应用结构分析的伪动力法 ,对不同跨度、不同长度的铁路重力式简支梁桥进行了大量计算 ;确定了 16m、2 4m及 3 2m跨度桥梁桥墩可能承受的最大制动力 ,为确定重力式简支梁桥墩制动力设计值提供了理论依据。在此基础上 ,以墩底承受的弯矩为准 ,对制动力作用下的桥墩安全性问题进行了分析 Based on the pseudo-dynamic method of structural analysis, a great deal of calculations were made on the railway simple-supported railway bridges with different span lengths and different lengths. The maximum braking forces that the bridge piers of 16m, 24m and 32m span can afford are determined. The design value of simply supported beam pier provides the theoretical basis. On this basis, taking the bending moments at the bottom of the pier as a criterion, the safety problems of the pier under the braking force are analyzed