a Pezeshki - Department of Civil Engineering, Islamic Azad University, Science and Research Branch, Tehran, Iran
f Behnamfar - Department of Civil Engineering, Isfahan University of Technology, Isfahan, Iran

an iterative method for the damage based design of building frames is proposed . The iteration begins from a primary structure which can have any desired distribution of stiffness or strength . However the final response is always unique . Structural damage both in stories and members levels are sistributed according to different patterns and response results are compared to the IBC2006 design by use of a certain damage index.inall stages the strong column weak beam yield mechanism based on yielding of beams of a story before its columns is enforced.

damage-based seismic design , optimum strength and stiffness distribution, inelastic deformation , moment resisting frame MRF