The Effect of Energy Dissipation Systems on the Four- Story Steel Structure by Comparing Them

Abstract

The present study tries to peruse a four- story steel structure by coaxial bracing by using dissipating energy mechanisms and the comparison of these systems. It is obvious that the structure cannot withstand the earthquake forces and should be retrofitted in any way. Therefore, the research examines the performance of resistance structure under San Fernado earthquake record designed in DBE level by embedding the mechanisms of dissipation energy like seismic base isolation system, viscous and pall friction damper. Finally, the values of responses and forces are compared in each case of strength. To compare the effects of systems on main parameters such as stories drift and base shear, input and dissipated energy of structures are studied by various types of systems. The findings suggest the seismic isolation system reduces the base shear in the maximum extent and the friction damper has better performance on energy dissipation.