Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Measurement, Data Interpretation, and Uncertainty Propagation for Fatigue Assessments of Structures
AbstractThe real behavior of existing structures is usually associated with large uncertainty that is often covered by the use of conservative models and code practices for the evaluation of remaining fatigue lives. To make better decisions related to retrofit and replacement of existing bridges, new techniques that can quantify fatigue reserve capacity are required. This paper presents a population-based prognosis methodology that takes advantage of in-service behavior measurements using model-based data interpretation. This approach is combined with advanced traffic and fatigue models to refine remaining fatigue-life predictions. Study of a full-scale bridge revealed that this methodology provides less conservative estimations of remaining fatigue lives. In addition, this approach propagates uncertainties associated with finite-element, traffic, and fatigue-damage models to quantify their effects on fatigue-damage assessments and shows that traffic models and structural model parameters are the most influential sources of uncertainty.
Measurement, Data Interpretation, and Uncertainty Propagation for Fatigue Assessments of Structures
AbstractThe real behavior of existing structures is usually associated with large uncertainty that is often covered by the use of conservative models and code practices for the evaluation of remaining fatigue lives. To make better decisions related to retrofit and replacement of existing bridges, new techniques that can quantify fatigue reserve capacity are required. This paper presents a population-based prognosis methodology that takes advantage of in-service behavior measurements using model-based data interpretation. This approach is combined with advanced traffic and fatigue models to refine remaining fatigue-life predictions. Study of a full-scale bridge revealed that this methodology provides less conservative estimations of remaining fatigue lives. In addition, this approach propagates uncertainties associated with finite-element, traffic, and fatigue-damage models to quantify their effects on fatigue-damage assessments and shows that traffic models and structural model parameters are the most influential sources of uncertainty.
Measurement, Data Interpretation, and Uncertainty Propagation for Fatigue Assessments of Structures
D’Angelo, Luca (Autor:in) / Smith, Ian F. C / Pasquier, Romain / Nussbaumer, Alain / Goulet, James-A / Acevedo, Claire
2016
Aufsatz (Zeitschrift)
Englisch
BKL:
56.23
Brückenbau
Measurement, Data Interpretation, and Uncertainty Propagation for Fatigue Assessments of Structures
| British Library Online Contents | 2016
Measurement, Data Interpretation, and Uncertainty Propagation for Fatigue Assessments of Structures
| Online Contents | 2016
Measurement Interpretation and Uncertainty Resulting from Nonlinear Ultrasonic Wave Propagation
| British Library Online Contents | 1999
Fatigue Crack Propagation in Thin Structures
| British Library Online Contents | 2010