预应力钢拉杆与大跨度网架整体提升组合施工技术  

Whole Lifting Technology of Prestressing Steel Tie Rod and Large Span Net Frame

作　　者：杜琦 陈萌 岳海龙 杨盛斌 程叙埕 潘晓波 胡伟 DU Qi;CHEN Meng;YUE Hailong;YANG Shengbin;CHENG Xucheng;PAN Xiaobo;HU Wei(China Construction Science and Industry Co.,Ltd.,Chengdu,Sichuan 610040,China)

机构地区：[1]中建科工集团有限公司,四川成都610040

出　　处：《施工技术》2021年第2期107-111,共5页Construction Technology

摘　　要：成都天府国际机场T1航站楼A,C指廊采用局部张弦网架结构,指廊中间天窗带设置下弦钢拉杆替代下弦杆,钢拉杆共120根,12根为1组,A,C指廊各5组。网架结构采用液压同步提升技术进行施工,钢拉杆采用并联双杆液压张拉技术进行预应力张拉施工。通过对施工方法的全过程模拟、施工计算结果及施工实测数据的对比分析,验证了预应力钢拉杆与大跨度网架整体提升组合技术应用的可靠性与正确性。Chengdu Tianfu International Airport T1 terminal A,C refers to the corridor with partial tensioned truss structure,refers to the middle skylight of the corridor with lower chord steel rod instead of lower chord rod,120 steel rods,12 rods for a group,A,C refers to the corridor five groups.The grid structure is constructed by hydraulic synchronous lifting technology,and the steel tie rod is constructed by parallel double-bar hydraulic tension technology.By comparing and analyzing the whole process simulation of construction method,construction calculation results and construction measured data,the reliability and correctness of the application of the whole lifting technology of prestressed steel tie rod and long-span grid frame are verified.

关 键 词：钢结构 网架 预应力 整体提升 

分 类 号：TU758􀆰[建筑科学—建筑技术科学]