摘要
浦东机场波音机库屋盖结构跨度为163 m,进深100 m,由网架和门前钢桁架构成,施工过程中采用了"地面拼装,两次整体提升"的安装方法。详细论述了该方案及其空中停留保障措施、负载转移等关键技术,采用有限元软件MIDAS/Gen全过程仿真计算整体提升过程;分析了两次提升过程中结构内力和节点位移变化规律,并采取措施实现同步提升,成功地将2 000多t钢屋架整体提升34 m。
The 163×100m roof structure of Boeing hangar at Pudong airport consists of truss and steel frames.A general construction plan of ＂ground assembly and twice integral lifting＂ was employed.The program and its key technologies such as safeguard mesures in the air and load transfer were described.Besides,integral lifting via MIDAS/Gen calculation was expounded.Based on analysis of structure stress and change rule of joints displacements,certain measures were adopted to achieve synchronous lifting,making the 2000-t steel structure successfully lift 34 meters.
出处
《重庆交通大学学报（自然科学版）》
CAS
北大核心
2010年第4期650-653,共4页
Journal of Chongqing Jiaotong University(Natural Science)
关键词
波音机库
网架
两次整体提升
负载转移
Boeing hangar
truss
twice integral lifting
load transfer
