Grupos Investigadores

Miembros del Grupo

Líneas de Investigación

  • Análisis y diseño automatizado de estructuras de edificación mediante nuevas tecnologías
  • Análisis y diseño de uniones estructurales de acero, madera y mixtas
  • Técnicas computacionales y experimentales para el diseño estructural

Palabras Clave

  • Desarrollo de software estructural
  • Diseño de estructuras
  • Ensayos estructurales experimentales
  • Modelos numéricos estructurales de elementos finitos
  • Uniones estructurales

Publicaciones Científicas desde 2018

  • Autores: Cabrero Ballarín, José Manuel
    Revista: CIC CENTRO INFORMATIVO DE LA CONSTRUCTION
    ISSN: 1576-1118 N° 585 2023 págs. 22 - 24
  • Autores: Dávila Migoya, Luis Diego (Autor de correspondencia); Cabrero Ballarín, José Manuel; Flores, O.
    Revista: BULLETIN OF EARTHQUAKE ENGINEERING
    ISSN: 1570-761X Vol.21 2023 págs. 739 - 766
    Resumen
    This study presents the analysis of the methodology of a seismic exposure model in Guatemala City. In the last years, progress in the investigation of regional seismic hazards has revealed the need to study the vulnerability of buildings in Central America. In addition, in recent years there have been earthquakes of moderate magnitude in Guatemala causing damage in some areas of the country. An accurate exposure model and updated threat scenarios are essential for a detailed vulnerability study. This exposure study for Guatemala City reveals the presence of structural typologies that are very vulnerable to earthquakes: adobe and simple masonry. Similarly, the study reveals the majority presence of reinforced masonry and the growing construction of reinforced concrete buildings. The characteristic of this model is the use of historical aerial photographs of Guatemala City to determine the relationship between constructive typologies. The lack of exposure studies in the country has prevented the creation of policies to reduce vulnerability to a catastrophe like the earthquake in 1976. The analysis and methodology presented in this study are the preliminary step in formulating seismic risk prevention and mitigation plans in Guatemala City; knowledge of the city's exposure contributes to making subsequent actions more effective. Based on the results obtained, matrices are proposed according to the age and material of the buildings for the typological classification of the structures.
  • Autores: Gil Rodríguez, Beatriz; Goñi Lasheras, Rufino; Fábregas, M.; et al.
    Revista: CE/PAPERS
    ISSN: 2509-7075 Vol.6 N° 3-4 2023 págs. 702 - 707
    Resumen
    The aim of this research is to provide an alternative for the conventional design of beam-to-column connections in building structures. The new design is performed by means of Structural Topological Optimization and executed by means of additive manufacturing with steel. Regarding the methodology, the joint that would be manufactured by conventional methods (i.e. welded and bolted plates) is modelled by means of finite elements in the first place. Its behavior is obtained, as well as the boundary conditions and the loads to be applied to the part that is going to be optimized. Subsequently, a solid part is defined and optimized by means of the optimization module TOSCA. Then, the complete joint is simulated with the optimized connection, and the behavior and the weight of the material used are compared with those of the conventional joint.Some modifications are made to improve some aspects of the design. Afterwards, the optimized joint is printed with steel S316L, the connection is as-sembled with the columns and beams, and it is tested. The experimental results are analyzed to be able to make the necessary adjustments both in the connection and in the design methodology.
  • Autores: Gracia Rodríguez, Javier; Gil Rodríguez, Beatriz; Bayo Pérez, Eduardo
    Revista: CE/PAPERS
    ISSN: 2509-7075 Vol.6 N° 3 - 4 2023 págs. 1381 - 1386
    Resumen
    This research deals with the axial-bending interaction in bolted steel beam to column connections along the strong axis of the column. In order to define the interaction curves, firstly, a series of tests of doubly symmetric bolted connections were carriedout in which two column sizes were considered, while the beam, end plate and bolts remained the same. These joints were tested under pure compression, as well as simultaneous bending and compression, and with different load levels. Afterwards, reduced finite element models including initial imperfections were made. These models are validated by means of the results obtained in the experimental program. The aim of the reduced model is to enlarge the range of studied loading combina-tions in terms of different percentages of axial load and bending moment. Finally, with the results obtained, a preliminary normalized interaction diagram for this type of joints wasdeduced.
