Application of Key Technologies for Multi-Terminal Change of Frame-Double Core Tube Super High-Rise Building

Frame-double-core tube structure is a structural form suitable for super high-rise buildings with long or irregular standard floor plan. In this paper, the structural arrangement and structural member size of the double core tube are determined through the analysis of structural indexes such as stiffness calculation and torsion effect under rare earthquake. At the same time, through the research of all-steel climbing frame and aluminum formwork under the condition of super high-rise height and structural change, the application of all-steel climbing frame and multi-end aluminum formwork with super high-rise height change are solved, which speeds up the construction progress, greatly reduces the safety and quality risks in the construction process of super high-rise buildings, and at the same time, reduces the material and labor costs to meet the development requirements of green construction.