独柱墩桥梁在偏心荷载作用下的抗倾覆研究

Research on Overturning Resistance of Single Column Pier Bridge under Eccentric Load

单支座独墩桥在极端车辆荷载作用下,存在较大倾覆的安全隐患。本项目通过Midas对模型施加荷载进行计算分析,依据一些简单的力学理论及数学方法进行倾覆和抗倾覆方案的理论分析,同时结合分析计算结果对加固方案的抗倾覆效果评估和实际应用的讨论,从而在理论层面上确定所选的加固方案的可行性并指明独墩桥加固方案的思路方向及其利弊的权衡。

Under the action of extreme vehicle load,the single pier bridge with single bearing has the potential safety hazard of overturning.In this project,Midas is used to calculate and analyze the load on the model,and the theoretical analysis of the overturning and anti overturning schemes is carried out according to some simple mechanical theories and mathematical methods.At the same time,the anti overturning effect evaluation and practical application of the reinforcement scheme are discussed based on the analysis and calculation results,so as to determine the feasibility of the selected reinforcement scheme on the theoretical level,and point out the thinking direction of the reinforcement scheme of the single pier bridge and the trade-off of its advantages and disadvantages.