  • Autores: Cabrero Ballarín, José Manuel
    Revista: MAS MADERA
    ISSN: 2695-4583 Vol.16 2022 págs. 44 - 50
  • Autores: Cabrero Ballarín, José Manuel
    Revista: CIC CENTRO INFORMATIVO DE LA CONSTRUCTION
    ISSN: 1576-1118 Vol.575 2022 págs. 62 - 64
  • Autores: Schenk, Martin; Hübner , Clara ; Cabrero Ballarín, José Manuel (Autor de correspondencia)
    Revista: CIVILENG
    ISSN: 2673-4109 Vol.3 N° 3 2022 págs. 610 - 629
  • Autores: Azinovic, B.; Cabrero Ballarín, José Manuel (Autor de correspondencia); Danielsson, H.; et al.
    Revista: ENGINEERING STRUCTURES
    ISSN: 0141-0296 Vol.266 2022 págs. 114556
    Resumen
    The performance of structural timber connections is of utmost importance since they control the global response of the building. A ductile failure mechanism on the global scale is desirable, especially in the design of structures in seismic areas, where dissipative components in which ductile failure modes need to be ensured are considered. Therefore, the knowledge of possible brittle failure modes of connections is crucial. The paper investigates the brittle failures of laterally loaded dowel-type connections in cross-laminated timber subjected to tensile load in a lap joint configuration through experimental investigations and analytical estimations. A set of 13 different test series has been performed with fully threaded self-tapping screws of 8 mm diameter and different lengths (40 to 100 mm) in cross-laminated timber composed of 3 or 5 layers (layer thickness range from 20 to 40 mm), giving rise to the activation of different brittle failure modes at different depths. Plug shear was among the most typically observed failure modes. A previously proposed model for the brittle capacity was applied to the tested connections at the characteristic level. As shown by the performed statistical analysis, the existing model is not reliable and mainly unconservative. A very low performance is observed (CCC = 0.299), but with a good correlation (c = 0.750) for the tests in the parallel direction. Further research work is required to improve the current model predictions and to gain a better understanding of the underlying resisting mechanisms.
  • Autores: Gil Rodríguez, Beatriz; Gracia Rodríguez, Javier (Autor de correspondencia); Bayo Pérez, Eduardo
    Revista: JOURNAL OF BUILDING ENGINEERING
    ISSN: 2352-7102 Vol.60 2022 págs. 105134
    Resumen
    A study of axial¿moment interactions of bolted connections with double extended end plates is presented in this paper. Six connections, subjected to pure compression and flexural compression were tested for this purpose. After the experimental campaign, finite element models were developed and calibrated to accurately reproduce the experimental results. The models included initial imperfections to capture the possible buckling failure modes in the column web and the beam flanges. Moreover, the models with and without initial imperfections were compared for different sizes of the imperfection. Finally, the results obtained from the experimental and the computational models provided sufficient and adequate information to construct an axial-moment interaction curve for the tested joints.
  • Autores: Araya, R. (Autor de correspondencia); Guillaumet, A.; do Valle, A.; et al.
    Revista: SUSTAINABILITY
    ISSN: 2071-1050 Vol.14 N° 3 2022
    Resumen
    This article presents the latest developments of the Spanish- and Portuguese-speaking countries of Europe and Latin America towards the development of sustainable timber construction. As most regions related to these countries have not traditionally employed timber as primary construction material, bringing the development of sustainable timber construction into fruition requires a wide range of actions, such as the elaboration of new educational programs, construction of demonstrative buildings, dissemination activities, settlement of public policies, elaboration of new construction codes, and the creation of new certification bodies. This article presents an overview of the state of the development of the different countries of Ibero-America, showing a very uneven development in the region. In addition to national analyses, a perception survey of 233 professionals from different countries was conducted, allowing for the identification of good practices, present gaps, and opportunities, as well as barriers for developing sustainable timber construction. It is concluded that in order to promote the development of the timber construction industry in the region, it is necessary to progress on regulatory, cultural, and material availability issues, where international experience, demonstrative buildings, and the implementation of public policies are crucial.
  • Autores: González Serna, Pablo (Autor de correspondencia); Cabrero Ballarín, José Manuel
    Revista: MAS MADERA
    ISSN: 2695-4583 N° 15 2021 págs. 40 - 46
  • Autores: Yurrita Lozano, Miguel; Moreno Zapata, Ezequiel; Basterrechea Arevalo, Mar Ainhoa; et al.
