独柱桥梁抗倾覆稳定性评价及加固设计

Overturning Stability and Reinforcement Design of Beam Bridge Supported by Single-column Pier

以某高速公路某独柱桥梁抗倾覆稳定性测试为例,考虑超载、偶然集中偏载对独柱桥梁力学行为的影响,通过现场试验与有限元模拟计算,分析了三种工况作用下独柱桥梁力学行为的变化,研究了桥梁的抗倾覆稳定性,并提出了相应的加固方案,为独柱桥梁的运营安全提供了保障与依据。

Taking some single-column bridge in highway which connects Hengshui and Dezhou as an example, the overturning stability and its reinforcement programs were researched in this paper. The overloading and accidental centralized partial load were considered in the study. Changes of the mechanical behavior of bridge under three conditions were calculated by field test and finite element simulation. Eventually, the reinforcement programs are proposed.