Semnan University Press Journal of Modeling in Engineering 2008-4854 10 30 2012 10 22 INVESTIGATION OF DETERIORATION OF HYSTERETIC LOOPS IN NONLINEAR STATIC ANALYSIS (PUSHOVER) FOR SPECIAL MOMENT RESISTING FRAME WITH SHEAR WALLS INVESTIGATION OF DETERIORATION OF HYSTERETIC LOOPS IN NONLINEAR STATIC ANALYSIS (PUSHOVER) FOR SPECIAL MOMENT RESISTING FRAME WITH SHEAR WALLS 33 41 1621 10.22075/jme.2017.1621 FA Ghodrati Amiri Razavian Amrei Sheikhi Journal Article 2017 01 28 Ever-increasing need of our country in studying rehabilitation of existing buildings and necessity of using applied analysis in these structures persuade us into searching in the area of effects which exist in analytical procedures. Recently, researchers have developed structures rehabilitation effectively. Their view in providing safe design of strength supply is considered to the structure`s performance. Nonlinear static procedure analysis or push over is one of the new procedures, which in spite of its high speed and simplicity of its calculation, is considered because of using FEMA356 and seismic rehabilitation code. The result of this analysis is targeted displacement which is considered as the basis for determining the structures performance and rehabilitation. If we can recognize this result exactly, it will increase the exactness of pushover analysis efficiency. Nonlinear Dynamic Analysis is the only procedures that study the effects of seismic motive on structures with the highest exactness, but it isn’t as applied as pushover procedure because of wasting a lot of time, high cost and difficulty. One of the coefficients applied to determining target displacement in this procedure is C2 which is used in order to reform the effects of reducing stiffness and strength of hysteresis loops that aren’t considered. In this research, It is tried to influence some reinforced concrete structures with shear walls, with different accelerations which are scaled according to FEMA356 and FEMA273 codes. These structures are designed according to the third edition of Standard 2800. At the end, the amount of C2 which is found is compared with the suggestive amount of rehabilitation code by analyzing push over and comparing its result with the result of Dynamic analysis. Ever-increasing need of our country in studying rehabilitation of existing buildings and necessity of using applied analysis in these structures persuade us into searching in the area of effects which exist in analytical procedures. Recently, researchers have developed structures rehabilitation effectively. Their view in providing safe design of strength supply is considered to the structure`s performance. Nonlinear static procedure analysis or push over is one of the new procedures, which in spite of its high speed and simplicity of its calculation, is considered because of using FEMA356 and seismic rehabilitation code. The result of this analysis is targeted displacement which is considered as the basis for determining the structures performance and rehabilitation. If we can recognize this result exactly, it will increase the exactness of pushover analysis efficiency. Nonlinear Dynamic Analysis is the only procedures that study the effects of seismic motive on structures with the highest exactness, but it isn’t as applied as pushover procedure because of wasting a lot of time, high cost and difficulty. One of the coefficients applied to determining target displacement in this procedure is C2 which is used in order to reform the effects of reducing stiffness and strength of hysteresis loops that aren’t considered. In this research, It is tried to influence some reinforced concrete structures with shear walls, with different accelerations which are scaled according to FEMA356 and FEMA273 codes. These structures are designed according to the third edition of Standard 2800. At the end, the amount of C2 which is found is compared with the suggestive amount of rehabilitation code by analyzing push over and comparing its result with the result of Dynamic analysis. https://modelling.semnan.ac.ir/article_1621_be044d31b2b179d0f1aa3f46254f99e2.pdf