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Faculté des Sciences appliquées
Faculté des Sciences appliquées
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Contribution to the implementation of robustness in European design recommendations for steel and composite structures

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Gemoets, Killian ULiège
Promotor(s) : Demonceau, Jean-François ULiège
Date of defense : 25-Jun-2020/26-Jun-2020 • Permalink : http://hdl.handle.net/2268.2/9020
Details
Title : Contribution to the implementation of robustness in European design recommendations for steel and composite structures
Translated title : [fr] Contribution à l’implémentation de règles de robustesse dans les normes européennes de dimensionnement pour les structures métalliques et mixtes
Author : Gemoets, Killian ULiège
Date of defense  : 25-Jun-2020/26-Jun-2020
Advisor(s) : Demonceau, Jean-François ULiège
Committee's member(s) : Jaspart, Jean-Pierre ULiège
Franssen, Jean-Marc ULiège
Seret, Sébastien 
Language : English
Number of pages : 98
Keywords : [en] robustness
[en] strategies
[en] tying method
Discipline(s) : Engineering, computing & technology > Civil engineering
Institution(s) : Université de Liège, Liège, Belgique
Degree: Master en ingénieur civil des constructions, à finalité spécialisée en "civil engineering"
Faculty: Master thesis of the Faculté des Sciences appliquées

Abstract

[en] At present, Eurocode 1 Part 1-7 presents different strategies to deal with the problem of robustness. However, for each of these strategies, the content is limited to the statement of general principles. Consequently, in recent years, several researches have been carried out to develop calculation and design tools for robustness. Thanks to these researches, many new tools and works are available to practitioners, but the lack of comprehensive approaches limits their scope and use.

In this work, approaches for handling the robustness problem in steel and composite structures are developed for the strategies presented in the Eurocode, and based on the tools currently available. For each of the approaches developed, the tools it requires to use, the limitations it presents and the analysis and verification steps to be followed are presented in detail. In addition, all this information is summarized in a global flowchart proposed to deal with the robustness problem.

This first task highlights several inconsistencies concerning the prescriptive tying method currently proposed by the Eurocode. Proposals for improvements have actually already been made recently.

Therefore, in a second step, this thesis focuses more specifically on this tying method. To assess the relevance of the rules currently proposed by the Eurocode regarding the tying method and the degree of robustness which these rules allow to reach, a study of a braced structure undergoing the loss of a column is carried out. In the context of this study, the beam-column joints of the structure first have the resistance specified by the tying method. Subsequently, different joint configurations are studied. By comparing the results obtained, several conclusions are drawn about the tying method. Also, this study shows that simple joints such as header plate connections have a too low degree of robustness, and that it is more advantageous to use semi-rigid/rigid joints such as flush end-plate connections.


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Author

  • Gemoets, Killian ULiège Université de Liège > Master ingé. civ. constr., fin.

Promotor(s)

Committee's member(s)

  • Jaspart, Jean-Pierre ULiège Université de Liège - ULiège > Département ArGEnCo > Adéquat. struct. aux exig. de fonct.& perfor. techn.-écon.
    ORBi View his publications on ORBi
  • Franssen, Jean-Marc ULiège Université de Liège - ULiège > Département ArGEnCo > Ingénierie du feu
    ORBi View his publications on ORBi
  • Seret, Sébastien Bureau d'Etude Greisch
  • Total number of views 72
  • Total number of downloads 202










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