About the author:

1. China Construction Fifth Engineeriing Bureau Co., Ltd., Changsha, Hunan 410000, China;2. Department of Civil Engineering, Tsinghua University, Beijing 100084, China; 3. China ConstructionFifth Division Southern Construction Subsidiary Co., Ltd., Shenzhen, Guangdong 518000, China

Abstract:

The force and shape control of super high-rise complex steel structures is the key problem inthe construction process. The configuration and mechanical characteristics of the construction structuredepend on the rationality and optimization of the construction scheme. Therefore, a reasonableconstruction scheme is the basis of precise construction,which can greatly simplify the construction anddesign process. Taking the Tower C project of the Shenzhen Bay Super Headquarters Base as anexample, based on the integrated collaborative analysis, the overall cumulative lifting and closureconstruction process of the corridor and the underlying steel structure are systematically optimized.Firstly, four-step, five-step, and six-step lifting methods are proposed, and the influence of differentschemes on structural deformation and stress was compared and analyzed. Secondly, the relationshipbetween the height of the lifting point and the structural stress and deformation was revealed, and theoptimal lifting point was determined. Finally, the influence of the closure sequence on the mechanicalproperties of the structure was quantitatively evaluated by comparing the post-filled components of the twoclosure schemes.