Développement d'un connecteur Rigide-Ductile-Économique pour dalles composites en bas lamellé-croisé et béton pour les bâtiments multiétages

Authors: Lamothe, Serge
Advisor: Sorelli, LucaBlanchet, Pierre
Abstract: Wooden structures are a good solution for building multi-story buildings. Wood is known for its architectural appearance, low footprint and mechanical strength. The addition of a thin layer of concrete connected using shear connectors to a piece of glued-laminated timber (GLULAM) or a Cross-Laminated Timber (CLT) considerably increases the rigidity of the floor. It is therefore possible to build longer span in building while respecting the Serviceability Limit States (SLS) deflection criteria as well as the Ultimate Limit States (ULS) bearing capacity. These innovative solutions are also less sensitive to vibrations since they are more rigid. The comfort of users is improved. This thesis focuses on the development of a shallow notch type connection suitable for composite slabs. This connection is designed to obtain a rigid initial behavior, followed by a big ductility. This is possible by using the compressive ductile nature of the timber. Several configurations are tested in CLT and GLULAM. The depth of the cut varies from 20 mm to 35 mm. The influence of the presence of an acoustic insulation between the timber and the concrete is also quantified. The first shear tests on the different configurations showed very good results. Three 8 m single span CLT-HPC slabs were cast. The CLT-HPC slabs were designed with a multi-criteria approach to meet the National Building Code of Canada (NBCC) standards and to maximize certain factors considered important by the building industry such as floor thickness, floor weight, the cost, etc.
Document Type: Mémoire de maîtrise
Issue Date: 2019
Open Access Date: 13 March 2019
Permalink: http://hdl.handle.net/20.500.11794/34005
Grantor: Université Laval
Collection:Thèses et mémoires

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