复合钢管混凝土花瓶式桥墩的非线性有限元分析

Nonlinear Finite Element Analysis of Composite Concrete Filled Steel Tubular Vase Pier

提出一种新的桥墩结构形式,即复合钢管混凝土花瓶式桥墩。结合实际工程案例,利用有限元软件ABAQUS对桥梁固定墩进行非线性有限元计算。分析表明,通过选择合理的内外钢管的壁厚,配置一定数量的纵向或横向加劲肋后,将复合钢管混凝土的结构形式运用在花瓶式桥墩是合理可行的。

In this paper, a new structural form of pier, namely composite concrete-filled steel tubular vase pier, is proposed. Combined with the actual engineering case, the finite element software ABAQUS is used to calculate the nonlinear finite element of bridge pier. The analysis shows that it is reasonable and feasible to apply the structural form of composite concrete-filled steel tubular to vase pier by selecting reasonable wall thickness of inner and outer steel tubes and configuring a certain number of longitudinal or transverse stiffeners.