哈尔滨松浦大桥辅航道桥箱梁结构设计

哈尔滨松浦大桥辅航道桥上部结构为六跨单箱双室预应力混凝土连续梁结构,设计中需考虑严寒条件下桥梁的荷载、耐久性、施工周期等问题;桥梁采用三向预应力体系,悬臂浇筑和满堂支架现浇相结合的施工方法。该文阐述了具体纵向、横向、竖向预应力配置情况,结构计算概况,合拢段、横梁的设计,以及指导性施工步骤等,可供相关专业人员参考。

Design of Box Girder Structure for Assistant Shipping Channel Bridge of Harbin Songpu Bridge

The upper structure of the assistant shipping channel bridge for Harbin Songpu Bridge is a six-span single-box double-chamber prestressed concrete continuous girder structure. It is required to consider the load,durability and construction period of the bridge under the cold environment condition. The bridge uses the triple-direction prestressing system by the construction method combining the cantilever cast with and full-support cast in site. The article sets forth the detailed longitudinal,transverse,ver...