Publicacións

@article{otero-chans_behavior_2025,

title = {Behavior of cross-laminated timber panels under different shear loading scenarios},

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

url = {https://www.sciencedirect.com/science/article/pii/S2352710225013038},

doi = {10.1016/j.jobe.2025.113066},

issn = {2352-7102},

year  = {2025},

date = {2025-10-01},

urldate = {2026-03-18},

journal = {Journal of Building Engineering},

volume = {111},

pages = {113066},

abstract = {There is limited knowledge of the behaviour of cross-laminated timber (CLT) panels in situations other than their use as slabs or walls. As a preliminary step toward implementing tests on structural-sized bending members, three types of tests were carried out on 60 cm thick, three-layer CLT panels to verify their behaviour under shear loading in different conditions. Also, numerical models were developed and relate to the observed failure modes. First, in-plane shear tests were performed. Second, pull-out shear tests were conducted on specimens composed of CLT and concrete with recycled aggregates. In these two tests, two orientations of the CLT face boards relative to the load direction were investigated: parallel and perpendicular. Finally, four bending tests were conducted on short CLT I-beams to evaluate the flexural shear strength of the CLT panels used as the web of the section. In the first two tests, the shear strength was found equivalent for parallel-oriented panels, with variations of up to 33 % in the case of perpendicular-oriented panels. Both orientations showed similar slip modulus values in the CLT-concrete pull-out shear tests. The glued flange-web joint of the beams did not show any noticeable failure or slippage, which would enable the design of cassette solutions with CLT ribs. The results of this research will serve as the basis for the design of various structural solutions, including timber-concrete composite (TCC) systems with casettte cross-section in which perforations made in the CLT panels act as shear connectors between the timber and the concrete.},

keywords = {Cross-laminated timber, Destructive test, Finite element model, Shear strength, Timber-concrete composite},

pubstate = {published},

tppubtype = {article}

}

@article{Pérez20103452,

title = {Optimal adjustment of EC-2 shear formulation for concrete elements without web reinforcement using Genetic Programming},

author = {Juan Luis Pérez-Ordóñez and Antoni Cladera and Juan R. Rabuñal-Dopico and Fernando Martínez-Abella},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-77957309973&doi=10.1016%2fj.engstruct.2010.07.006&partnerID=40&md5=6537d2065a64a7d6e253a86080cd55ec},

doi = {10.1016/j.engstruct.2010.07.006},

issn = {01410296},

year  = {2010},

date = {2010-01-01},

urldate = {2010-01-01},

journal = {Engineering Structures},

volume = {32},

number = {11},

pages = {3452-3466},

abstract = {This paper presents the improvement of the EC-2 shear strength formulation for concrete beams without shear reinforcement. The method used is based on the modification of the Genetic Programming (GP) technique configured to generate symbolic regression from a set of experimental data. Starting from the EC-2 formulation, several points of the equation are subject to optimization, together with the set of restrictions that must be fulfilled, achieving in this way to control and direct the searching process. It is specifically pursued to improve the term of size effect, the influence of the amount longitudinal reinforcement and the bending-moment-shear-force interaction. For the development and checking of the models it has been used in about 1200 experimental tests on concrete beams from the literature. The four expressions obtained are analyzed in depth through GP and, finally, three expressions of great simplicity are proposed that improve, significantly, the shear strength prediction with respect to the proposals of the Eurocode 2 and ACI 318-05 Code. © 2010 Elsevier Ltd.},

note = {cited By 27},

keywords = {318-05 codes; Beam; Code of practice; Concrete beam; Concrete elements; Eurocode2; Experimental data; Experimental test; Force interaction; Longitudinal reinforcement; Shear reinforcement; Size effects; Strength prediction; Symbolic regression; Web reinforcement, algorithm; bending; concrete; numerical model; optimization; reinforcement; shear strength; structural component, Concrete beams and girders; Concrete reinforcements; Genetic programming; Model checking; Optimization, Shear strength},

pubstate = {published},

tppubtype = {article}

}