加劲肋形式对钢–UHPC组合桥面力学性能的分析研究

Analysis and Research on Mechanical Properties of Steel-UHPC Composite Bridge Deck by Stiffening Rib Form

摘要: 研究不同加劲肋形式对正交异性组合桥面板力学性能的影响，基于某大桥应用有限元软件ANSYS建立局部有限元实体模型进行加载，对比波形、梯形和U形三种不同截面形状的闭口加劲肋对正交异性桥面板性能的影响。结果表明，波形正交异性桥面板相比于U形和梯形正交异性桥面板来说可以显著的增强其局部力学性能，提高局部车轮荷载的纵向和横向分布能力。

Abstract: The influence of different stiffening rib forms on the mechanical properties of orthotropic composite bridge deck was studied. Based on a bridge, the finite element software ANSYS was used to establish a local finite element solid model for loading, and the influence of three closed stiffening ribs with different section shapes such as waveform, trapezoid and U-shape on the mechanical properties of orthotropic composite bridge deck was compared. The results show that compared with the U-shaped and trapezoidal orthotropic bridge panels, the waveform orthotropic bridge panels can significantly enhance the local mechanical properties and improve the longitudinal and transverse distribution of local wheel load.