东南大学学报（自然科学版）2023，Vol.53Issue(6)：979-987,9.DOI:10.3969/j.issn.1001-0505.2023.06.004
张靖皋长江大桥南航道桥设计创新
Design innovation of south channel bridge of Zhangjinggao Yangtze River Bridge
摘要
Abstract
Focusing on Zhangjinggao Yangtze River Bridge,the largest span bridge of the world,the main control factors considered in the design of the bridge are outlined.The technical challenges faced in the con-struction of 2 300-m-span suspension bridge on a typical soft soil foundation in the downstream area of the Yangtze River are elaborated.In response to the technical challenges posed by six"world records"and guided by problems and requirements,the following technical measures are proposed:a self-balancing structure sys-tem for the main cable of suspension bridge,an ultra-high composite tower with steel box and steel tube re-strained concrete,an ultra-large-scale anchorage supported by the composite diaphragm wall foundation which transforms from supporting structure into permanent structure,a super-scale self-propelled prefabricated cable saddle,an intelligent sensing and replaceable main cable anchor system,and a comprehensive intelligent anti-corrosion system for the entire bridge.Through theoretical analysis,modeling,and experimental verification,six corresponding world pioneering technologies have been formed,providing theoretical guidance and techni-cal support for the design and construction of the bridge.关键词
张靖皋长江大桥/悬索桥/最大跨径/设计创新Key words
Zhangjinggao Yangtze River Bridge/suspension bridge/maximum span/design innovation分类
交通工程引用本文复制引用
王仁贵..张靖皋长江大桥南航道桥设计创新[J].东南大学学报（自然科学版）,2023,53(6):979-987,9.基金项目
国家重点研发计划资助项目(2021YFB1600304). （2021YFB1600304）