    Revista: MAS MADERA
    ISSN: 2695-4583 N° 15 2021 págs. 20 - 23
  • Autores: Gracia Rodríguez, Javier (Autor de correspondencia); Goñi Lasheras, Rufino; Bayo Pérez, Eduardo
    Revista: JOURNAL OF BUILDING ENGINEERING
    ISSN: 2352-7102 Vol.34 2021 págs. 101925
    Resumen
    The accurate simulation of steel structures requires a precise model of the joint behaviour. The methods proposed by the steel codes are based on either rotating springs or involved models of springs and rigid bars. In this article, a precise method to model the stiffness of 2D bolted steel connections is presented. First, the joint is accurately modelled using finite elements (FE). Then, the FE model is condensed to a cruciform element of 4 nodes (12 degrees of freedom) by constraining each side cross-section to a node located at its centre of gravity. Subsequently, forces are applied to each node to compute the flexibility matrix, which is then used to construct the stiffness matrix that is finally decomposed through singular value factorization. Following this procedure, a parametric study is conducted to build the training and validation sets of the metamodel. Kriging and Radial Basis Functions are chosen to metamodel and predict the stiffness matrices of the cases not included in the parametric study. Finally, steel structures are analysed with both complete finite elements and surrogate models, and the results are used to confirm the accuracy of the proposed method.
  • Autores: Yurrita Lozano, Miguel (Autor de correspondencia); Cabrero Ballarín, José Manuel
    Revista: ENGINEERING STRUCTURES
    ISSN: 0141-0296 Vol.242 2021 págs. 112496
    Resumen
    Timber connections can fail in a ductile or in a brittle way. A structural design that guarantees a ductile behaviour in case of failure is desirable, especially when facing extreme situations such as earthquakes. This work discusses how the European Yield Model (based on a ductile failure mechanism), included in many standards, combined with a reduction of the effective number of fasteners may provide too conservative results, which may inadvertently lead to risky situations in which a connection assumed to fail under a ductile mechanism would actually fail in a brittle manner. Within this paper, a proposal to improve the discrimination ability to correctly predict the failure mode is proposed.
  • Autores: Iraola Sáenz, Borja Iñaki (Autor de correspondencia); Cabrero Ballarín, José Manuel; Basterrechea Arevalo, Mar Ainhoa; et al.
    Revista: ENGINEERING STRUCTURES
    ISSN: 0141-0296 Vol.235 2021 págs. 112062
    Resumen
    Finite element models tend to overestimate the actual elastic response of structural timber connections. The paper shows how such overprediction relates to the modelling of the contact between fasteners and timber. The use of a control parameter called stiffness contact is proposed. After an experimental campaign, a method to determine it, based only on the geometry of a rectangular contact area, is proposed. The modeling adequacy is demonstrated by applying it to dowel embedment and moment resistant wood joint tests. The obtained results show good agreement with the experimental test series.
  • Autores: Quinteros-Mayne, R.; Arteaga Jordá, Ignacio (Autor de correspondencia); Goñi Lasheras, Rufino; et al.
    Revista: DYNA
    ISSN: 0012-7361 Vol.96 N° 5 2021 págs. 464 - 467
    Resumen
    Desde los inicios del análisis estructural de las estructuras de mampostería, se ha perseguido conocer su comportamiento teniendo en cuenta la influencia de los distintos elementos que lo conforman, evolucionando el análisis estructural de los arcos de fábrica hasta analizar el comportamiento fracto-mecánico de la mampostería. Este artículo presenta la adaptación del criterio de falla de Tsai- Hill para materiales ortótropos, aplicado al estudio de los arcos de mampostería. Ello se ha llevado acabo la adaptación en una subrutina VUSFLD de ABAQUS en lenguaje de programación Fortran. Esta subrutina se ha validado en atención a la falla del mortero, y se ha analizado el efecto del mortero en el análisis de un arco de mampostería. La subrutina implementada en un masomodelo permite observar la contribución del mismo a la capacidad portante de un arco.
