For large steel structural industrial buildings,the construction of grid roof structures faces the challenge of working at height.Adopting the method of piece-by-piece assembly and welding at height not only results in a large workload and high construction difficulty,but also places high demands on workers.Additionally,it is difficult to ensure safety protection,and safety accidents such as falling from height are prone to occur.To address these issues,an ultra-large component hydraulic synchronous lifting technology is adopted,which uses a hydraulic synchronous lifting system to lift the entire designed lifting unit of the steel structural grid to the designated installation position.Only post-installed rods are assembled at height,which significantly reduces the workload of working at height,lowers construction risks,and improves construction efficiency.Taking the integrated lifting project of a steel structural grid for an automobile assembly plant in Daqing as an example,this paper summarizes the overall approach,key technologies,and difficult points of the construction process,aiming to provide a reference for similar construction projects.
维普
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