Abstract
An efficient numerical approach is presented for the analysis of cladding-network interaction in pretensioned cable roof structures under static loads. The approach is based on the sub-region mixed energy principle, which allows for the linear and non-linear aspects of the behaviour of the structure to be treated separately. Membrane action of the cladding is represented by a five-force model calculated by the finite element method. The governing equilibrium and compatibility equations are solved using the dynamic relaxation technique with kinetic damping. Computations are carried out for an experimental model of a hyperbolic paraboloid net with a discrete membrane surface and the numerical and experimental results are compared.
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