ABSTRACT

ABSTRACT: This paper presents the results of the probabilistic lifetime analysis performed for the structural repair of an existing cable-stayed bridge in Italy. To this aim a novel procedure for lifetime nonlinear analysis of concrete structures subjected to diffusive attacks from external aggressive agents is applied. Based on this procedure, both the deterministic and probabilistic time-variant structural performances are analyzed with respect to proper indicators considering two separate cases: without and with rehabilitation intervention. The effects of each random variable on such indicators are finally quantified and compared by means of suitable time-dependent sensitivity factors. The results demonstrates the applicability and effectiveness of the adopted intervention.