Stability Analysis Of Latticed Dome With Steel Plates

The spherical latticed dome can seal up large space without props. It's so artistic that it has been developed quickly and used widely in recent years. In all sorts of spherical latticed dome, there is a novelty one called Latticed Dome with Steel Plates, which is used as top covers of gas tanks in the engineering projects of JiuQuan Iron and Steel Company, AnShan Iron and Steel Company and WuHan Iron and Steel Company. The features of this structure are light and large-spanned. Its stability problem is especially prominent. Therefore its stability analysis must be carried out.Considering the use of strength in the process of post-buckling, the load -deflection curves of this structure are drawn based on the geometrically nonlinear FEM, traced by arc-length method and computed by the structural analysis software ANSYS. Through the analysis of load-deflection curves, reasons and process of buckling, some valuable inclusions are deduced. In addition, many laws have been discovered after the analysis of different boundary conditions, height-span radios and sections of the Latticed Dome with Steel Plates. These conclusions and discoveries have certain instructional significance to engineering design.