路桥过渡段行车荷载的计算

The calculation of vehicle load of highway and bridge transition section

针对桥头跳车引起的冲击荷载计算方法存在的问题 ,本文从能量守恒原理出发 ,考虑了路桥过渡段在冲击时的能量损失 ,推导了路桥过渡段桥头跳车冲击时动荷系数的统一计算公式 ,该方法思路明确、计算简便 。

As to the problems in calculating impact load of vehicle bouncing at bridge head, the paper, from the point of view of conservation of energy law, considering the energy loss due to the impact in transitionsection, deduces the universal formula for calculating the moving load coefficient when impacted in transitionsection of vehicles bouncing. The deduction process shows that this method, clear in thinking and concise in calculating, can be put to use in the calculation of design load of transition section of highways and bridges.