Influence of Various Arrangements of Viscous Dampers on RCC Framed Buildings

In recent years, there has been an increase in high-magnitude earthquakes, which has led to a need for research on seismic protection and its importance in safeguarding structures such as buildings and bridges. Adding supplementary damping to the structure can help reduce dynamic responses and base shear demand. Energy dissipation devices such as fluid viscous dampers (FVDs) are often used to mitigate structural sway during seismic activity. The proposed thesis aims to study the effect of a viscous damper on the seismic performance of RCC-framed buildings. In this study, 3-D models of Four and Twelve story RCC frame building structures generated in the ETABs finite element package with and without diagonally placed viscous dampers in different configurations and placed in various locations throughout the structure will be subjected to earthquake loadings and the study will be carried out to investigate the influence of viscous damper configuration and location. The results obtained will also be used to identify optimal damper arrangement and placement for seismic mitigation. The results of the seismic performance of buildings with viscous dampers will be compared with the buildings without viscous dampers. The ETABs software will be used for modeling and analyzing various structures with and without viscous dampers and non-linear time history analysis methods will be adopted. The results obtained will be compared in the form of displacement, story drift, and Base shear. Also, the comparison of energy dissipation of dampers in different arrangements will be done in terms of link damper energy. One of the primary findings from the study underscores the crucial role of the damping system in enhancing the seismic resilience of the building. The research also confirms that integrating fluid viscous dampers into the structure leads to notable reductions in key structural metrics like displacement, drift, and shear. Moreover, the damping system substantially diminishes the building's susceptibility to seismic damage.