Graphical limit state analysis
Application to statically indeterminate trusses, beams and masonry arches
Première édition
Thèse présentée en vue de l'obtention du grade de docteure en information et communication. Lire la suite
The thesis explores the application of design fiction in media education, a creative practice that combines speculative design and science fiction to examine potential futures for new technologies. The author suggests using design fiction
to develop a critical inquiry method in media education, based on inquiry-based learning approaches. The aim is to enable students to ask critical questions about digital media and technology to enhance their critical thinking. As part
of this research, an educational programme using design fiction and a rubric for assessing students' critical inquiry competence were developed in collaboration with Action Médias Jeunes, a Belgian non-profit association. The thesis presents the results of this collaboration and addresses the research question of how design fiction can help build a critical inquiry method in media education and how this method can support the development of learners’ critical inquiry
competence. The results show that design fiction can help build this method in its way of encouraging students in formulating hypotheses about the future and investigating them through the production of diegetic prototypes and speculative scenarios. Furthermore, design fiction can contribute to the development of the critical inquiry competence through its ability to generate critical speculative questions about technologies and their future.
Géraldine Wuyckens studied information and communication sciences at UCLouvain, initially in Mons and later in Louvain-la-Neuve, where she earned her master's degree. She continued her journey as a teaching and research assistant, supporting students in the Master's program in Information and Communication Sciences and Technologies. During this time, she conducted her thesis, specialising in media education.
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Spécifications
- Éditeur
- Presses universitaires de Louvain
- Auteur
- Jean-François Rondeaux,
- Collection
- Thèses de la Faculté d'architecture, d'ingénierie architecturale, d'urbanisme
- Langue
- anglais
- Catégorie (éditeur)
- Sciences appliquées > Science des matériaux et procédés
- BISAC Subject Heading
- TEC021000 TECHNOLOGY & ENGINEERING / Materials Science
- BIC subject category (UK)
- TG Mechanical engineering & materials
- Code publique Onix
- 06 Professionnel et académique
- CLIL (Version 2013-2019 )
- 3071 Génie civil
- Date de première publication du titre
- 21 février 2024
- Type d'ouvrage
- Thèse
Livre broché
- Date de publication
- 15 novembre 2023
- ISBN-13
- 9782390614005
- Ampleur
- Nombre absolu de pages : 266
- Dépôt Légal
- D/2023/9964/36 Louvain-la-Neuve, Belgique
- Code interne
- 106191
- Format
- 16 x 24 cm
- Poids
- 80 grammes
- Type de packaging
- Aucun emballage extérieur
- Prix
- 33,00 €
- ONIX XML
- Version 2.1, Version 3
- Date de publication
- 15 novembre 2023
- ISBN-13
- 9782390614012
- Ampleur
- Nombre absolu de pages : 266
- Code interne
- PDF106191
- Prix
- 22,00 €
- ONIX XML
- Version 2.1, Version 3
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Sommaire
Introduction 21
1 Plastic design and limit state analysis 27
1.1 Structural design and analysis . . . . . . . . . . . . . . . . 27
1.2 Theory of Plasticity . . . . . . . . . . . . . . . . . . . . . 29
1.3 Fundamental theorems of Plasticity . . . . . . . . . . . . . 32
1.4 Limit state analysis . . . . . . . . . . . . . . . . . . . . . . 35
1.4.1 Kinematic versus geometric views of statics . . . . 35
1.4.2 Kinematic approaches and upper-bound theorem . 38
1.4.3 Static approaches and lower-bound theorem . . . . 42
1.4.4 Complete limit state analysis . . . . . . . . . . . . 43
1.5 Plastic design . . . . . . . . . . . . . . . . . . . . . . . . . 45
2 Strut-and-tie modelling using graphic statics 51
2.1 Strut-and-tie networks for structural analysis and design . 51
2.2 Classical graphic statics . . . . . . . . . . . . . . . . . . . 54
2.2.1 From parallelogram of forces to form and force diagrams
. . . . . . . . . . . . . . . . . . . . . . . . . 54
2.2.2 Graphical analysis through reciprocal diagrams . . 56
2.2.3 Elasticity and static indeterminacy . . . . . . . . . 59
2.3 Graphical tools for interactive structural design . . . . . . 64
3 Reciprocal diagrams and static indeterminacy 69
3.1 Static indeterminacy in structural design . . . . . . . . . . 69
3.2 Static indeterminacy as a combination of independent stress
states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
3.3 Geometrical freedom of force diagrams . . . . . . . . . . . 77
3.4 Limit state analysis using reciprocal diagrams . . . . . . . 82
3.5 Designing with indeterminate force diagrams . . . . . . . 89
4 Pin-jointed trusses 95
4.1 Working hypotheses . . . . . . . . . . . . . . . . . . . . . 95
4.2 Complete graphical limit state analysis . . . . . . . . . . . 96
4.3 Optimization procedure on the force diagram . . . . . . . 105
4.4 Case studies: internally and externally statically indeterminate
trusses . . . . . . . . . . . . . . . . . . . . . . . . . . 109
4.5 Perspectives . . . . . . . . . . . . . . . . . . . . . . . . . . 117
17
5 Beams 123
5.1 Bending and funicular polygons . . . . . . . . . . . . . . . 123
5.2 Statically admissible limit states of funiculars polygons . . 129
5.3 Admissible geometrical domains . . . . . . . . . . . . . . . 137
5.4 Case studies: statically indeterminate beams . . . . . . . 156
6 Masonry arches 167
6.1 Kinematic and static methods for structural assessment of
masonry arches: a short overview . . . . . . . . . . . . . . 167
6.2 Conciliating lower bound theorem and thrust line theory:
the equilibrium approach . . . . . . . . . . . . . . . . . . 176
6.3 Admissible geometrical domains . . . . . . . . . . . . . . . 178
6.4 Graphical safety of masonry arches . . . . . . . . . . . . . 187
6.4.1 Stability under self-weight . . . . . . . . . . . . . . 189
6.4.2 Stability related to the abutments . . . . . . . . . 195
6.5 Current work and perspectives . . . . . . . . . . . . . . . 196
Conclusion 201
List of Figures 205
References 225