Título: | OPTIMUM DESIGN OF CABLES IN PRESTRESSED CONCRETE STRUCTURES CONSIDERING THE ULTIMATE LIMIT STATE OF BENDING | ||||||||||||
Autor: |
MELISSA SENHORINHO VENTURA E ESTEVES |
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Colaborador(es): |
LUIZ ELOY VAZ - Orientador CLAUDIA RIBEIRO EBOLI - Coorientador |
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Catalogação: | 19/AGO/2002 | 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=2869&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=2869&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.2869 | ||||||||||||
Resumo: | |||||||||||||
The search for the optimum design, with the minimum
possible material consumption and satisfying, at the same
time, safety and in service conditions and also the
constructive aspects, must be a central preoccupation of
all engineers.Therefore the optimization of structures is
such an important engineering area, which studies tools for
helping the engineering to obtain the optimum design.
The objective of this work is to present on methodology for
the determination of the optimum design of prestressed
cable, considering both the ultimate limit state and the in
service limit state.The solution of the problem is obtained
through optimization techniques, normally,the Han-Powell
algorithm is applied for solving the non-linear programming
problem.The design variables are the prestressed force and
the parameters, which define the geometry of the cable and
the deformation of the beam in given sections.The proposed
optimization problem is to minimize the prestressed force
in beams while constraining the geometry of the cable and
the stresses during in service loads and satisfying safety
in the ultimate limit state in prescribed sections.
A computer program, based on the formulation, was developed
which allowed the user to obtain the optimum design of the
cable and the correspondent minimum prestressed force,
after immediate losses which are considered constant along
the beam length.
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