6TH International Congress on Technology - Engineering - Kuala Lumpur3 - Malaysia (2018-07-19)

Reduction Of Earthquake Response Of Frame Buildings By Viscoelastic Dampers

In this paper the viscoelastic dampers to be used as energy-absorbing devices in buildings. Their advantages and disadvantages, as well as their application on three model structures, have been described. The analytical studies of the model structures exhibiting the structural response reduction due to these viscoelastic devices are presented. In order to exhibit the benefits of viscoelastic dampers, a nonlinear time history analysis is carried out for all case studies: (a) a 7-story steel frame, (b) a 10-story reinforced concrete frame, and (c) a 20-story reinforced concrete frame. The top story relative displacements, as well as the top story absolute accelerations and also the base shear values obtained, indicate that these viscoelastic dampers when incorporated into the super-structure behave like a brake pedal and reduce the earthquake response significantly in proportion to the amount of damping supplied in these devices
Setareh Boostani, S.Mohammad Mirhosseini, Ehsanollah Zeighami