Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultimate Flexural Capacity of a Severely Damaged Reinforced Concrete T-Girder Bridge
Rational and precise evaluation for ultimate flexural capacity is essential for accurate prediction of the safety margin and overload capacity of existing bridges. One of the spans of a 28- year-old distressed simply supported T-girder bridge with a span of 20 m was severely damaged, and the decision to replace it with new one was made. A field destructive load test of this distressed span was performed. A nonlinear finite-element model technique was used to predict the failure load and retrace the load-versus-deflection response. The ultimate flexural capacity obtained by the destructive load test was compared with the results of a limit-states design method. The comparison revealed that the ultimate flexural capacity of the distressed bridge was more than the bending moment produced by the combined effect of self-weight and overloaded vehicles plying over it, which explains why the bridge supported overloaded vehicles for many years.
Ultimate Flexural Capacity of a Severely Damaged Reinforced Concrete T-Girder Bridge
Rational and precise evaluation for ultimate flexural capacity is essential for accurate prediction of the safety margin and overload capacity of existing bridges. One of the spans of a 28- year-old distressed simply supported T-girder bridge with a span of 20 m was severely damaged, and the decision to replace it with new one was made. A field destructive load test of this distressed span was performed. A nonlinear finite-element model technique was used to predict the failure load and retrace the load-versus-deflection response. The ultimate flexural capacity obtained by the destructive load test was compared with the results of a limit-states design method. The comparison revealed that the ultimate flexural capacity of the distressed bridge was more than the bending moment produced by the combined effect of self-weight and overloaded vehicles plying over it, which explains why the bridge supported overloaded vehicles for many years.
Ultimate Flexural Capacity of a Severely Damaged Reinforced Concrete T-Girder Bridge
Li, Yong (Autor:in) / Zhang, Jinquan (Autor:in) / Chen, Yanjiang (Autor:in) / Wu, Lipeng (Autor:in)
03.02.2017
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Ultimate Flexural Capacity of a Severely Damaged Reinforced Concrete T-Girder Bridge
| Online Contents | 2017
Ultimate Flexural Capacity of a Severely Damaged Reinforced Concrete T-Girder Bridge
| Online Contents | 2017
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