Static And Stability Analysis On Cable-atayed Double-layer Cylindrical Latticed Shells

The cable-stayed structure is a new large-span space structure system to meetpeople’s pursuit of large-span buildings. It has been widely used in practical engineeringdue to its good mechanical performance and magnificent architectural style. Thecable-stayed structure, which research is becoming more complete, has moreconcentrated on cable-stayed truss structure and cable-stayed truss structure comparedto cable-stayed double layer cylindrical lattice shell structure and mainly under specificengineering background. Given the situation mentioned above, this paper createcable-stayed double layer cylindrical lattice shell model to study its static force andstability and complete cable-stayed double layer cylindrical lattice shell structure designtheory under different parameters based on the current situation to provide a reference.Firstly, study the main influences, force and deformation, that affect the propertiesof cable-stayed reticulated shell most under different span ratio and load distribution,and compare it with corresponding ordinary shell. It turns out that double cylindricalreticulated shell shows significantly improvement on static performance after beingfurnished by the cables. Secondly, study the effect of different cable-stayed layout oncable-stayed double layer cylindrical lattice shell structures’ static force to obtain someconclusions. Finally, study static performance of cable-stayed double layer cylindricallattice shell structure under different tower heights.The method of eigenvalue buckling analysis and geometric nonlinear finiteelement analysis are applied during stability analysis of the structure and it is assumedthat material remains linear elastic. This essay compared and analyzed the changingrules stability after applying cables on the reticulated shell structure. Also it had beenconsidered that eigenvalue buckling factor and load-displacement curve under differentschemes of cables and tower height. The influence of different parameters on the criticalload and stiffness of the structure had been defined.