TY - BOOK AU - Ahmed Muhammed Aboulfetouh Hagag AU - Nayer Ahmed Elesnawy , AU - Osman Mohamed Osman Ramadan , TI - Effect of reinforcement ratio on force reduction factor of RC frames / PY - 2012/// CY - Cairo : PB - Ahmed Muhammed Aboulfetouh Hagag , KW - Design spectrum KW - Nonlinear static pushover analyses KW - Response modification factor N1 - Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering; Issued also as CD N2 - Earthquake design codes use the inclastic design response spectrum to assess the force and deformation demands imposed by earthquake ground motions on structures. The inclastic design response spectrum is roughly equal to the corresponding elastic design response spectra divided by the response modification factor R ER -