This paper presents an analytical model for the analysis of steel-concrete composite beams including partial interaction within the geometric nonlinear finite deformation theory. Due to the complexity of the formulation the model is afterward simplified within the framework of small strains and moderate rotations, considered acceptable for practical structural problems, and the numerical solution is obtained through the finite element method. A numerical example involving a cantilever subjected to an eccentric axial load, selected to emphasise the nonlinear geometric behaviour, is presented to illustrate the results obtained from the proposed formulation, showing how the geometric nonlinear effects are influenced by the shear connection stiffness.

Geometric nonlinear composite beam model including partial interaction

DALL'ASTA, Andrea;ZONA, Alessandro;
2011-01-01

Abstract

This paper presents an analytical model for the analysis of steel-concrete composite beams including partial interaction within the geometric nonlinear finite deformation theory. Due to the complexity of the formulation the model is afterward simplified within the framework of small strains and moderate rotations, considered acceptable for practical structural problems, and the numerical solution is obtained through the finite element method. A numerical example involving a cantilever subjected to an eccentric axial load, selected to emphasise the nonlinear geometric behaviour, is presented to illustrate the results obtained from the proposed formulation, showing how the geometric nonlinear effects are influenced by the shear connection stiffness.
2011
9788889972236
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11581/241817
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