连续钢构柔性拱组合桥梁设计研究

Research on Design of Continuous Steel Structure Flexible Arch Composite Bridge

为了研究连续钢构柔性拱组合桥梁的设计,以聊泰黄河特大桥(121.26+236.49+121.26)m连续刚构柔性拱组合桥梁作为工程背景,结合该工程实际情况,对桥梁主梁、拱肋、横撑、吊杆、支座、主墩、承台等结构部件进行设计。通过检算,主梁承载力大于最大受压应力,并且桥梁主梁与拱肋挠度均没有超出规范要求,设计符合相关规范要求。

In order to study the design of continuous steel structure flexible arch composite bridge,the Liaotai Yellow River Bridge(121.26+236.49+121.26)m continuous rigid structure flexible arch composite bridge is taken as the engineering background,and combined with the actual situation of the project,the main beam,arch rib,transverse brace,suspender,support,main pier,bearing platform and other structural components of the bridge are designed.Through checking the bridge,it is concluded that the bearing capacity of the main beam is greater than the maximum compressive stress,and the deflection of the main beam and arch rib of the bridge does not exceed the specification requirements,so the design meets the requirements of relevant specifications.