两座悬浇连续梁桥设计

Design of Two Cast-in-cantilever Continuous Beam Bridges

介绍了余杭区崇贤至老余杭连接线(高架)工程中两座跨高速公路的三跨悬浇连续梁桥的工程概况、主要技术标准、桥型选择、结构设计要点、结构计算等。从上部结构、下部结构和附属结构几方面重点介绍了结构设计要点。采用悬浇连续梁桥跨越高速公路,解决了大跨度钢混组合梁及钢箱梁节段施工场地受限的问题。

The engineering situation,main technical standards,bridge type selections,structural design essentials and structural calculations of two three-span cast-in-cantilever continuous beam bridges crossing expressways in Yuhang District Chongxian-Old Yuhang Connection(Elevated)Project are introduced.The structural design essentials are specially introduced from three aspects of superstructure,substructure and accessory structure.The cast-in-cantilever continuous beam bridge crossing expressway is used to solve the problems of construction site constraints for the long-span steel-concrete composite beam and steel box beam segment.