Department of Structural, Geotechnical and Building Engineering (DISEG), Politecnico di Torino, Turin, Italy;
Department of Civil Engineering, University of Salerno, Via Giovanni Paolo H (SA), ltaly;
Universidad de Buenos Aires. Consejo Nacional de lnvestigaciones Cientificas y Tecnicas ( CONICET). Instituto de Tecnologias y Cieneias de la Ingenieria "Hilario Fernandez Long" (INTECIN). Faeultad de Ingenieria, Buenos Aires, Argentina;