Finite element modelling of the nonlinear load-slip behaviour of full-scale timber-to-concrete composite T-shaped beams
| Autor: | Mourad Khelifa, J. L. Batoz, E.-M. Meghlat, H. Ait-Aider, M. Oudjene, Pascal Lardeur |
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| Přispěvatelé: | Laboratoire d'Etude et de Recherche sur le Matériau Bois (LERMAB), Université de Lorraine (UL), Université Mouloud Mammeri [Tizi Ouzou] (UMMTO), Université de Technologie de Compiègne (UTC), ANR-11-LABX-0002,ARBRE,Recherches Avancées sur l'Arbre et les Ecosytèmes Forestiers(2011) |
| Rok vydání: | 2018 |
| Předmět: |
business.industry
Computer science Composite number 0211 other engineering and technologies Full scale 020101 civil engineering 02 engineering and technology Numerical models Structural engineering Slip (materials science) Finite element method 0201 civil engineering [SPI]Engineering Sciences [physics] Nonlinear system 021105 building & construction Ceramics and Composites business ComputingMilieux_MISCELLANEOUS Beam (structure) Civil and Structural Engineering |
| Zdroj: | Composite Structures Composite Structures, Elsevier, 2018, 196, pp.117-126. ⟨10.1016/j.compstruct.2018.04.079⟩ |
| ISSN: | 0263-8223 |
| Popis: | Timber-to-concrete flooring systems have exponentially increased in the last decades and have attracted many researchers and constructors. They are employed in both new modern constructions and renovations of residential and non-residential buildings with the development of lightweight construction and rehabilitation programs. Nevertheless, this requires a rapid progress in gaining the needed tools and methods to design safely and properly such full-scale composite systems. This article is devoted to the development of new analysis techniques and predictive numerical models dedicated to screwed connections at large scale level. The aim is to investigate the nonlinear structural behavior of full-scale screwed timber-to-concrete beams. The main objective is to identify and validate an appropriate numerical finite element model in the context of full-scale applications with large number of screws, using the so-called verification and validation methodology (V&V). First, the results from different modelling techniques are critically discussed in the context of middle scale timber-to-timber samples assembled with two screws. These preliminary results highlight the limitations of the existing modelling techniques. Finally, an efficient and predictive numerical approach is specifically developed and validated experimentally through a full-scale timber-to-concrete composite T-shaped beam assembled with 46 SFS-screws. |
| Databáze: | OpenAIRE |
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