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Due to the importance of Retrofitting and researches done about it, and the importance of selecting a good lateral resisting system, this paper is going to use Steel Slit Panel to retrofit available buildings and see its effect. This is a new system suitable for high seismic region. Some benefits of this system are its ductile behavior and ability to dissipate energy, architectural flexibility, simple fabrication and installation and its easy replacement. In this research the SSP’s nonlinear behavior and their effects on retrofitting buildings are studied using nonlinear static analysis and Guidelines for seismic rehabilitation. At first the panel has modeled and analyzed in a finite element software individually and its nonlinear behavior derived to be used in the nonlinear analysis. Then weak structures and retrofitted structures with this panel have modeled and analyzed in analytical software using nonlinear static analysis and the results have compared. This panels will greatly improve the behavior of the structures. The stress ratio of the elements after retrofitting is in allowable ranges and has greatly improved. And also after retrofitting the Performance Level was improved and the life safety was obtained.

THE EFFECT OF STEEL SLIT PANELS IN RETROFITTING WEAK BUILDINGS