Development of methods to take account of structural imperfection in the critical analysis of light metallic structures

G.G. Chewe Ngapeya, A. Khelil & A. Pamies
When calculating a structure, the stresses can be determined by analyzing the first or second order; the choice of method is guided by the potential influence of the deformation of the structure. In general, we can see that the scaffolding and shoring structures, due to their low rigidity (stiffness compared to buildings), come in loads of critical coefficients lower than 3. Their structural defects (imperfections) generate significant second order effects and must be taken into...
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