Application of Space Frame Lattice Model in a Box-Girder Bridge

摘要

By using the presented space frame lattice model, the shear stresses and principle tensilernstresses of the box girder cross-section in Xintan Bridge, which is a continuous prestressedrnconcrete rigid frame with the (75+130+75) m span, were calculated and analyzed. The layoutrnmethod of mixed internal and external prestressed tendons was adopted. In addition, thernspace frame lattice model is worth further investigating. It can be applied to more bridgernpatterns.