摘要
与新建高速公路项目相比,改扩建工程拼宽桥梁设计相对复杂,限制因素较多,计算难度大。以京哈高速公路沈山改扩建工程为依托,对七里台大桥拼宽设计方案中的相关技术问题进行分析,总结得出拼宽设计要点、门架墩钢盖梁设计思路和拼宽施工技术要点,以期为类似改扩建项目桥梁的拼宽设计提供参考。
Compared with the newly-built expressway project,the design of the widened bridge in the reconstruction and expansion project is relatively complex,with many limiting factors and large calculation difficulty.Based on the Shenshan reconstruction and expansion project of the Beijing-Harbin expressway,the relevant technical issues in the widening design scheme of Qilitai bridge are analyzed,and the key points of widening design,the design ideas of gantry pier steel cover beam,and the key points of widening construction technology are summarized,so as to provide reference for the widening design of bridges in similar reconstruction and expansion projects.
作者
王宇琪
Wang Yuqi(Liaoning Provincial Transportation Planning and Design Institute Co.,Ltd.,Shenyang 110166,China)
出处
《北方交通》
2025年第8期9-14,共6页
Northern Communications
关键词
京哈高速
改扩建
桥梁拼宽
设计
施工
Beijing-Harbin expressway
Reconstruction and expansion
Bridge widening
Design
Construction
