上承式钢筋混凝土拱桥构造研究

Structural Study on Reinforced Concrete Deck Arch Bridge

为研究上承式钢筋混凝土拱桥构造对结构受力的影响,利用有限元方法分析某无砟轨道上承式钢筋混凝土拱桥拱肋厚度及腹拱跨度对结构受力的影响。通过计算分析得出采用增加拱肋厚度、减小腹拱跨度的方式,能有效改善局部受力,降低腹拱墩范围的应力水平使结构受力更为合理的结论。

Using the data from a deck arch bridge, this article conducts an analysis of the relationship between the thickness of arch rib and the span of spandrel arch. The results show that increasing the thickness of the arch rib and decreasing the span of the spandrel arch can effectively improve the local load carrying capacity and lower the stress level around the spandrel arch pier.