Abstract: In order to control construction stress and deformation of Cantilever-Pouring Concrete Arch Bridge, the finite element program ANSYS was used to research construction mechanical properties of Cantilever-Pouring Concrete Arch Bridge, mainly analyzing the effect segment length, form of hanging blue structure, and pre-stress and cable anchor position. the results show: segment length and cable anchor position control tensile stress setting pre-stress can effectively reduce stress, but the influence on deformation is not obvious; hanging blue form structure can both control stress and deformation to improve construction stress and deformation, it better to choose front pivot hanging basket construct.

Key words: bridge engineering, concrete arch bridge, cantilever-pouring segment length, structure of hanging basket, pre-stress

摘要： 为控制悬臂浇筑混凝土拱桥施工内力及变形，运用大型有限元分析软件ANSYS自带的零阶优化法，基于扣索一次张拉法开展混凝土拱桥悬浇 施工力学性能研究，主要分析了悬浇长度、挂蓝构造形式、预应力、扣索锚固位置对拱圈施工内力及变形影响。结果表明：改变节段长度和扣索 锚固位置对拱圈施工内力影响不大，在拱圈顶板设置预应力能有效减小施工内力，但对施工变形影响不大，挂篮构造形式对主拱圈施工内力及变 形影响均较大，悬臂浇筑钢筋混凝土拱桥建议采用前支点挂篮施工。

关键词: 桥梁工程, 混凝土拱桥, 悬臂浇筑, 分段长度, 挂篮构造, 预应力