Effect of Viscous Dampers application on the seismic response of a High Rise Building
Keywords:Viscous Dampers (VD), Visco Elastic Dampers (VED)
Earthquakes cause severe damages to large-scale infrastructures. Conventionally, structures are designed to resist dynamic forces through a combination of strength, deformability and energy absorption. These structures may deform well beyond the elastic limit. In order to avoid such critical damages, structural engineers are working to figure out different types of structural systems that are robust and can withstand strong motions. Alternatively, some types of structural protective systems may be implemented to mitigate the damaging effects of these dynamic forces. These systems work by absorbing or reflecting a portion of the input energy that would otherwise be transmitted to the structure itself. The concept of structural control is to absorb vibration energy of the structure by introducing supplemental devices. Various types of structural control theories and devices have been recently developed and introduced to large-scale civil engineering structures. Viscous dampers, when used in high-rise buildings in seismic areas, should reduce the vibrations induced by both strong winds and earthquakes. In the present study, a residential building with 20 floors is analyzed with columns; columns with viscous dampers at different locations were for all the 2 cases. The building is analyzed in Zone 3 & Zone 5 with three soils in both static & Dynamic Analysis using software ETABS. Moments, Shear, Displacement was compared for all the cases. It is observed that the deflection was reduced by providing the viscous dampers.
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