Abstract
The bridge incremental launching method has been widely used in China nowadays. As one of the key parts in the incremental launching process, traditional calculation methods cannot meet the current accurate demand of stress state for slide beam. With the assistance of finite element software ANSYS and harmonic superposition method, this paper respectively analyzes the local stress state and the overall buckling of roof, web as well as diaphragm of the slide beam by adding the roughness influence of girder undersurface.
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