Local Stress Analysis of Orthotropic Steel Bridge Decks in High-Speed Railway
Orthotropic decks are commonly used in high-speed railway bridges. Finite-element model is established by ANSYS for orthotropic steel bridge deck in this paper. Taking the standard PDL ZK live load as the train load, the local stress of the rib-to-deck joint, the rib-to-crossbeam joint, and the cut-outs of the crossbeam are analyzed respectively. Analysis results show that the stress concentration of bridge deck mainly appears at the intersecting part of the U-shaped rib, crossbeam, and bridge deck. In the whole bridge deck, the local stress level of the cut-outs in crossbeam is almost the highest, and the cut-outs is distorted seriously; the maximum stress of crossbeam cut-outs is mainly concentrated at the lower arc of the cut-outs, which is one of the positions prone to fatigue failure.
Chaohe Chen, Yong Huang and Guangfan Li
Y. S. Li et al., "Local Stress Analysis of Orthotropic Steel Bridge Decks in High-Speed Railway", Advanced Materials Research, Vols. 243-249, pp. 1659-1663, 2011