弯箱梁桥由于存在“弯-扭”耦合作用,其空间受力比一般直梁桥复杂。剪力柔性梁格法是根据弯、斜箱梁桥的空间受力特点而提出的一种简单通用的分析方法,该文介绍了梁格法的梁格划分和梁格刚度的等效计算,并结合工程实例进行分析探讨,验证了这种方法可靠易行,能满足于弯箱梁桥的结构分析。 Curved box girder bridge because of the existence of “bend - twist ” coupling, the space force than the general straight beam bridge complex. Shear flexible beam grid method is a simple and general analysis method based on the space force characteristics of curved box girder bridge. This paper introduces the beam grid division and the equivalent calculation of beam rigidity. Combined with the engineering examples The results show that this method is reliable and easy to implement and can satisfy the structural analysis of curved box girder bridges.