  • Autores: Yurrita Lozano, Miguel (Autor de correspondencia); Cabrero Ballarín, José Manuel; Moreno Zapata, Ezequiel
    Revista: ENGINEERING STRUCTURES
    ISSN: 0141-0296 Vol.241 2021 págs. 112450
    Resumen
    Timber connections with steel dowel-type fasteners may fail in ductile or brittle ways. The design of this joints was traditionally focused on ductile failure, assuming that brittle failure could be avoided by means of geometrical limitations. However, recent studies demonstrated that these assumptions do not always guarantee ductile failure. A new design model for timber connections with small diameter dowel-type fasteners is provided in this paper. Its improved accuracy is demonstrated by analysing an extensive database of experimental tests and comparing its prediction accuracy to that of existing models.
  • Autores: Yurrita Lozano, Miguel (Autor de correspondencia); Cabrero Ballarín, José Manuel
    Revista: ENGINEERING STRUCTURES
    ISSN: 0141-0296 Vol.238 2021 págs. 111766
    Resumen
    Timber connections with small diameter fasteners that do not go through the whole timber member (such as screws or nails). may fail in brittle or ductile ways. In order to better understand their behaviour, an experimental campaign of tests of connections with small diameter fasteners loaded parallel-to-grain has been performed. The results and analysis of this work provide further information on the role of different parameters in the brittle failure. Existing models are benchmarked against these tests.
  • Autores: Basterrechea Arevalo, Mar Ainhoa; Cabrero Ballarín, José Manuel (Autor de correspondencia); Iraola Sáenz, Borja Iñaki; et al.
    Revista: ENGINEERING STRUCTURES
    ISSN: 0141-0296 Vol.247 2021 págs. 113122
    Resumen
    The development of accurate structural modelling techniques is required to promote the use of timber as a renewable alternative to other structural materials. Due to their remarkable influence on the global behaviour of a timber structure, an accurate description of the performance of structural connections is needed. Particularly in the case of moment transmitting beam-to-column connections with dowel-type fasteners, such properties are difficult to obtain experimentally. This paper develops a finite element (FE) model that simulates the behaviour of these connections under quasi-static loading, with a focus on the estimation of rotational stiffness and load distribution among the dowels. The model is validated against short-term laboratory tests. Resulting friction between timber members due to the installation procedure must be considered, as it greatly influences the rotational response. Besides, non-linear behaviour of timber and a softened contact parameter have been implemented, and their influence on the FE model validation process is demonstrated.
  • Autores: Cabrero Ballarín, José Manuel
    Revista: MAS MADERA
    ISSN: 2695-4583 N° 14 2020 págs. 34 - 40
  • Autores: Bayo Pérez, Eduardo; Gracia Rodríguez, Javier (Autor de correspondencia); Jönsson, Jeppe
    Revista: JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
    ISSN: 0143-974X Vol.168 2020 págs. 106001
  • Autores: Yurrita Lozano, Miguel (Autor de correspondencia); Cabrero Ballarín, José Manuel
    Revista: ENGINEERING STRUCTURES
    ISSN: 0141-0296 Vol.217 2020
    Resumen
    Timber connections may collapse in a brittle or in a ductile mode. The calculation models of timber joints are mainly focused on ductile failure mode, since it has been traditionally assumed that brittle failure was avoided by respecting a minimum spacing between fasteners. However, this assumption alone does not guarantee a ductile failure. This paper proposes a new design model dealing with brittle failure modes of timber connections with large diameter fasteners (those protruding the whole thickness of the timber member such as dowels or bolts). A comparison between the proposal and the existing models, using an extensive database of tests, is used to demonstrate the improved accuracy of the proposed design method.
  • Autores: Yurrita Lozano, Miguel (Autor de correspondencia); Cabrero Ballarín, José Manuel
    Revista: ENGINEERING STRUCTURES
    ISSN: 0141-0296 Vol.223 2020
  • Autores: Yurrita Lozano, Miguel (Autor de correspondencia); Cabrero Ballarín, José Manuel
    Revista: ENGINEERING STRUCTURES
    ISSN: 0141-0296 Vol.209 2020 págs. 109959
    Resumen
    The consideration of brittle failure of timber connections requires an adequate evaluation of the capacity of the involved failure planes. Their correct geometrical definition is therefore of utmost importance to obtain an accurate assessment of their capacity. This article presents a new approach to account for the effective thickness of the lateral planes of timber members in connections with large diameter fasteners loaded parallel-to-grain when the fasteners remain in its elastic range, which allows to consider the uneven load distribution along the fastener in a simple way. The proposal is based on a fitting of a beam on elastic foundation model and only requires the slenderness of the fastener as a parameter. It provides a both simple and accurate way to calculate the effective thickness of timber elements.
