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A. M. P. G. Dias, H. M. P. Cruz, S. M. R. Lopes, and J. W. van de Kuilen, ‘Stiffness of dowel-type fasteners in timber–concrete joints’, Proceedings of the Institution of Civil Engineers - Structures and Buildings, 163 (4), 257-266, 2010.

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Article

Influence of Interlayer in Timber-Concrete Composite Structures with Threaded Rebar as Shear Connector-Experimental Study

1Institut International d’ingénierie de l’Eau et de l’Environnement (2iE), Laboratoire Eco-Matériaux de Construction (LEMC), 01 BP 594 Ouagadougou 01, Burkina Faso

2Université Clermont Auvergne (UCA), Institut Pascal (IP), BP 10448, F-63000 Clermont-Ferrand, France

3CNRS, UMR 6602, Institut Pascal, F-63171 Aubière, France

4Université Clermont Auvergne (UCA), Institut Pascal (IP), BP 10448, F-63000 Clermont-Ferrand, France;CNRS, UMR 6602, Institut Pascal, F-63171 Aubière, France


American Journal of Civil Engineering and Architecture. 2018, Vol. 6 No. 1, 38-45
DOI: 10.12691/ajcea-6-1-5
Copyright © 2018 Science and Education Publishing

Cite this paper:
Decroly DJOUBISSIÉ DENOUWÉ, Adamah MESSAN, Eric FOURNELY, Abdelhamid BOUCHAIR. Influence of Interlayer in Timber-Concrete Composite Structures with Threaded Rebar as Shear Connector-Experimental Study. American Journal of Civil Engineering and Architecture. 2018; 6(1):38-45. doi: 10.12691/ajcea-6-1-5.

Correspondence to: Adamah  MESSAN, Institut International d’ingénierie de l’Eau et de l’Environnement (2iE), Laboratoire Eco-Matériaux de Construction (LEMC), 01 BP 594 Ouagadougou 01, Burkina Faso. Email: adamah.messan@2ie-edu.org

Abstract

The influence of interlayer on mechanical properties of timber-concrete composite structures using threaded rebar as shear connector is studied. Push-out tests are performed with two configurations of connection between timber and concrete with and without plywood interlayer: one threaded rebar and two cross-threaded rebars. The experimental study consists of push-out tests to characterize the failure modes, the load carrying capacity, and the stiffness for serviceability and ultimate limit states of the connections. The responses of the configurations with interlayer are compared with those without interlayer. The comparisons show that the presence of interlayer reduces the shear strength and the stiffness of the timber-concrete connection with threaded reinforcing bar as connector. Furthermore, based on the experimental results and using nonlinear regression, a mathematical model of each one of configurations of connection is derived which can be easily used with nonlinear FE analyses of Timber-Concrete Connection (TCC) beams.

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