EG

Majano-Majano A, Lara-Bocanegra A.J, Xavier J, Morais J. (2019) Measuring the cohesive law in mode I loading of Eucalyptus globulus. Materials, 12(1):23.

Abstract Assessing wood fracture behavior is essential in the design of structural timber elements and connections. This is particularly the case for connections with the possibility of brittle splitting failure. The numerical cohesive zone models that are used to simulate

Lara-Bocanegra A, Roig A, Majano-Majano A, Guaita M. (2019) From eucalyptus to elastic gridshells. Form and Force. 60th Anniversary Symposium of the Association for shell and spatial structures (IASS), Barcelona, Spain.

Abstract Elastic timber gridshells are built by bending small cross-section, long and good quality timber laths on site to the desired shape. This procedure enables double curvature structures of great aesthetic appearance and high structural efficiency. Despite their interest, few

Lara-Bocanegra AJ, Majano-Majano A, Arriaga F, Guaita M. (2018) Long-term bending stress relaxation in timber laths for the structural design of lattice shells. Construction and Building Materials, 193:565-575.

Abstract Timber lattice shells are multi-layered structures of great interest for medium and long span lightweight solutions in structural and aesthetic terms. They are constructed by bending initially straight laths. This curving process can lead to high initial stresses in

Crespo J, Majano-Majano A, Xavier J, Guaita M. (2018) Determination of the resistance-curve in Eucalyptus globulus through double cantilever beam tests. Materials and Structures, 51(3):77.

Abstract The prediction of the fracture behaviour through reliable and practical criteria in the design of structural timber elements and connections has become of great importance and demands a proper fracture characterization of the material. Eucalyptus globulus Labill is envisioned

Xavier J, Majano-Majano A, Lara-Bocanegra AJ, Guaita M. (2018) Identification of bending stiffness parameters of Eucalyptus globulus from the virtual fields method. 11º National Congress on Experimental Mechanics (CNME) & 1º Iberian Congress on Theoretical and Experimental Mechanics and Materials (TEMM), Porto, Portugal.

Abstract A research project (BIA2015-64491-P) has been carried out aiming to develop high performance structural applications on Eucalyptus globulus L., namely addressing drying processes and the development of laminated products [1]. In this work, it is proposed to address the

Lara-Bocanegra AJ, Majano-Majano A, Ortiz J, Guaita M. (2018) Full scale laboratory prototype of a long barrel-vaulted gridshell. Construction, testing and numerical model. World Conference on Timber Engineering (WCTE 2018), Seoul, Republic of Korea.

Abstract This paper presents the construction process, full scale tests and numerical model of a long barrel-vaulted gridshell prototype made of Eucalyptus globulus Labill. The species potential for gridshell structures is analyzed. A novel erection method taking advantage of the

Majano-Majano A, Lara-Bocanegra AJ, Xavier J, Morais J. (2018) Experimental research on hardwood connections loaded perpendicular to the grain. World Conference on Timber Engineering (WCTE 2018), Seoul, Republic of Korea.

Abstract Knowing the splitting capacity of beams loaded perpendicular to the grain by dowel-type connections is of primordial importance in timber structures. The analytical equation in this regard included in the European Eurocode 5 only depends on geometrical parameters. In

Lara-Bocanegra A, Majano-Majano A, Crespo J, Guaita M. (2018) Dispositivo para ensayos de relajación de tensiones a flexión en láminas de madera curvadas con radio constante (Test device for bending stress relaxation in curved timber laths under constant radius). Patent with examination. ES 2 649 543 A1.

Lara-Bocanegra A.J, Majano-Majano A, Guaita M. (2017) Stress relaxation on bending laths: review of test procedures and structural analysis approaches applied to timber gridshells. II Latin American Congress of Timber Structures + II Ibero-Latin American Congress of Timber in Construction (CLEM+CIMAD 2017), Buenos Aires, Argentina.

Abstract Timber gridshell structures get their shape by curving on site initially straight timber laths. This curving process produces stresses in the laths that can easily reach values close to the allowable ones. These initial bending stresses are partially reduced

Lara-Bocanegra AJ, Majano-Majano A, Ortiz J. Guaita M. (2017) Elastic gridshell prototype made of Eucalyptus globulus: construction and laboratory test. II Latin American Congress of Timber Structures + II Ibero-Latin American Congress of Timber in Construction (CLEM+CIMAD 2017), Buenos Aires, Argentina.

Abstract The necessary revision of the construction processes in search of more sustainable solutions leads to the use of high efficiency structural systems and environmen-friendly materials. In this sense, timber gridshells represent a solution of great interest for lightweight roofs