Título: | NUMERICAL MODELING OF SEMI-RIGID CONNECTION FOR STEEL STRUCTURES | ||||||||||||||||||||||||||||||||||||||||
Autor: |
DEVANEY CRISTINA LIMA CARDOSO |
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Colaborador(es): |
DEANE DE MESQUITA ROEHL - Orientador |
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Catalogação: | 20/FEV/2001 | 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=1270&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=1270&idi=2 [es] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=1270&idi=4 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.1270 | ||||||||||||||||||||||||||||||||||||||||
Resumo: | |||||||||||||||||||||||||||||||||||||||||
Semi-rigid connections are now-a-days widely employed by
steel structures. Such
connections take better advantage of the overall structure
capabilities. In this work the
properties and classification of semi-rigid connections is
discussed. Additionally numerical
and analytical models for prediction of connection behavior
are presented.
A finite element based methodology for the numerical
evaluation of moment-rotation
relations and load carrying capacity of semi-rigid
connections is proposed. An important
feature of this model is a complete a three dimensional
geometrical description of the many
components of the connection, such as plates, column, beam,
bolts and nuts and the
interaction between them. The extension of beam and column
to be modeled is determined by
numerical calibration. Frictionless contact between the
connection components is considered
by a specific contact algorithm which ensures non-
penetration and permits separation of the
individual parts. In this work a solution strategy for the
contact problem based on the
establishment of a linear complementary problem is adopted.
The three dimensional modeling is carried out by a mesh of
hybrid hexahedral eight
node elements, which allow the use of relatively coarse
meshes. Effects such as the presence
of large deformations, yielding of components and pre-
stressing of bolts are present in the
model.
The proposed model is applied to the analysis of the
behavior of extended end-plate
connections and web cleat connections. The numerical
results are compared to experimental
data for model validation. One of the objectives of this
analysis is the evaluation of the
participation of each component on the overall flexibility
of the connection.
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