宁波大榭第二大桥主塔设计关键技术  

On Key Technologies of Main Column Design of Ningbo Daxie Bridge Ⅱ

作　　者：顾民杰[1] 

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海200092

出　　处：《中国市政工程》2012年第3期18-20,103,共3页China Municipal Engineering

摘　　要：宁波大榭二桥为特大型单索面"帆"形混合塔斜拉桥,介绍了主塔的总体方案。重点探讨了"帆"形塔锚索区、钢—混凝土结合部、下横梁等重要节点的构造及受力性能,双肢塔柱整体受力性能、锚索区钢结构局部受力、钢—混凝土结合部受力、主塔人孔开孔效应等关键设计技术,为今后同类型工程的设计提供参考。Ningbo Daxie Bridge II is designed as a super-large type cable-stayed bridge with single cable plane and sail-shaped hybrid column.The general plan of the main column is introduced in this paper.Several key design technologies are discussed mainly including the structures & mechanical performances of sail-shaped column anchor cable area,steel-concrete combined part,bottom beam,the whole mechanical performance of double trestle pylon,partial stress of steel structure in anchor area and steel-concrete combined part and openings effect of the main column,etc.,which can provide references for similar projects in the future.

关 键 词：斜拉桥 “帆”形混合塔 单索面 钢—混凝土组合结构 

分 类 号：U448.273.38[建筑科学—桥梁与隧道工程]