Experimental investigations on full-scale Timber Concrete Composite (TCC) floor systems with various composite connectors are presented in this paper. The stiffness, strength, and failure modes of were evaluated. The 9.2 m long and 2.4 m wide TCC floor segments were comprised of 245 mm thick, 7-ply Cross-laminated Timber (CLT) panels with 150 mm concrete topping connected with three types of shear connectors: (i) self-tapping screws, (ii) steel kerf plates, and (iii) glued-in Holz-Beton-Verbund (HBV) plates. Six TCC floor segments were tested to failure under symmetric four-point bending and three TCC floor segments were tested under torsional bending by applying eccentric loading near the edge. The floor deformations at nine locations and connector slips at CLT-concrete interfaces at eight locations along the length of the floor were measured. The full-scale tests showed that the steel kerf plates—for the selected connector configurations- exhibited the highest capacity and stiffness.
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The project was supported by Natural Resources Canada (NRCAN) through the Green Construction Wood (GCWood) program. The support by the UNBC lab technicians Michael Billups and Ryan Stern is greatly appreciated.
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Shahnewaz, M., Jackson, R., Tannert, T. (2023). Experimental Investigations of Full-Scale Cross-Laminated Timber Concrete Composite Floors. In: , et al. Proceedings of the Canadian Society of Civil Engineering Annual Conference 2021 . CSCE 2021. Lecture Notes in Civil Engineering, vol 241. Springer, Singapore. https://doi.org/10.1007/978-981-19-0511-7_34
Publisher Name: Springer, Singapore
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Online ISBN: 978-981-19-0511-7
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