Título: | ANALYSIS OF THE DYNAMIC BEHAVIOR OF SEMI-EMBEDDED COLUMNS | |||||||
Autor: |
ANTONIO EDUARDO GONCALVES SAMPAIO |
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Colaborador(es): |
PAULO BATISTA GONCALVES - Orientador |
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Catalogação: | 18/FEV/2005 | 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=5935&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=5935&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.5935 | |||||||
Resumo: | ||||||||
The study of partially embedded piles is an important topic
in civil engineering due to its use in several engineering
fields. The aim of the present work is to derive an exact
solution for the natural frequencies and vibration modes
of these piles and, based on these results, to analyze the
nonlinear behavior of the column-foundation system. In
order to study the free vibration problem, the energy
functional of the system is obtained, allowing the
derivation of the partial differential equations of motion
for the buried and unburied parts of the pile. The possible
solutions of these equations are then obtained as a
function of a set of non-dimensional parameters
characteristic of the problem. The consideration of
the geometric nonlinearity of the beam leads to a set of
nonlinear differential equations. The solution of these
equations is obtained by employing the Ritz method to
discretize the column in space and the methods of Galerkin-
Urabe and Harmonic Balance to derive an approximate
solution for the resulting equations of motion. Based on
these results, the influence of the geometrical and physical
parameters of the column-foundation system on the free and
forced non-linear vibrations of the pile is analyzed.
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