连续弯箱梁桥横向内力计算分析

Calculation Analysis of the Transversal Internal Force in Continuous Box Girder Bridge

针对连续弯箱梁桥结构分析之横向内力计算，探讨了考虑桥梁纵向挠曲作用与弯梁扭转作用对横向内力计算的影响，并计算了厦门海沧大桥东引桥１０×４２ｍ连续弯箱梁桥在预应力作用、自重恒载作用以及汽车与挂车在最不利布置时的横向内力．

To aim at the purpose of calculating the transversal internal force, one of the structural analysis of curved continuous box girder bridge, the discussion was made to consider the effect of the bending deflection and the rotational deformation of the curved girder. After that a practical calculation of the transversal internal force was made to the 10×42 mcurved continuous box girder bridge, which was the eastern approach to Haichang Bridge in Xiamen. The loads on the bridge were the prestressing force, the dead weight and the vehicles or trailers which were arranged to the unfavourable position for the transversal internal force of the calculating sections.