武汉某高架桥施工技术  

CONSTRUCTION TECHNIQUE OF A VIADUCT IN WUHAN

作　　者：陈世宁[1] 王后举[2] 

机构地区：[1]武汉船舶职业技术学院,武汉430050 [2]中铁第四勘察设计院集团有限公司,武汉430063

出　　处：《建筑技术》2014年第9期808-810,共3页Architecture Technology

摘　　要：武汉某高架桥全长1410 m,全线9联上部结构主要采用截面等高等宽直线钢箱梁或异型预应力混凝土箱梁。通过分段方案的策划、逐步焊接的安排和施工温度的控制,做到了整体划分得当、焊接准确、焊接残余应力小、CO_2气体保护得当且受温度影响小。A viaduct in Wuhan is 1410m long and it adopts a superstructure composed of nine segments,which are mainly made of straight steel box beam with same section width and height or specially-shaped prestressed concrete box beam.The expected purposes of this project,such as reasonable division,accurate welding,small welding residual stress,proper CO2 gas shield and small temperature influence,etc.,are successfully realized through reasonable planning of division,effective welding arrangement and control of construction temperatures.

关 键 词：高架桥 分段施工 焊接 温度变化 

分 类 号：U453[建筑科学—桥梁与隧道工程]