Title: Research on Match of Supporting Length in Calculation of Orthotropic Deck System
Abstract: The difference between FEA method and PelikanEsslinger method under various loading and boundary conditions of the orthotropic steel deck of the Humen Bridge are discussed. The author uses the entire girder segment model to calculate normal stress and deflection under eight loading cases. It is founded that there is obvious difference in the calculation results of deck system and top plate system with the change of supported length. Meanwhile, the effect of the change of supporting length and load on normal stresses at midspan is not as obvious as those at cross beam. Therefore, the supporting length of the entire girder segment model should accord with that of beam element in entire bridge analysis. The results of normal stresses in decks and trapezoidal longitudinal ribs at midspan and cross beam are also compared with those of PelikanEsslinger method. These have proved that the former method can embody more perfectly the stressing and deformation state and reflect different behavior of different parts in various loading and boundary conditions. Furthermore, after comparing the results of field test to those obtained from calculating, it can be seen that the entire girder segment model presented in this paper can reflect the deck system and the stressed state of top plate system.
Publication Year: 2003
Publication Date: 2003-01-01
Language: en
Type: article
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