• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Master's Dissertation
DOI
10.11606/D.18.2013.tde-02042014-160425
Document
Author
Full name
Alexandre Magno Lima Cardoso
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2013
Supervisor
Committee
Laier, José Elias (President)
Leonel, Edson Denner
Oyamada, Rui Nobhiro
Title in Portuguese
Estudo da rigidez efetiva do cabo de pontes estaiadas
Keywords in Portuguese
Cabos
Elementos finitos
Pontes estaiadas
Abstract in Portuguese
As pontes estaiadas vêm sendo cada vez mais utilizadas no país, seja pela competitividade alcançada em função do domínio da tecnologia por parte dos empreiteiros e calculistas, seja pelo apelo estético. Os cabos, principais componentes deste sistema estrutural, que conferem o caráter altamente hiperestático e o comportamento não linear da estrutura são, em muitos modelos, numericamente simulados como um elemento de treliça, com a sua rigidez calculada em função da geometria e nível de carregamento do cabo. No presente trabalho é verificada a influência da componente tangencial do peso próprio do cabo, desprezada por Dishinger no cálculo da rigidez equivalente do elemento de cabo, comparada com o método proposto por Hajdn. Os resultados também são comparados com os da modelagem do cabo discretizado em elementos de treliça, seguindo a Formulação Posicional dos Elementos Finitos, que se mostrou bastante eficaz para simulação do cabo isolado, onde a capacidade de representar o comportamento do cabo foi verificada através de exemplos que mostram aspectos do comportamento não linear do mesmo.
Title in English
Study of the effective stiffness of a cable of cable stayed bridges
Keywords in English
Cable stayed bridges
Cables
Finite elements
Abstract in English
Cable stayed bridges are being increasingly used in Brazil due to the recent master on this technology by the builders and designers and because of its aesthetics appealing. The principal components of this type of bridge, the cables, responsible for high non-linear behavior of the structure, are frequently modeled as truss element with its stiffness evaluated according to the tension and horizontal projection of the span of the cable. On the present paper the influence by neglecting the tangential component of the weight of the cable on Dishingers formula is investigated. The results are compared with the formula by Hajdn and with a model in which the cable is discretized in truss bars in a program based on the Positional Finite Element Method which has presented good results to describe the non-linear behavior of the cable.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2014-04-07
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
Centro de Informática de São Carlos
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2021. All rights reserved.