Numerical formulation for nonlinear analysis of concrete and steel shells with deformable connections.
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Date
2021
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Abstract
A two-dimensional interface finite element capable of associating flat shell elements positioned one above the other was developed. The implemented interface element can physically simulate the contact between the flat shell elements and connect
the reference planes of the shell elements above and below it. The formulation presented allows consideration of nonlinear behavior for the deformable connection as
well as for the concrete and steel materials that make up the shell structure. One of the
practical applications analyzed in this research is the numerical simulation of composite floors formed by a reinforced concrete slab connected to steel beams through a deformable connection. In this case, the concrete slab and the steel beams are discretized
by flat shell elements and the deformable connection is discretized by two-dimensional
interface elements. Experimental and numerical results from literature were used to
validate the implemented elements. In the two examples analyzed, the results obtained
for the displacements were close, with the difference, in the first case, being associated
with uncertainties during the experimental test and in the second, the difference in
theories used in the formulation of the implemented elements.
Description
Keywords
Two-dimensional interface element, Flat shell element, Composite floor, Deformable connection
Citation
SILVA, A. R. da; DIAS, L. E. S. Numerical formulation for nonlinear analysis of concrete and steel shells with deformable connections. REM - International Engineering Journal, Ouro Preto, v. 74, p. 297-307, jul./set. 2021. Disponível em: <https://www.scielo.br/j/remi/a/cMDktb7vRBmHFmWhVcSMyTG/>. Acesso em: 15 mar. 2023.