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Behaviour of longitudinally stiffened plates under uniform compression
2004 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Compressed flange of a box girder is often designed as a longitudinally stiffened plate. This structural element can be also found in heavy industrial buildings, off-shore platforms and similar structures. Different types of stiffener, so called open and closed stiffener, are often welded along the plate to increase its resistance.Three major collapses occurred during the erection of box girders bridges (1969, 1970 and 1971). The reason was inadequate design of the box girder. This led to large-scale research projects including experiments of various parts of a box girder. These experiments were used here to validate a non-linear finite element model.Within a scope of this work, more insight in the behaviour of longitudinally stiffened plates was achieved as well as an understanding of a design method. Furthermore, during the work on this project a basic understanding of modern engineering tolls was gained. Following programs were used:CUFSM, FEMGEN/VIEW, ABAQUS, MathCad. Non-linear FE analysis taking into account geometrical imperfections and material imperfections (residual stress) were performed on a plate longitudinally stiffened with:one trapezoidal stiffener, three trapezoidal stiffeners, two open stiffeners, and four open stiffeners, These calculations were performed to study the influence of geometrical and material imperfection on the resistance of the plates.

Place, publisher, year, edition, pages
2004.
Keywords [en]
Technology, FEM, stability, plates, bridge, design, Eurocode
Keywords [sv]
Teknik
Identifiers
URN: urn:nbn:se:ltu:diva-44414ISRN: LTU-EX--04/224--SELocal ID: 23224897-f1f8-4d69-97a8-91c1a8225f08OAI: oai:DiVA.org:ltu-44414DiVA, id: diva2:1017692
Subject / course
Student thesis, at least 30 credits
Educational program
Civil Engineering, master's level
Examiners
Note
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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Output format
  • html
  • text
  • asciidoc
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