Comparative Analysis of Three Kinds of Mega Steel Frame System Static Performance

摘要

Mega steel structure because of its own advantages is widely used in high-rise buildings, especially in super high-rise buildings. Mega frame structure, mega steel frame-prestressed composite bracing structure and mega steel frame-cable bracing structure were analyzed in this paper. The structure deformation and internal force of beam and column of structures were studied under load combination of Pretension and vertical loads, horizontal wind load. The results show that prestressed cable can improve the system stiffness, make the overall stiffness more uniform and control the deflection of mega beam and axial force of mega column effectively.