建筑钢结构进展2026，Vol.28Issue(2)：85-96,12.DOI:10.13969/j.jzgjgjz.20241008001
超大跨度双跨机库局部加强及提升施工技术研究
Study on Partial Reinforcement and Lifting Construction Technology for a Double Large-Span Hangar
王昂 1贾尚瑞 1邢遵胜 2严航洋1
作者信息
- 1. 浙江精工钢结构集团有限公司,浙江 绍兴 312030
- 2. 浙江精工钢结构集团有限公司,浙江 绍兴 312030||天津大学 建筑工程学院,天津 300072
- 折叠
摘要
Abstract
During the construction process of the steel roof structure of a large-span maintenance hangar,in-situ assembly on the ground with two-stage cumulative lifting is an economical and efficient construction method.Nowadays,the double large-span span hangar in the field adopts the technology of installing lifting frames on the top of the three support columns and temporary lifting towers at the gate opening.Temporary tower structures require high foundation bearing capacity,while reclaimed land typically has low bearing capacity.The foundation construction for the tower is relatively difficult,and the original technology cannot meet the on-site construction requirements.Therefore,a new construction technology is needed to solve the installation of the steel roof of the hangar in soft foundation areas.Based on the practice of the Xiamen Xiang'an Taigu 2 Maintenance Hangar Project,a technique involving partial strengthening of the gate truss and non-temporary-support lifting was proposed and adopted for the first time.This technology adjusts the layout of the gate truss structure to eliminate the need for temporary lifting towers at the gate opening,and uses existing structural columns for lifting.This makes the boundary conditions in the construction state as consistent as possible with those in the design state,thereby minimizing the impact of the construction process on structural stress.Through the simulation analysis of the whole construction process,the steel roof assembly and pre-deformation measurement were conducted,and the sections of about 3.6%of the members were fine tuned.Through new construction techniques,the problem of foundation treatment for hangar construction in soft foundation areas can be solved.This type of construction method is simpler than traditional techniques and has good economic benefits,which can provide a reference for similar engineering construction.关键词
双跨机库/大跨度屋盖钢结构/无支点整体提升/预变形/施工模拟分析/施工技术Key words
double-span hangar/large-span steel roof structure/overall lifting without temporary support/pre-deformation/construction simulation analysis/construction technology分类
建筑与水利引用本文复制引用
王昂,贾尚瑞,邢遵胜,严航洋..超大跨度双跨机库局部加强及提升施工技术研究[J].建筑钢结构进展,2026,28(2):85-96,12.
