Under the assumption of linear viscoelastic behaviour for the concrete slab and linear elastic behaviour for the steel beam, coupling between creep and shear-lag effects in the slab of composite beams is analysed. By assuming as unknowns vertical and longitudinal displace¬ments of the generic cross section and warping of the concrete slab, linear integral differ¬ential balance equations are obtained. Numerical analysis, performed by means of a step-by-step procedure, permits evaluating the time evolution of shear-lag effects.
Accoppiamento tra viscosità e shear-lag nelle travi composte acciaio-calcestruzzo
LEONI, Graziano
1998-01-01
Abstract
Under the assumption of linear viscoelastic behaviour for the concrete slab and linear elastic behaviour for the steel beam, coupling between creep and shear-lag effects in the slab of composite beams is analysed. By assuming as unknowns vertical and longitudinal displace¬ments of the generic cross section and warping of the concrete slab, linear integral differ¬ential balance equations are obtained. Numerical analysis, performed by means of a step-by-step procedure, permits evaluating the time evolution of shear-lag effects.File in questo prodotto:
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