Benvenuti nell'Anagrafe della Ricerca d'Ateneo
La valutazione delle attività di ricerca che si svolgono nelle università ha assunto un'importanza rilevante sia per l'intero sistema universitario sia all'interno di ogni singolo ateneo. Roma Tre si è quindi dotata di idonei strumenti informativi in grado di supportare al meglio le azioni di monitoraggio e di valutazione delle attività di ricerca svolte nei propri dipartimentied ha realizzato una Anagrafe della Ricerca di Ateneo.
EnglishThis paper deals with the assessment of the seismic response of a portal frame pier belonging to an old reinforced concrete viaduct. A series of tests, consisting of cyclically imposed displacements, were carried out on three 1:4 scale mock-ups. The objective of the experimental campaign is twofold: (1) identification and evaluation of the local failure mechanisms and (2) calibration of a numerical model including all observed nonlinear phenomena. The experimental results show that the shear strength of the transverse beam and of the beam–column joints characterizes the post-elastic behavior of the piers. Other phenomena, like bond-slip and buckling of the longitudinal bars of the columns, typical of old reinforced concrete structures have also been observed. Finally, a numerical model, built in OpenSEES, was calibrated to reproduce in a satisfactory way the experimental results and to provide a reliable tool for the evaluation of the seismic response of the pier.
Paolacci F, & Giannini R (2012). An experimental and numerical investigation on the cyclic response of a portal frame pier belonging to an old reinforced concrete viaduct. EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS, 41(6), 1109-1127 [10.1002/eqe.1175].
| Titolo: | An experimental and numerical investigation on the cyclic response of a portal frame pier belonging to an old reinforced concrete viaduct | |
| Autori: | ||
| Data di pubblicazione: | 2012 | |
| Rivista: | ||
| Citazione: | Paolacci F, & Giannini R (2012). An experimental and numerical investigation on the cyclic response of a portal frame pier belonging to an old reinforced concrete viaduct. EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS, 41(6), 1109-1127 [10.1002/eqe.1175]. | |
| Abstract: | This paper deals with the assessment of the seismic response of a portal frame pier belonging to an old reinforced concrete viaduct. A series of tests, consisting of cyclically imposed displacements, were carried out on three 1:4 scale mock-ups. The objective of the experimental campaign is twofold: (1) identification and evaluation of the local failure mechanisms and (2) calibration of a numerical model including all observed nonlinear phenomena. The experimental results show that the shear strength of the transverse beam and of the beam–column joints characterizes the post-elastic behavior of the piers. Other phenomena, like bond-slip and buckling of the longitudinal bars of the columns, typical of old reinforced concrete structures have also been observed. Finally, a numerical model, built in OpenSEES, was calibrated to reproduce in a satisfactory way the experimental results and to provide a reliable tool for the evaluation of the seismic response of the pier. | |
| Handle: | http://hdl.handle.net/11590/135549 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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