On the Strengthening Methods of Steel grid Structures lifting

During the process of grid structure lifting, the bearing capacity of some bars may overrun, because lifting point bears the main gravity of whole grid structure and the overall stress of grid structure changes [1]. Taking a steel grid structure lifting project as an example, this thesis analyzes the bearing capacity and stability of bars in the lifting process by MST software modeling. Besides, strengthening methods of bars are introduced. With the rapid development of national economy, the steel grid structure is more and more used in the production of all aspects. Project scale and complex structure system brings network frame integral hoisting process complexity and security problem [2]. With the MST software, the paper discusses the force of the space truss hoisting process, to ensure the safety of structures in the construction process to provide a reliable basis.