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对不同跨数的跨度为 32m的重力式桥墩铁路PC简支梁桥分别进行了承受列车制动力的动力和静力分析 .结果表明 :虽然制动力具有动力荷载特性 ,但就桥梁下部结构承受的最大制动力而言 ,两种计算结果相差甚微 ,冲击系数在 0 .98～ 1.0 2之间 ,为采用简单的静力方法计算该桥式的墩台最大制动力提供了依据 .
The dynamic and static analysis of the train brakes on the PC bridge with different spans spanning 32m are carried out respectively.The results show that although the braking force has dynamic load characteristics, For the maximum braking force, the difference between the two kinds of calculation results is very little, and the impact coefficient is between 0.98 and 1.02, which provides the basis for calculating the maximum braking force of the pier and abutment by simple static method.