  • Autores: Gil Rodríguez, Beatriz (Autor de correspondencia); Goñi Lasheras, Rufino; Bayo Pérez, Eduardo
    Revista: ENGINEERING STRUCTURES
    ISSN: 0141-0296 Vol.220 2020
  • Autores: Cabrero Ballarín, José Manuel
    Revista: MAS MADERA
    ISSN: 2695-4583 Vol.13 2019 págs. 34 - 40
  • Autores: Cabrero Ballarín, José Manuel
    Revista: AITIM BOLETIN DE INFORMACION TECNICA
    ISSN: 0044-9261 N° 318 2019 págs. 4 - 9
  • Autores: Yurrita Lozano, Miguel (Autor de correspondencia); Cabrero Ballarín, José Manuel; Quenneville, Pierre
    Revista: CONSTRUCTION AND BUILDING MATERIALS
    ISSN: 0950-0618 Vol.216 2019 págs. 296 - 313
  • Autores: Gil Rodríguez, Beatriz (Autor de correspondencia); Goñi Lasheras, Rufino; Bijlaard, F.; et al.
    Revista: ENGINEERING STRUCTURES
    ISSN: 0141-0296 Vol.180 2019 págs. 586 - 602
    Resumen
    Torsional effects in joints need to be investigated in order to get a complete model of the joint and also to assess the real boundary conditions for the lateral torsional effects in the beams of structural frames. Phenomena such as: torsion, warping, lateral buckling, etc. are usually analysed assuming simplified boundary conditions, namely pinned or rigid, in frame analysis which can lead to erroneous and non-conservative results. With the aim of knowing the correct boundary conditions and real behaviour of the joints under torsion, an experimental program is carried out consisting of two tests of mayor axis doubled extended bolted end plate joints subjected to torsion about the axis along the length of the beam. These experimental results have allowed the validation of the finite element models carried out using the program Abaqus. Once the models are validated models, a parametric study is performed to assess the stiffness and resistance. This study also verifies that these joints behave in a semi-rigid way when compared with the torsional characteristics of the attached beam. Besides, the beam fails prior to the connection in most cases, and therefore, the joints can be assumed to behave as full-strength. Analytical expressions are proposed and checked with the FEM results proving that the proposed analytical formulae and the proposed mechanical model can predict the stiffness quite accurately, with an average error of 8.5%. Despite these joints can be classified as full-strength under torsion, an assessment of their resistance is done as well.
  • Autores: Quinteros-Mayne, R.; Arteaga Jordá, Ignacio (Autor de correspondencia); Goñi Lasheras, Rufino; et al.
    Revista: CONSTRUCTION AND BUILDING MATERIALS
    ISSN: 0950-0618 Vol.221 2019 págs. 614 - 626
  • Autores: Cabrero Ballarín, José Manuel; Honfi, Dániel (Autor de correspondencia); Jockwer, Robert; et al.
    Revista: WOOD MATERIAL SCIENCE AND ENGINEERING
    ISSN: 1748-0272 Vol.14 N° 5 2019 págs. 298 - 311
  • Autores: Loureiro, Alfonso (Autor de correspondencia); Lopez, Manuel; Reinosa, Jose Manuel; et al.
    Revista: JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
    ISSN: 0143-974X Vol.162 2019
    Resumen
    Beam-column steel joints usually have a semi-rigid behaviour, and this must be taken into account when carrying out a global analysis of the structure. Rotational springs at each side of the joint are commonly used to simulate this behaviour by means of the component method, but asymmetric welded beam-column steel joints are not included in the formulations of Eurocode 3. This research work proposes a new methodology to obtain the stiffness of welded asymmetrical beam-column steel joints, by means of a cruciform element of 4 nodes and 12 DOF, whose stiffness matrix is directly obtained by means of the meta-modelling of its elements using Kriging's method. The authors have carried out a wide study of 754 different asymmetric welded beam-column steel joints, whose finite element models have been analysed, and then the static condensation method has been used to obtain the equivalent condensed stiffness matrix (Kcond) of the cruciform element for the joints belonging to the training set. These matrices have been used to build the Kriging's model, and the rest of joints have been used for testing the method, which yields very good results. The use of meta-modelling methods to obtain the stiffness matrix of the joint is not only easier in its application than the component method, but it also leads to a formulation that is more accurate, and also takes into account the interactions between the different parts of the joint. (C) 2019 Elsevier Ltd. All rights reserved.
