Force Analysis Of Variable Cross-Section Continuous Box Girder Bridge

In order to study the distribution of stress and deformation variable cross-section continuous box girder bridge, in this paper, finite element method is used establish model bridge. Considering layout lane load, combination working conditions calculated, bridge are analysed. The results show that maximum generally occurs at beam span middle section or support, sometimes value vehicle load point also large. These positions with large values should be considered design girder. vertical displacement small, removing settlement end support. 15 mm, scheme safe, reliable economical.