Design and Construction of the Beam Support Structure under the Suspension Bridge Tower of the Yangtze River Basin
吕婷婷①LV Ting-ting;付鑫豪②FU Xin-hao
①南京市公共工程建设中心,南京210000;
②中交路桥华东工程有限公司,上海200000
①Nanjing Public Engineering Construction Center,Nanjing 210000 , China;
②Shanghai Road and Bridge Huadong Engineering Co.,Ltd.,Shanghai 200000 , China
摘要:仙新路过江通道主桥采用主跨1760m的单跨门型塔大跨度悬索桥,悬索桥南塔塔柱与下横梁采用异步施工法，下横梁采用落地钢管支架施工。针对下横梁底部为圆弧形的结构特点,特采用槽钢自制弧形析架作为承重结构,达到了支架结构受力清晰、施工效率高效可控,混凝土外观控制良好的目的。
Abstract: 'The main bridge of the river-cross channel of Xianxin Road adopts a single-span potal tower and a large-span suspensionbridge with a main span of 1760m.The tower column and the lower beam of the suspension bridge of the south tower adopts theasynchronous construction method, and the lower beam is constructed with flr-standing steel pie suppors. In view of the arc-shapelstructure characteristics at the bottom of the lower beam, the selF-made are-shaped truss of channel steel is specially used as the bearingstructure which achieves the purpose of the support structure stress clearly, efficient and controllable construction efficiency, and godconcrete appearance control.
关键词:下横梁施工;落地钢管支架;弧形析架
Key words: lower beam construction; floor-standing steel pipe support; arc-shaped truss
价值工程-文章出处：吕婷婷,付鑫豪.长江流域悬索桥索塔下横梁支架结构设计与施工[J].价值工程,2023,42(20):76-78. |
