This paper presents the results of the study of the structural behavior during cantilever construction of a concrete, three-span (60+100+60 m) extradosed bridge, numerically modeled using a finite element model developed in the software SAP2000. Creep and shrinkage of concrete, as P-delta effects were taken into account. The study focuses on deck, extradosed cables and piers behavior, during construction, and from the time when the bridge is closed until fifty years, at which time all differed effects have taken place. It was possible to glimpse the importance of considering the differed effects over time in the staged-construction analysis of the bridge. For example, considerable variations in forces * Ingeniero Civil, Universidad Industrial de Santander. Magister en Ingenieria Civil, Universidad Industrial de Santander. Profesor Auxiliar de la Universidad Industrial de Santander, Grupo de Investigacion en Materiales y Estructuras de Construccion (INME), ** Ingeniero Civil, Universidad Industrial de Santander. *** Ingeniero Civil, Universidad Industrial de Santander. Doctor Ingeniero de Caminos, Canales y Puertos de la Universidad Politecnica de Cataluna. Profesor Titular de la Universidad Industrial de Santander, Grupo de Investigacion en Materiales y Estructuras de Construccion (INME). Revista EIA, ISSN 1794-1237 / Ano X / Volumen 10 / Numero 20 / Julio-Diciembre 2013 / pp. 111-125 Publicacion semestral de caracter tecnico-cientifico / Escuela de Ingenieria de Antioquia —EIA—, Medellin (Colombia) Historia del articulo: Articulo recibido: 06-II-2013 / Aprobado: 02-X-2013 Discusion abierta hasta diciembre de 2014 Autor de correspondencia: (J. Benjumea-Royero). Carrera 27 Calle 9, Escuela de Ingenieria Civil, Universidad Industrial de Santander, Bucaramanga, Colombia. Telefono: 76344000 – Ext. 2928. Correo electronico: josbenro@uis.edu.co DOI: http:/dx.doi.org/10.14508/reia.2013.10.20.111-125 112 Comportamiento estruCtural de puentes extradosados durante ConstruCCion por voladizos suCesivos Revista EIA Rev.EIA.Esc.Ing.Antioq / Publicacion semestral Escuela de Ingenieria de Antioquia —EIA— and displacements were found in the deck, while a 10% tension loss in extradosed cables occurs. In the piers, differed effects introduce large horizontal displacements at the top which generate excessive bending moments at the bottom. This fact makes it necessary to apply a force during the construction of the closing segment to correct such phenomenon.