STABILITY ANALYSIS OF THREE-LAYER ORTHOGONAL QUADRANGULAR CONE PRESTRESSED GRID STRUCTURES
Grid structures become one of the preferred structural types for long-span structures due to its excellent engineering performance.In order to improve the defects of large deformation and large amount of steel consumption of traditional grid structure under the condition of large span,the purpose of enhancing the overall stiffness and bear-ing capacity of the structure is achieved by applying prestress to the grid structures.The application of prestress inev-itably affects the stability performance of the grid,and the supporting form has a great influence on the stability of the grid structures.Through the stability analysis of the grid after applying different prestresses,the influence of dif-ferent prestressed cable methods on the stability of the grid is obtained,providing the reference for the actual engi-neering construction of the grid.