Shear-lag Effects of Continuous Rigid-frame Box Girder Bridge with Single Box Three Rooms

According the continuous rigid-frame box girder bridge with single box three rooms, two models were create which considered the interaction between pile and soil. One is taper section 3D beam element model, the other is 3D compounding model with solid element and shell element. The shear-lag effects were mainly analyzed under surface load and focus load, and the different was dissnssed that impact to dynamic analysis of these two models. The result shows that, under static loading, the shear effects of boxing beam is notable, and the taper section 3D beam element model which considered the interaction between pile and soil has higher precision and efficiency. 7figs., 2tabs., 8refs.