  • Autores: Bayo Pérez, Eduardo; Gracia Rodríguez, Javier
    Revista: CE/PAPERS
    ISSN: 2509-7075 Vol.3 N° 3-4 2019 págs. 331 - 336
  • Autores: Yurrita Lozano, Miguel; Cabrero Ballarín, José Manuel; Quenneville, Pierre
    Revista: NEW ZEALAND JOURNAL OF TIMBER DESIGN
    ISSN: 1171-8323 Vol.27 N° 3 2019 págs. 17 - 26
  • Autores: Villarino, JI ; Villarino, A (Autor de correspondencia); Arteaga Jordá, Ignacio; et al.
    Revista: ENERGIES
    ISSN: 1996-1073 Vol.12 N° 5 2019 págs. 870
  • Autores: Costa, R. (Autor de correspondencia); Valdez, J.; Oliveira, S.; et al.
    Revista: ENGINEERING STRUCTURES
    ISSN: 0141-0296 Vol.188 2019 págs. 277 - 289
    Resumen
    This work presents the experimental assessment of the joint behaviour of five steel beam-to-column end-plate joint configurations to assess (i) the effect of minor axis end plate joints in the behaviour of major axis end plate joints, and (ii) the interaction of two minor axis end plate joints. The experimental tests were performed with true size cruciform sub-frames specimens with boundary conditions intended to simulate unbraced frames. The sub-fames, with one to three beams, were loaded introducing multiple 3D stress states in the column unstiffened web, causing an interaction between the mechanical behaviour of two or three major and minor axis joints. The interactions were assessed in terms of the moment-rotation relations of joints, connections and column web. It was found that, for the slenderness of the column web tested, (i) the minor-axis joints have only a relevant influence on the stiffnesses of the major-axis joints and (ii) that, when two minor axis joints are present, their mutual interation increases both their stiffness and strength.
  • Autores: Bayo Pérez, Eduardo; Gracia Rodríguez, Javier
    Revista: JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
    ISSN: 0143-974X Vol.156 2019 págs. 242 - 251
  • Autores: Yurrita Lozano, Miguel (Autor de correspondencia); Cabrero Ballarín, José Manuel
    Revista: CONSTRUCTION AND BUILDING MATERIALS
    ISSN: 0950-0618 Vol.173 2018 págs. 238 - 250
  • Autores: Stepinac, Mislav; Cabrero Ballarín, José Manuel (Autor de correspondencia); Ranasinghe, Keerthi ; et al.
    Revista: ENGINEERING STRUCTURES
    ISSN: 0141-0296 Vol.170 2018 págs. 135 - 145
  • Autores: Gracia Rodríguez, Javier (Autor de correspondencia); Bayo Pérez, Eduardo
    Revista: ADVANCES IN ENGINEERING SOFTWARE
    ISSN: 0965-9978 Vol.119 2018 págs. 60 - 67
    Resumen
    The Internet has increased its potential exponentially since its inception. This progress has been possible due to new standards and technologies, which have also allowed the development of a new type of web applications that are fully integrated in web browsers. In addition, structural analysis has become a collaborative task in which different people have to share information and outputs of analysis programs. In this paper, an effective and user-friendly web application for the collaborative analysis of steel joints is presented. The latest cutting edge technologies in the Internet are used to address fundamental issues inherent in structural analysis software such as visualisation, interaction, and structural evaluation. Specifically, WebGL API, part of the HTML5 standard, is used to solve the visualisation issues of the proposed application. A rigorous analysis of simple and rigid structural joints is performed according to the standards and criteria set by the Eurocode 3.
