Change of the local stress of orthotropic steel decks by the combination of deck plate thickness and longitudinal rib size

摘要

In this study，the finite element analysis using shell elements is carried out for a total of 12 kinds of models，which has different combination of deck plate thickness and longitudinal rib size. The influence of the combination on the local stress near the intersection of the longitudinal and transverse ribs is examined. Consequently, it is shown that the stress can be reduced by making the deck plate and longitudinal rib thick and the combination of deck plate thickness of 12mm and longitudinal rib size of 320x240x8-40 is economically most efficient among the models analyzed.