在二十世纪五十年代期间,欧洲的设计人员开始对用箱形梁修造上承混凝土桥感兴趣。箱形结构能减轻自重的主要优点,早为航空工业所熟知,由于材料围绕截面周边设置,空箱截面可以同样承受正、负弯矩,而且有较高的抗扭刚度。此种有效的布置形式,具有很好承受横向分布荷载强度的性能,并能节省大量材料。 During the 1950s, European designers began to be interested in using box girders to build concrete bridges. The main advantage of a box-shaped structure that reduces self-weight is well known in the aviation industry as the material is placed around the periphery of the cross-section and can bear both positive and negative moments of cross-section as well as high torsional stiffness. This effective arrangement, with good lateral load distribution performance, and can save a lot of material.