Publicacións

@article{otero-chans_perforated_2023,

title = {Perforated board shear connector for timber-concrete composites},

author = {Dolores Otero-Chans and Javier Estévez-Cimadevila and Félix Suárez-Riestra and Emilio Martín-Gutiérrez},

url = {https://doi.org/10.1080/17480272.2022.2089594},

doi = {10.1080/17480272.2022.2089594},

issn = {1748-0272},

year  = {2023},

date = {2023-05-01},

urldate = {2026-08-10},

journal = {Wood Material Science & Engineering},

volume = {18},

number = {3},

pages = {919–932},

publisher = {Taylor & Francis},

abstract = {Timber-concrete composites systems offer major structural advantages, as well as additional benefits in terms of sustainability in comparison with only-timber or only-concrete solutions in building work. This paper describes the behaviour of shear connections for a new and simple construction system. It is based on the transmission of shear forces between the two layers of the system through perforations in the wooden boards, without the necessary collaboration for additional connecting elements (fasteners, adhesive or notches). Tests were performed to analyse how the behaviour of the shear connectors was affected by the arrangement of the boards (single or separated), the type and distribution of the perforations and the use of slab reinforcement. The experimental results indicate that this solution has high strength values, with very high service stiffness and ductile failure when at ultimate state, which enables a high level of composite action for connection design. The stiffness coefficient varies from 283.5–887.7 kN/mm per metre. The test pieces with separated boards and reinforcement bars showed the best results, regardless of the size and arrangement of the holes in the boards.},

keywords = {composite and reconstituted products, mechanical testing, shear connection, Timber flooring, Timber-concrete composites},

pubstate = {published},

tppubtype = {article}

}

@article{estevez-cimadevila_testing_2020,

title = {Testing of different non-adherent tendon solutions to reduce short-term deflection in full-scale timber-concrete-composite T-section beams},

author = {Javier Estévez-Cimadevila and Dolores Otero-Chans and Emilio Martín-Gutiérrez and Félix Suárez-Riestra},

url = {https://www.sciencedirect.com/science/article/pii/S2352710219326865},

doi = {10.1016/j.jobe.2020.101437},

issn = {2352-7102},

year  = {2020},

date = {2020-09-01},

urldate = {2026-08-06},

journal = {Journal of Building Engineering},

volume = {31},

pages = {101437},

abstract = {Bending tests were performed on 8 timber-concrete-composite T-section beams with a span of 9 m. The aim was to study the efficacy of the timber-concrete connection system and the influence of different tensioning systems on behaviour of the beams. Four configurations were studied: joists without a tendon, ones with a pretensioned tendon or with an unpretensioned tendon, and others with a self-tensioning device patented by the authors. Timber-concrete connections using perforated steel plates glued to the joists by epoxy adhesive displayed an efficiency of 98.9% in terms of theoretical full composite action. Beams with a self-tensioning device attained a minimum ultimate load equivalent to a surface load of 16.26 kN/m2, which is 4.07 times the estimated load in the quasi-permanent hypothesis and 2.17 times that from the total load hypothesis. Using the self-tensioning device instead of tendon-free beams gave rise to a 30.3% reduction in relative deflection under the total load hypothesis.},

keywords = {Bending tests, Experimental analysis, Glulam, Pretensioning, TCC, Timber flooring, Wooden structures},

pubstate = {published},

tppubtype = {article}

}