吴淞江工程(上海段)新川沙河段罗宁路桥主桥设计

Main Bridge Design of Luoning Road and Bridge in New Chuansha River Section of Wusong River Project(Shanghai Section)

吴淞江工程(上海段)新川沙河段罗宁路桥主桥采用跨度布置为55 m+112 m的两跨系杆拱桥,桥宽31.5 m,横桥向采用单片拱。拱肋立面采用两跨连续三角型结构,截面采用变高度六边形,主梁采用带大挑臂脊骨梁结构,脊骨梁与拱肋固结形成连续。该桥主桥造型简洁大气、时尚新颖,大挑臂主梁结合三角型独拱肋,为桥下桥上提供了极佳的景观效果。

The main bridge of Luoning bridge in Xinchuansha reach of Wusong River Project(Shanghai Section)is a tied arch bridge with a span of 55m+112m.Width of the main bridge is 31.5m,and a single arch is adopted in the transverse direction.The elevation of the arch rib adopts a two-span continuous triangular structure,the section adopts a variable height hexagon.A spine beam structure with a large cantilever is designed for the main beam.The spine beam is consolidated with the arch rib to form a continuous structure.The outline of the main bridge is simple,elegant and fashionable.Large cantilever girder combined with the triangular single arch rib provides an excellent landscape effect for the whole bridge.