Asymmetric of Continuous Rigid Frame bridge Precamber and construction

摘要

Prestressed concrete continuous rigid frame bridge has the advantages of no expansion joints, smooth driving the advantages, however, due to cross under serious scratch, seriously affect the service life of the bridge. Take a Large span asymmetric continuous rigid frame bridge of Guizhou as engineering background, use finite element Program Midas/Civil modeling, carried out Analysis of the construction process, And select a reasonable way to Set the bridge pre-camber, and provide reasonable data for the construction of control, to ensure the bridge structure linear reasonable.