based on the maximum inter-storey drift ratio. Four models of G + 14 storey RC building are used in the analysis, namely, bare frame, frame with friction damper and frame with slit damper. In order to perform the non-linear time history analysis, El-Centro earthquake data of maximum PGA of 0.3172 g is scaled to have the ground motions from 0.1 g to 1.0 g. On the basis of the outcome the performance of the building with slit damper works well than the frame with friction damper.