Research on Temporary Support-Free Reverse Construction Technology for Super High-Rise Inclined Suspension Structures

As a relatively novel structural form， the super high-rise inclined suspension structure can flexiblly adjust the inclination angle and suspension method according to the requirements of building functions and appearance. However， its construction process is complex and poses significant challenges. Taking the South China headquarters project of Sany Heavy Industry Co. ， Ltd. as an example， a novel construction method known as the temporary support-free reverse construction method is proposed for super high-rise inclined suspension structure through the comparison and selection of different construction schemes. This method involves first installation the inclined columns of the outer frame and the joint layer structure， then lifting the hanging columns and temporarily fixing it in its inclined position using measures such as chain blocks. next， the suspension layer structure is installed from the bottom to top to achieve temporary support-free installation. Compared with the conventional approaches， namely the temporary-supported sequential construction method and the temporary-supported reverse construction method， although this method has relatively high technical difficulty， it does not require the temporary supports， and has advantages in safety， cost and construction period. On this basis， the construction process of the proposed method was simulated and analyzed to ensure the construction safety and reliability， providing a reference for the construction of similar projects.