  • Autores: Cabrero Ballarín, José Manuel (Autor de correspondencia); Yurrita Lozano, Miguel
    Revista: ENGINEERING STRUCTURES
    ISSN: 0141-0296 Vol.171 2018 págs. 895 - 910
    Resumen
    For safety reasons, ductile failure in timber connections with dowel-type fasteners is always recommended. It has usually been assumed that it can be achieved by fulfilling minimum spacing requirements between fasteners. However, recent works address the need to account for brittle failure modes (namely splitting, row-shear, and block and plug-shear) in connections loaded parallel-to-the-grain in an explicit manner, in order to evaluate them and achieve the desired ductility. This article describes the brittle failure modes and reviews the existing calculation models proposed by several authors ¿ some of them included in standards. Finally, the performance of these models is assessed against an extensive database of tests gathered from the literature following a comprehensive methodology.
  • Autores: Echeverria Trueba, Juan Bautista; Fernández-Vigil Iglesias, María (Autor de correspondencia); Gil Rodríguez, Beatriz
    Revista: INFORMES DE LA CONSTRUCCION
    ISSN: 0020-0883 Vol.70 N° 550 2018 págs. e258 - e258
    Resumen
    Dimensioning the stairs in case of fire is amongst the most important features in today architecture design. A bigger complexity of the buildings (mixed uses, crowded spaces, occupants with disabilities, tall structures, etc.) is added to new social habits, and the activities traditionally placed on the lowest parts of the buildings tend to occupy the upper floors. This article shows that the prescriptive calculations for the dimensioning of protected stairs are unable to face this challenge because they are based on simplified models, only valid for conventional buildings and distributions. It analizes the Spanish Technical Building Code, showing its weakness, and introduces the necessary performance-based design concepts to understand the problem. It concludes that any complex design must be addressed studying the real movement o f the occupants, that can be modelled with the use of computational tools.
  • Autores: Cabrero Ballarín, José Manuel
    Revista: MAS MADERA
    ISSN: 2695-4583 Vol.12 2018 págs. 32 - 37
  • Autores: Gil Rodríguez, Beatriz (Autor de correspondencia); Goñi Lasheras, Rufino; Bayo Pérez, Eduardo
    Revista: JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
    ISSN: 0143-974X Vol.140 2018 págs. 208 - 221
  • Autores: Cabrero Ballarín, José Manuel; Yurrita Lozano, Miguel; Basterrechea Arevalo, Mar Ainhoa; et al.
    Libro: 2º Forum de Construcción con Madera 2022
    ISSN: 978-3-906226-44-6 2022 págs. 107 - 117
  • Autores: Agusti de Ciurana, Josep; Cabrero Ballarín, José Manuel
    Libro: Manual gráfico de construcción, instalaciones y estructuras v.2022
    ISSN: 978-84-313-3776-6 2022 págs. 88 - 95
  • Autores: Cabrero Ballarín, José Manuel
    Libro: Innovación Docente e Investigación en Ciencias, Ingeniería y Arquitectura
    ISSN: 978-84-1324-559-1 2019 págs. 83 - 92
  • Autores: Cabrero Ballarín, José Manuel; Stepinac, Mislav; Ranasinghe, Keerthi; et al.
    Libro: Design of Connections in Timber Structures: A state-of-the-art report by COST Action FP 1402 / WG3
    ISSN: 978-3-8440-6144-4 2018 págs. 3 - 18
  • Autores: Cabrero Ballarín, José Manuel; Yurrita Lozano, Miguel
    Libro: Design of connections in timber structures
    ISSN: 978-3-8440-6144-4 2018 págs. 127 - 142
  • Autores: Cabrero Ballarín, José Manuel; Iraola Sáenz, Borja Iñaki; Yurrita Lozano, Miguel
    Libro: Handbook of Materials Failure Analysis With Case Studies From the Construction Industries
    ISSN: 9780081019283 2018 págs. 123 - 152
  • Autores: Ranasinghe, Keerthi; Cabrero Ballarín, José Manuel; Stepinac, Mislav; et al.
    Libro: Design of Connections in Timber Structures: A state-of-the-art report by COST Action FP 1402 / WG3
    ISSN: 9783844061444 2018 págs. 19 - 23
  • Autores: Ranasinghe, K.; Cabrero Ballarín, José Manuel; Leijten, A. (Corrector)
    ISSN: 978-1-909594-87-6 2021

Proyectos desde 2018

  • Título: Diseño y caracterización de elementos constructivos prefabricados de hormigón con áridos reciclados
    Código de expediente: 0011-4387-2023-000003
    Investigador principal: GERMAN RAMOS RUIZ.
