Título: | MODELING THE BEHAVIOR OF COMPOSITE BEAM-COLUMNS COMPOSED OF BUILT-UP SECTIONS FILLED WITH REINFORCED CONCRETE | ||||||||||||
Autor: |
GABRIEL AMOS ALVES CRUZ LIMA |
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Colaborador(es): |
RAUL ROSAS E SILVA - Orientador SEBASTIAO ARTHUR LOPES DE ANDRADE - Orientador |
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Catalogação: | 21/JAN/2021 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | THESIS | ||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=51312&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=51312&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.51312 | ||||||||||||
Resumo: | |||||||||||||
A growing concern in civil construction is to obtain structures that are
more resistant, rigid and economically feasible. This study aims to evaluate
the behavior of steel-concrete columns of composite section, through numerical
modeling. The studied cross-sections were composed of two rolled I profiles,
and other with C-lip channels, connected by I profiles, and filled with reinforced
concrete. The ABAQUS software was used to evaluate the structural behavior of
the columns subjected to flexural, compression and eccentric compression loads.
The model was calibrated through experimentally obtained data from previous
studies, and results provided by the Brazilian National Standards, and it was able
to properly reproduce the moment-displacement and load-displacement curves.
The obtained resistances from the numerical models were greater than the ones
expected by the theoretical solution, especially under compression load. In order
to evaluate the economic feasibility of the proposed composite model, a design
example of an industrial shed was conducted, and it showed a significant increase
in moment of inertia when compared to steel-only box sections, which resulted in
savings of up to 11 percent in equivalent mass of steel. Finally, a parametric study was
made to investigate the influence of the number and disposition of the connectors,
and the contribution of the concrete resistance and reinforcement s diameter in
the strength of the columns.
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