The Structural Engineer > Archive > Volume 49 (1971) > Issues > Issue 4 > A Study of the Behaviour of Folded Plate Structures
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A Study of the Behaviour of Folded Plate Structures

The paper describes an experimental and theoretical study of the behaviour of folded plate structures, in which particular attention is given to examining the influence of end diaphragm restraint upon the structural action. The end diaphragms used in the experimental investigations were mounted on special bearings which ensured that the diaphragms imposed no ‘overall’ longitudinal force or longitudinal bending moment upon the folded plate structure. The diaphragms therefore provided a minimum of overall restraint whilst ensuring that the ends of component plate remained in the plane of the diaphragm. Nevertheless this degree of restraint is considerably more than that assumed in the elasticity method of analysis and it is shown this method will generally underestimate the overall rigidity of a folded plate structure. The paper also establishes that the finite element method can accurately predict the behaviour of folded plate structures. K.C. Rockey and H.R. Evans