Research on Atypical Tower Crown Support System and Reinforcement Scheme

To investigate the feasibility of tower temporary support system and reinforcement schemes for the construction of a non-typical tower crown steel structure, this paper employs finite element numerical simulation to analyze a project located in Wuchang District, Wuhan City. The simulation encompasses the erection process of the tower temporary support, the deformation and stress state of the tower crown steel structure after unloading, and the stress and displacement of the main structure during construction and after the addition of reinforcement. Based on the simulated results of stress, displacement, and buckling behavior, the reliability of the construction scheme was evaluated. The results show that the temporary support system for the tower crown and its connected tower crown steel structural members all meet the requirements of design codes in terms of strength, stability, and deflection during the construction stage. However, the study also finds that some members in the main structure have insufficient load-bearing capacity reserve. After reinforcement by adding strengthening structures, both the strength and stability of the main structure have reached the requirements of design codes. The above simulation and analysis results verify the feasibility of the design of the temporary support system for the tower crown and the strengthening scheme, and the research conclusions can provide a reference for the construction and design of similar steel structure projects.