Les acteurs du bâtiment veulent maximiser l'efficacité de leurséquipes et matériels dans le but de minimiser la durée des chantiers. Cela conduità une utilisation intensive des grues dont la charpente est principalement composée d'éléments mécano-soudés. De ce fait, les Ingénieurs Structure doivent considérer la résistanceà la fatigue durant le dimensionnement. L'objectif de ce travail est de démontrer l'utilité d'une méthode fiabiliste pour une meilleure optimisation du dimensionnementà la fatigue d'éléments de flèche de gruesà tour.
Abstract :Crane owners want to maximize the efficiency of their equipment and teams in order to minimize the amount of time needed to complete a construction site. This leads to very intensive crane use and stress on crane structures made primarily of welded steel elements (plates and beams). Therefore, Structural Engineers have to consider fatigue resistance during the design process. The aim of the paper is to demonstrate the utility of a probabilistic approach for a better optimization of the fatigue design of tower cranes elements (e.g. jib elements).
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