【摘要】 该文通过对多种跨径的单跨简支箱梁的计算,比较了新、旧公路桥规与城市桥梁荷载作用下的内力,分析出以上三种规范或标准相应等级的汽车荷载基本上是同一量级的,但对于箱梁和铰接梁板桥却有较大的差别。这一差别在车辆接近于设计荷载时是不容忽视的。更多还原

【Abstract】 Through the calculation of various spans of single-span simple supporting box beam, the article compares the rules of the new and old highway bridges, the inner force under the urban bridge loading action, and analyzes that three rule or standard relative classes of automobile load are basically same in a level, but there is larger difference between the box beam and the hinged beam plate bridges. It is not to overlook this difference when the vehicle approaches the design load.更多还原