有平衡重转体施工上承式砼箱型拱桥设计  

Design of through Concrete Box Arch Bridge with Balanced Weight Rotating Construction

作　　者：郭小平 骆鹏 GUO Xiaoping;LUO Peng(China Nerin Engineering Co.,Ltd.,Nanchang,Jiangxi 330038,China)

机构地区：[1]中国瑞林工程技术股份有限公司,江西南昌330038

出　　处：《有色冶金设计与研究》2021年第4期37-39,46,共4页Nonferrous Metals Engineering & Research

摘　　要：湖北恩施鹤峰县南渡江大桥为净跨190 m的上承式钢筋混凝土等截面箱型拱桥。该桥主拱圈采用有平衡重转体施工。从施工工序、转动体系、转动设施和组部构造设计三个方面,详细介绍了该桥的施工设计亮点。该施工工艺安全经济,很好地解决了山区低等级公路中特大跨度桥梁施工难题。Nandu River Bridge in Hefeng County,Enshi,Hubei Province is a deck reinforced concrete box arch bridge with equal section and a clear span of 190 m.The main arch ring of the bridge is constructed by rotating with balance weight,and the weight of the rotating system is 6006 t.The construction technology highlights of the bridge are introduced in detail from three aspects:construction process,rotating system,rotating facilities and detailed structure.The practice shows that the construction technology is safe and economical,and solves the construction problem of medium and large-span bridges in low-grade highways in mountainous areas.

关 键 词：有平衡重转体施工 转动体系 普通钢筋混凝土球铰 劲性骨架 细部构造 

分 类 号：U448.223[建筑科学—桥梁与隧道工程]