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Développement d’un connecteur pour plancher mixte bois-béton
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deSuraÿ_75331400_Raynal_72181300_2020.pdf
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- Abstract
- To work, a mixed timber-concrete floor requires the use of a connector making the connection between the 2 materials. This connector must offer sufficient rigidity to the floor so that it can function effectively. To achieve this, the connection must take up the shear present at the interface between the 2 materials. The resumption of this effort can generate different modes of failure in the floor, some of which are to be favored thanks to their more ductile nature. The objective of this work is to synthesize the modes of failure that are likely to appear in a mixed timber-concrete floor, to describe the methods which make it possible to size this type of floor as well as to make 3 connectors which are the subject of laboratory tests. The tests carried out are pure shear tests which allow the obtaining of sliding moduli and maximum resistance forces of the 3 connectors developed. The results obtained show that a composite floor can withstand shear forces exceeding 350 kN per connector and that the wood-concrete bond plays a non-negligible role in this resistance.