Installation and Construction Techniques for Elevated Corridors in High-Rise Buildings

With the advancement of construction technology, the structural forms of high-rise buildings are becoming increasingly diverse. Among them, the applications of elevated corridors and cantilevered structures are also becoming more widespread. The installation construction of elevated corridors often adopts an integral lifting construction scheme, which can significantly reduce the difficulty of installation construction. Integral lifting requires high structural stiffness and advanced construction techniques. Accurate calculation of the deformation pre-adjustment value during pre-assembly and precise control of the lifting force during the entire elevation process are crucial for smooth construction. Based on the engineering research of the Shenzhen Free Trade Center project, the installation and construction techniques of elevated corridors with integral lifting were investigated. The finite element numerical analysis method was utilized to simulate the corridor deformation throughout the construction process, achieving precise control over both “deformation” and “force variation.” Additionally, the study examined various lifting schemes for integral lifting, analyzing the lifting forces associated with different approaches, providing valuable references for determining the optimal integral lifting scheme. The findings of the research had significant implications for subsequent simulations and calculations of integral lifting for similar elevated corridor structures. Finally, the paper discussed the key problems in the construction process, such as the integrated simulation method of the lifting, lateral stiffness, forming internal force, etc., which could provide a reference for the design and construction.