宁波大榭二桥“帆”形桥塔设计创新  

Study on Design of Ningbo Daxie Second Bridge Tower

作　　者：张培君 顾民杰 ZHANG Peijun;GU Minjie(Shanghai Municipal Engineering Design Institute(Group)Co.,Ltd.,Shanghai 200092,China)

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：《建筑施工》2024年第4期443-446,共4页Building Construction

基　　金：上海建工集团重点研发课程(19YJKF-25)。

摘　　要：宁波大榭二桥为主跨392 m的单索面斜拉桥,桥塔采用了特殊的“帆”形结构样式,且为钢混组合结构,主梁为钢梁。新型桥塔结构设计为该桥设计的重要难点和特色。从结构受力分析的角度入手,展示桥塔结构的受力状况,论述桥塔各重要节点的设计理念与设计方案,对桥塔整体、拉索锚固区和钢混节点3个关键部位重点展开分析,供类似工程参考。The Ningbo Daxie Second Bridge is a single cable plane cable-stayed bridge with a main span of 392 m.The bridge tower adopts a special sail-shaped structural style,with a steel-concrete composite structure,and a steel beam serving as the main girder.The design of the new bridge tower structure is an important difficulty and feature of the bridge design.From the perspective of structural stress analysis,the stress state of the bridge tower structure is demonstrated.And the design concept and design scheme of each crucial node of the bridge tower is discussed.The three key parts of the whole bridge tower,the cable anchorage zone and the steel-concrete joint are further analyzed.This can be a reference for similar projects.

关 键 词：大榭二桥 斜拉桥 帆形塔 结构计算 桥塔设计 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]