钢-UHPC组合桥面板构造参数研究

Study on Structural Parameters of Steel-UHPC Composite Deck

以某高速公路跨航道大桥为背景工程,着眼于钢-UHPC组合桥面板参与第一体系受力的关键参数,采用有限元分析软件ANSYS建立全断面节段模型,重点对比钢板和UHPC板厚度的影响、不同加劲肋形式的影响、不同加劲肋间距的影响和箱室中部不同剪力钉间距的影响,为组合桥面板设计优化提供方向。

Taking an expressway bridge crossing channel as the background engineering,with a view to the key parameters of steel-UHPC composite bridge deck and the first system stress,the finite element analysis software ANSYS is used to establish the full-section model and to focus on the comparison of the influence of the thickness of steel plate and UHPC plate,the influence of different stiffening rib forms,the influence of different stiffening rib spacing,and the influence of different shear nail spacing in the middle of the box chamber,which provide a direction for design optimization of composite deck.