    Financiador: GOBIERNO DE NAVARRA
    Convocatoria: 2023 GN Subvención del Fondo de Residuos
    Fecha de inicio: 01-01-2024
    Fecha fin: 31-12-2025
    Importe concedido: 91.822,50€
    Otros fondos: -
  • Título: BOSQUES DEL SIGLO XXI, EMPODERADOS, INNOVADORES Y CON EMPRENDIMIENTO
    Código de expediente: BF217
    Investigador principal: JOSE MANUEL CABRERO BALLARIN.
    Financiador: FUNDACION BIODIVERSIDAD
    Convocatoria: 2023 FD Biodiversidad. Proyectos para la promoción de la bioeconomía y la contribución a la transición ecológica
    Fecha de inicio: 01-01-2024
    Fecha fin: 31-12-2025
    Importe concedido: 118.361,00€
    Otros fondos: Fondos MRR
  • Título: Desarrollar proyectos para Escuela de Arquitectura
    Código de expediente: 0011-4001-2022-000044
    Investigador principal: BEATRIZ ARACELI GIL RODRIGUEZ.
    Financiador: GOBIERNO DE NAVARRA
    Convocatoria: 2021 GN Investigo
    Fecha de inicio: 10-11-2022
    Fecha fin: 09-11-2023
    Importe concedido: 22.405,94€
    Otros fondos: Fondos MRR
  • Título: Análisis basado en metamodelos para uniones de acero diseñadas mediante optimización topológica aplicada a la fabricación aditiva.
    Código de expediente: PID2020-113895GB-C32
    Investigador principal: BEATRIZ ARACELI GIL RODRIGUEZ, RUFINO GOÑI LASHERAS.
    Financiador: AGENCIA ESTATAL DE INVESTIGACION
    Convocatoria: 2020 AEI PROYECTOS I+D+i (incluye Generación del conocimiento y Retos investigación)
    Fecha de inicio: 01-09-2021
    Fecha fin: 31-08-2024
    Importe concedido: 56.628,00€
    Otros fondos: -
  • Título: Hacia un análisis fiable y eficiente de las uniones de madera: ensayos de material e interaccón, y modelado numérico.
    Código de expediente: PID2020-118569GB-C21
    Investigador principal: JOSE MANUEL CABRERO BALLARIN.
    Financiador: AGENCIA ESTATAL DE INVESTIGACION
    Convocatoria: 2020 AEI PROYECTOS I+D+i (incluye Generación del conocimiento y Retos investigación)
    Fecha de inicio: 01-09-2021
    Fecha fin: 31-08-2025
    Importe concedido: 132.495,00€
    Otros fondos: -
  • Título: Ayuda movilidad Eduardo Bayo (Estancia en Dinamarca)
    Código de expediente: PRX18/00094
    Investigador principal: EDUARDO BAYO PEREZ.
    Financiador: MINISTERIO DE EDUCACION , CULTURA Y DEPORTE
    Convocatoria: 2018 MECD SENIOR
    Fecha de inicio: 01-04-2019
    Fecha fin: 30-06-2019
    Importe concedido: 10.188,00€
    Otros fondos: -
  • Título: Soluciones Innovadoras para Estructuras de Madera Contralaminada (Innovative Solutions for Cross Laminated Structures)
    Código de expediente: PCI2019-103591
    Investigador principal: JOSE MANUEL CABRERO BALLARIN.
    Financiador: MINISTERIO DE CIENCIA, INNOVACIÓN Y UNIVERSIDADES
    Convocatoria: 2019 MINECO APCIN
    Fecha de inicio: 01-03-2019
    Fecha fin: 31-10-2022
    Importe concedido: 109.000,00€
    Otros fondos: Fondos FEDER
  • Título: Nueva metodología para la caracterización directa y automática de uniones 2D viga-pilar, en acero y madera, mediante metamodelos especializados basados en modos de deformación.
    Código de expediente: BIA2016-80358-C2-1-P
    Investigador principal: EDUARDO BAYO PEREZ.
    Financiador: MINISTERIO DE CIENCIA, INNOVACIÓN Y UNIVERSIDADES
    Convocatoria: 2016 MINECO EXCELENCIA. PROYECTOS I+D
    Fecha de inicio: 30-12-2016
    Fecha fin: 29-09-2020
    Importe concedido: 77.440,00€
    Otros fondos: Fondos FEDER