Usually, to estimate the fatigue life of structural details in existing bridges, fatigue damage assessed with monitoring data is extrapolated linearly in time. In this study, a methodology is proposed for predicting the numbers of fatigue cycles with the peaks-over-threshold approach. On the other side, this POT approach, which is based on extreme ...
26th PIARC World Road Congress, ABU DHABI, EMIRATS ARABES UNIS, 06-/10/2019 - 10/10/2019
Some ageing bridges exposed to heavy traffic loads or abnormal loads may have critical details, either against extreme loads or in fatigue. Old bridges were designed with design codes and load models which are now exceeded by the authorized vehicle loads. Therefore, keeping the bridge safety and reliability at an acceptable level requires periodica...
Predicting reliability levels for critical details of bridges based on limited statistical traffic data is a relevant topic nowadays. That is why the comparison between results from various statistical approaches based on the recorded data for applied traffic actions is the main point of interest of this work. The object of the current study is the...
The local authorities asked in 2017 the concessionaire of the bridge of Normandy (CCISE), a 856 span length cable stayed bridge, to study the feasibility opening it to abnormal loads up to 120 t. The CCISE asked the advice of the bridge designer, M. Virlogeux, and to IFSTTAR, to measure the current traffic loads on the bridge, in operation since 19...
TRB, Transportation Research Board Annual Meeting, WASHINGTON, ETATS-UNIS, 13-/01/2019 - 17/01/2019
In Europe, regulation on weights and dimensions of trucks are prescriptive, rather than performance based, as it is introduced in some other countries (Australia, Canada, South Africa). The performance based standards (PBS) allow more flexibility in the vehicle design and optimize their performances with respect to the infrastructure constraints. T...
Due to a request to open the Normandy bridge in France to abnormal loads, some detailed investigations have been carried out on the current traffic loads, and on the expected fatigue lifetimes, with and without the abnormal loads. This long span cable-stayed bridge is made of a steel orthotropic deck, quite sensitive to fatigue under traffic loads....
Les autorités locales ont demandé en 2017 au concessionnaire du pont de Normandie (CCISE), ouvrage haubané de 856 m de portée, d'étudier la possibilité d'ouvrir le pont à des transports exceptionnels jusqu'à 120 t. La CCISE a demandé l'avis du concepteur de l'ouvrage, M. Virlogeux, et à l'IFSTTAR de mesurer les charges de trafic sur le pont en serv...
Predicting reliability levels for critical details of bridges based on limited statistical traffic data is a relevant topic nowadays. That is why the comparison between results from various statistical approaches based on the recorded data for applied traffic actions is the main point of interest of this work. The object of the current study is the...
