Application of the Yield Point Spectra (YPS) Method in Performance Design of Steel and Reinforced Concrete Frames

application of the method of the Yield Point Spectra (YPS) for seismic design and evaluation of existing structures has been studied. The important thing about the Yield Point Spectra (YPS) is that this method can be used in structural profile such as strength and hardness efficiently, so that the ductility and inter-storey drift index (IDI) of the structures were limited to the amounts of the desired performance level. This method is considered as the functional capacity spectrum method and using algorithm of linear static analysis methods in the estimation of response of structures. Also, the graphics capabilities of present methods can express authorized areas of design that satisfy multiple objectives functional. In the present method, response of multi degree of freedom (MDOF) models using the equivalent single degree of freedom (SDOF) models and Yield Point Spectra (YPS) is estimated. In numerical studies of seismic design, some steel and reinforced concrete 2-D frames in 4 and 12 floors with the Yield Point Spectra (YPS) are selected. Then, the results of the yield point Spectra (YPS) are compared with the results of the linear static analysis and nonlinear time history dynamic analysis methods and shown the present method is efficient and sufficiently accurate.