evaluation of seismic behavior of steel structures equipped with tadas damper with considering the soil - structure interaction

The main elements of the steel moment resisting frames such as beams and columns usually yield to dissipate energy induced by earthquakes energy. however, retrofitting and changing of the damaged primary elements are too difficult.therefore, dampers are used to absorb energy and avoid damage occurrence in beams and columns. in this paper, thestiffness calibration technique is utilized to design steel frames equipped with different types of dampers. this technique mainly relies on two purposes: 1) the drift distribution should be uniform along the height of the structure, 2) the maximum story drift should not exceed the specified values.