Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Reliability based fatigue assessment of existing motorway bridge
Abstract This paper provides an original framework for the fatigue reliability analysis of a road bridge; the framework is applied to the Venoge bridge, a composite steel–concrete bridge within the A1 Swiss highway. Two critical details are selected by inspection: a longitudinal weld attachment and a cover plate welded attachment. Weigh in Motion (WIM) data from Denges station (1km far from the bridge) and a refined three-dimensional Finite Element (FE) model of the bridge are used to get realistic time-stress response at two critical locations. The fatigue failure probability of the bridge at two selected locations under the long-term effect of highway traffic is calculated for a 100year-design life. The original contribution consists in computing the failure probability as joint probability of two events: (1) the exceeding of the constant amplitude fatigue limit (CAFL); and (2) the critical fatigue damage accumulation. The results show that fatigue is not a concern both for the longitudinal attachment detail and for the cover plate detail.
Reliability based fatigue assessment of existing motorway bridge
Abstract This paper provides an original framework for the fatigue reliability analysis of a road bridge; the framework is applied to the Venoge bridge, a composite steel–concrete bridge within the A1 Swiss highway. Two critical details are selected by inspection: a longitudinal weld attachment and a cover plate welded attachment. Weigh in Motion (WIM) data from Denges station (1km far from the bridge) and a refined three-dimensional Finite Element (FE) model of the bridge are used to get realistic time-stress response at two critical locations. The fatigue failure probability of the bridge at two selected locations under the long-term effect of highway traffic is calculated for a 100year-design life. The original contribution consists in computing the failure probability as joint probability of two events: (1) the exceeding of the constant amplitude fatigue limit (CAFL); and (2) the critical fatigue damage accumulation. The results show that fatigue is not a concern both for the longitudinal attachment detail and for the cover plate detail.
Reliability based fatigue assessment of existing motorway bridge
D’Angelo, Luca (Autor:in) / Nussbaumer, Alain (Autor:in)
Structural Safety ; 57 ; 35-42
02.07.2015
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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