摘要
针对冷竹关大桥桥位处的工程地质情况,提出并分析了钢箱梁、钢桁组合梁、分体式钢箱组合梁3种桥型方案的优缺点,最终选用了分体式钢箱组合梁的变更设计方案。采用有限元软件对该桥进行了施工阶段分析与验算,计算结果表明主梁在顶推施工及梁上运梁过程中,主梁的强度及挠度均满足设计要求。
On the basis of the engineering geological conditions at the bridge site of Lengzhuguan Bridge, three bridge types of steel box girder, steel truss composite beam and split-type steel box composite girder are proposed and the advantages and disadvantages of which are analyzed, and accordingly the changed design scheme of split-type steel box composite girder is finally adopted.The finite element software is used to analyze and check the safety at construction stages of the bridge.The calculation results show that the strength and deflection of the main beam meet the design requirements during incremental launching construction and transporting girders on girders.
作者
安艳涛
AN Yan-tao(CCCC First Highway Consultants Co.,Ltd.,Xi’an,Shaanxi 710065,China)
出处
《黑龙江交通科技》
2023年第3期90-92,共3页
Communications Science and Technology Heilongjiang
关键词
隧间桥
钢箱组合梁
顶推施工
PBL剪力连接件
bridge between tunnels
steel box composite girder
incremental launching construction
PBL shear connector
