摘要
兰州中川机场二期航站楼钢结构屋盖为曲面空间网格结构,采用分块液压同步提升技术。结构提升分块、临时提升点的设计、原结构复核、提升支架的设计、楼面加固措施和大悬挑曲面网格结构的提升等是研究的主要内容。结合工程实际,利用MIDAS/Gen7.80有限元分析软件,首次采用部分檩条随结构提升以平衡悬挑端变形,利用实用新型专利——钢绞线限位装置保证提升过程的安全,提升过程中设置导链防止结构倾覆等一系列的措施,成功实现了大悬挑曲面空间网格结构的液压同步提升。
The steel roof of Lanzhou Zhongchuan Airport second period terminal project is curved space lattice structure,which applies partitioned hydraulic synchronous lifting technology. This paper mainly focuses on partition of lifting structure,design of the temporary lifting points,recheck of primary structure,design of lifting support frame,strengthening measures of the floor and lifting of the large cantilever curved space lattice structure. Based on practical engineering,using FEM software MIDAS /Gen7. 80,a series of measures were taken as follows： purline was used to balance the deformation of cantilever terminal,a utility model patent was adopted to ensure the safety of lifting procedure,the reversible chain was used for overturn-preventing. These measures guaranteed the success of the lifting of the large cantilever curved space lattice structure.
出处
《施工技术》
CAS
北大核心
2016年第8期72-75,共4页
Construction Technology
关键词
钢结构
曲面
空间网格
液压同步提升
施工技术
steel structures
curved surface
space lattice
hydraulic synchronous lifting
construction
