Seismic Response Control of RCC building with Plan and Vertical Irregularities using Dampers

Earthquakes can be devastating for cities due to mid and high-rise buildings, as these structures are vulnerable to shaking due to earthquake forces. The effects of earthquake magnify when buildings are constructed with plan or elevational irregularities. To address this issue, in this study, building models with plan and vertical irregularities are analyzed using nonlinear time history analysis. Further, fluid viscous dampers are designed for both types of buildings using Performance based methodology. The response of buildings during seismic events for all models with plan and vertical irregularities is checked with and without dampers. The storey displacements, base shear, element forces and energy dissipation of dampers is compared for the various time history earthquake records. It was observed that, the design of fluid viscous damper changes drastically when irregularities comes into picture. Also, an increase in base shear, axial force values while decrease in storey displacement, shear forces, bending moment values was observed due to inclusion of dampers. It is found that the dampers in structures are effective in resisting earthquake forces.