In the present study, a new pushover procedure for 3D frame structures is proposed, based on the application of a set of horizontal force and torque distributions at each floor level; in order to predict the most severe configurations of an irregular structure subjected to an earthquake, more than one pushover analysis has to be performed. The proposed method is validated by a consistent comparison of results from static pushover and dynamic simulations in terms of different response parameters, such as displacements, rotations, floor shears and floor torques. Starting from the linear analysis, the procedure is subsequently extended to the nonlinear case. The results confirm the effectiveness of the proposed procedure to predict the structural behaviour in the most severe configurations
SEISMIC ANALYSIS OF IRREGULAR RC STRUCTURES BY 3D FORCE/TORQUE PUSHOVER METHOD / Ferracuti B.; Pinho R.; Savoia M.; Serpieri M.. - STAMPA. - (2008), pp. 315-322. (Intervento presentato al convegno Valutazione e riduzione della vulnerabilità sismica di edifici esistenti in cemento armato tenutosi a Roma nel 29-30 Maggio 2008).
SEISMIC ANALYSIS OF IRREGULAR RC STRUCTURES BY 3D FORCE/TORQUE PUSHOVER METHOD
FERRACUTI, BARBARA;SAVOIA, MARCO;
2008
Abstract
In the present study, a new pushover procedure for 3D frame structures is proposed, based on the application of a set of horizontal force and torque distributions at each floor level; in order to predict the most severe configurations of an irregular structure subjected to an earthquake, more than one pushover analysis has to be performed. The proposed method is validated by a consistent comparison of results from static pushover and dynamic simulations in terms of different response parameters, such as displacements, rotations, floor shears and floor torques. Starting from the linear analysis, the procedure is subsequently extended to the nonlinear case. The results confirm the effectiveness of the proposed procedure to predict the structural behaviour in the most severe configurationsI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
