DYNAMIC-RESPONSE OF PRESTRESSED CONCRETE FRAMES

Based on compatibility conditions, as well as a trilinear moment-curva ture relationship, an analytical model was presented recently to predi ct the response of reinforced/prestressed concrete frames and continuo us beams to static loads. The model was compared to the test specimens and was found to be applicable throughout the loading history. This p aper shows that the inelastic response of prestressed concrete frames to dynamic loads can be predicted when the trilinear theory for the pr imary curve is combined with Takeda's rules for the hysteresis loops a nd with the linear acceleration step-by-step method for the dynamic mo del. The algorithm is described and a numerical example is given.