摘要
水柏铁路北盘江大桥是我国第一座铁路钢管混凝土拱桥,主桥结构采用上承式X形钢管混凝土拱,跨度236m;主拱肋及横向联接系在拱肋未灌注混凝土前为完全钢结构,在灌注混凝土后及大桥运营阶段,主拱肋为钢管混凝土结构;实腹板及上下盖板按照型钢混凝土结构设计;拱上墩座为加劲的钢箱墩座,并与拱肋连接;腹杆设计采用H形构件、节点板连接的构造;涂装层按长效防腐进行设计,拱圈钢结构外表面采用热喷涂复合涂层体系,涂层类型为喷铝合金+封闭+涂装。
Beipanjiang large bridge on the ShuichengBaiguo Railway is the first concrete filled steel tube railway arch bridge in China. The main structure adopts upheld Xform concrete filled steel tube arch with a span of 236 m. Before filling concrete in the arch rid, the main arch rid and cross linking system are pure steel structure. After filling concrete, the main arch rid is concrete filled steel tube structure. The solid bellyboard and the top and bottom cover boards are designed according to sectionsteel concrete. The pier seat on the arch is a strengthened steelbox pier seat which is linked with the arch rid. The bellypole design is of Hshape structure and jointboard connection. The coating is designed to be of lasting antisepsis standard. The outside surface of steel structure on arch adopts hot coating of complex material which includes spouting aluminumalloy+sealing+coating.
出处
《中国铁道科学》
EI
CAS
CSCD
北大核心
2003年第5期34-39,共6页
China Railway Science
关键词
铁路桥
拱桥
钢管混凝土
管结构
钢管拱
设计
制造
Railway bridge
Arch bridge
Concrete filled steel tube
Tube Structure
Steel tube arch
Design
Manufacture
