Comparison Between the Linear and Nonlinear Responses of Cable Structures Ii – Dynamic Loading

Cable suspended structures undergo large displacements under loading. The nonlinear response of cable structures is widely discussed in literature stressing that a nonlinear analysis is necessary in order to determine their accurate behaviour. But no explicit reference has been made to the actual differences between the linear and nonlinear responses. This paper analyzes the differences between the linear and nonlinear responses of cable suspended structures under dynamic loading. Several types of structures (cable truss, hyperbolic paraboliod) are being studied in order to make an explicit comparison between the linear and nonlinear responses. Multiple levels of pretension are considered varying from 10% to 50%. The source of non-linearity in the structural behaviour which is being treated in this paper is the one attributable to changes in geometry.