Stress concentration in steel bridge orthotropic decks

Fatigue life estimates for a slender orthotropic steel deck

“…Hence, in order to avoid the tendency of designing heavier structures which may result from the application of design rules prescribed in modern codes of practice, but at the same time prevent excessive vibration generated in slender structures by the mentioned dynamic interaction phenomenon, alternative solutions for enhancing fatigue life such as those proposed by the present authors [5][6][7]10], could be implemented earlier in the conceptual design stage. The performance of those or any rational solution may be evaluated through tests on a prototype model and on an existing structure.…”

“…Refined numerical results from parametric studies, obtained with experimentally calibrated finite element models of the orthotropic deck, were used to better understand the static and dynamic behaviour and sensitivity of this structural component subjected to heavy vehicle loading [5][6][7]10] and also to better estimate the remaining fatigue life of the strengthened orthotropic deck of the bridge.…”

Maintenance decision model for steel bridges: a case in the Netherlands

“…It is the result of fluctuating stresses caused by the crossing of heavy vehicles. Especially, welded details in the deck structure are vulnerable to fatigue cracking (Maljaars, Kolstein, & Van Dooren, 2012) because these details are directly loaded by passing wheels and because of the stress concentrations, initial notches and high residual stresses that are specific to welded deck structures (Pfeil, Battista, & Mergulhão, 2005). Some critical welded details occur multiple times in a bridge deck, so that cracks can basically occur everywhere in the deck.…”

Monitoring and Analysis of Stress Field for Orthotropic Steel Deck of Dashengguan Yangzte River Bridge

“…A mayor concern about the railway transportation system is whether these asbuilt high-speed railway bridges are robust enough to carry the ever-increasing transportation. Considerable railway bridges were built in steel for lighter weight and easier construction [3,4]. However, steel material and structure are vulnerable to suffering corrosion and fatigue issues especially in welded positions.…”