With the emergency of high-rise buildings,steel structures have been widely used because of the high strength,light weight,convenient construction and excellent seismic resistance.As the core parts of the steel structure system,the connecting joints directly affect the safety and economy of the structure.In the aspects of design principles and construction technology,the safety,reliability and economic principles of high-rise building steel structure connection joints are analyzed,and the construction technologies such as welding,bolting connection and hoisting are discussed.Combined with the actual cases of Shanghai Tower,Beijing National Stadium(Bird's Nest)and Shenzhen Ping An Finance Center,the application of the design and construction technology of connecting nodes in practice is exhibited.
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