【摘要】 以京雄永定河大桥为背景,研究了中承式拱桥的钢骨混凝土组合结构拱座的分析方法,采用实体单元模型和二维平面有限元模型结合的方法计算该桥拱座的受力状态。经验算该桥拱座结构受力较均匀,实体模型应力结果基本符合平截面假定,大桥拱座的设计符合规范要求,验证了本桥拱座方案设计的可靠性。更多还原

【Abstract】 Taking the Yongdinghe Bridge on the Jingxiong Expressway as the background,the analysis method of the steel reinforced concrete composite structure arch seat of the Half-through arch bridge was studied.The stress state of the arch seat of the bridge was calculated using a combination of solid element model and two-dimensional plane finite element model.Computation results showed that the stress on the arch seat of this bridge was relatively uniform,and the stress results of the solid model basically conformed to the plane section assumption.The design of the arch of the bridge meets the requirements of the specifications,which verifies the reliability of the arch design scheme of this bridge.更多还原