大跨度多层焊接球弧形钢网架整体提升技术研究  

Study on Integral Lifting Technology of Long-Span Multi-layer Welded Spherical Arc Steel Grid

作　　者：陆飞 LU Fei(China Railway Construction Group Southern Engineering Co.,Ltd.Guangzhou 514400,China)

机构地区：[1]中铁建设集团南方工程有限公司,广州514400

出　　处：《广东土木与建筑》2024年第4期108-111,共4页Guangdong Architecture Civil Engineering

摘　　要：厦门某新建高铁站换乘中心钢结构屋盖为大跨度多层焊接球弧形网架,网架需先在地面胎架上进行拼装,待拼装完成后,通过液压提升装置提升至钢柱顶,该工程存在施工场地受限、工程体量大、屋盖造型复杂、工期紧张、社会关注度高等特点。为确保钢网架施工质量、施工安全和缩短施工工期,工程采用钢网架整体提升技术,减小了高空作业的风险和施工成本,较好地完成上述预期目标。文章详细阐述大跨度多层焊接球弧形钢网架整体提升过程中的关键控制点,主要包括吊前准备工作、整体提升流程和临时措施,为类似项目的钢网架整体提升施工提供参考依据。The steel structure roof of a new high-speed railway station transfer center in Xiamen is a large-span multi-layer welded spherical arc grid.The grid needs to be assembled on the ground tire frame first.After the assembly is completed,it is lifted to the top of the steel column by a hydraulic lifting device.The project has the characteristics of limited construction site,large project volume,complex roof shape,tight construction schedule,and high social attention.In order to ensure the construction quality,construction safety and shorten the construction period of the steel grid frame,the project adopts the overall lifting technology of the steel grid frame,which reduces the risk of high-altitude operations and construction costs,and better completes the above expected goals.This article elaborates in detail the key control points in the overall lifting process of the long-span multi-layer welded spherical arc steel grid,mainly including the pre-hoisting preparations,the overall lifting process and temporary measures,and provides a reference for the overall lifting construction of the steel grid in similar projects.

关 键 词：大跨度 钢网架 整体提升 施工技术 

分 类 号：TU745.2[建筑科学—建筑技术科学]