Ara es mostren els items 24-43 de 61

    • Influence of the flanges width and thickness on the shear strength of reinforced concrete beams with T-shaped cross section 

      Ayensa Pardo, Alberto; Oller Ibars, Eva; Beltrán, Beatriz; Ibarz Montaner, Elena; Marí Bernat, Antonio Ricardo; Gracia Villa, Luis (Elsevier, 2019-06)
      Article
      Accés obert
      Shear design of reinforced concrete beams with T section considers only the contribution of the web, mainly provided by aggregate interlock. However, as the load increases and large web crack openings take place, aggregate ...
    • Influence of the longitudinal reinforcement on the shear strength of one-way concrete slabs 

      Gurutzeaga Zubillaga, Mikel; Oller Ibars, Eva; Ribas González, Carlos Rodrigo; Cladera Bohigas, Antoni; Marí Bernat, Antonio Ricardo (2015-08)
      Article
      Accés obert
      The shear strength of one-way slabs is studied in this paper via an experimental program performed by the authors and the analysis of a shear test database. The experimental program, in which six slabs and three beams ...
    • Influencia del contenido de finos en la respuesta estructural a flexión y cortante de vigas de hormigón armado 

      Santos Ferreira, Denise Carina; Oller Ibars, Eva; Bairán García, Jesús Miguel; Marí Bernat, Antonio Ricardo; Carrascon, Sergio (Consejo Superior de Investigaciones Científicas (CSIC), 2015)
      Article
      Accés obert
      Este artículo presenta un estudio experimental sobre el comportamiento a flexión y cortante de vigas de hormigón armado con un contenido de finos (275 kg/m3) superior al límite permitido por la Instrucción EHE-08 (175 ...
    • Integrating sustainability and social commitment transversal competence across civil engineering curricula through case studies and a common evaluation rubric 

      Pérez Foguet, Agustí; Requejo Castro, David; Etxeberria Larrañaga, Miren; Garola Crespo, Àlvar; Oller Ibars, Eva; Giné Garriga, Ricard (International Centre for Numerical Methods in Engineering (CIMNE), 2018)
      Text en actes de congrés
      Accés obert
      The Civil Engineering School of Barcelona has a long tradition applying own experiences from international co-operation for development projects to teaching and learning activities. The continuous work carried out in this ...
    • Investigación e innovación en puentes y torres eólicas prefabricadas de hormigón pretensado 

      Marí Bernat, Antonio Ricardo; Bairán García, Jesús Miguel; Oller Ibars, Eva; Duarte Gómez, Noemí (Universitat Politècnica de Catalunya. Escola Tècnica Superior d'Enginyers de Camins Canals i Ports de Barcelona, 2011-11-15)
      Comunicació de congrés
      Accés obert
      Se presenta la investigación teórica y experimental realizada por los autores durante los últimos años en colaboración con empresas de prefabricación y de aerogeneradores, que ha dado lugar a nuevos tipos estructurales ...
    • Life-cycle cost of CFRP and steel prestressed concrete elements 

      Bairán García, Jesús Miguel; Murcia Delso, Juan; Duarte Gómez, Noemí; Oller Ibars, Eva; Marí Bernat, Antonio Ricardo (2023)
      Text en actes de congrés
      Accés obert
      Carbon steel reinforcement is vulnerable to corrosion, degrading the structure with time, and has large economic implications for aging infrastructures. CFRP is an alternative in reinforced and prestressed concrete, not ...
    • Model code approach to the SLS design of FRP reinforced concrete elements 

      Torres Llinàs, Lluís; Guadagnini, Maurizio; Barris Peña, Cristina; Matthys, Stijn; Oller Ibars, Eva; Baena Muñoz, Marta (2023)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Though research on FRP reinforcement has led to the development of several design recommendations over the past 25 years, recent efforts have focused on the development of unified design procedures and models that can ...
    • Modeling serviceability performance and ultimate capacity of corroded reinforced and prestressed concrete structures 

      Marí Bernat, Antonio Ricardo; Bairán García, Jesús Miguel; Oller Ibars, Eva; Duarte Gómez, Noemí (Wiley, 2022-02)
      Article
      Accés obert
      Corrosion reduces the area of reinforcement steel, affects its mechanical properties, the bond properties, and produces concrete cracking. Thus, reduction of the bearing capacity and stiffness, increments of deflections ...
    • Numerical analysis of reinforced concrete beams strengthened in shear by externally bonded (EB) fibre reinforced polymer (FRP) sheets 

      Oller Ibars, Eva; Santos Ferreira, Denise Carina; Marí Bernat, Antonio Ricardo; Bairán García, Jesús Miguel (2018-05)
      Article
      Accés restringit per política de l'editorial
      In this paper, a fibre beam model previously developed by the authors for the nonlinear analysis of strengthened elements, including the effects of shear, is used to predict the response of reinforced concrete (RC) beams ...
    • One-way shear design method based on a multi-action model 

      Cladera Bohigas, Antoni; Marí Bernat, Antonio Ricardo; Bairán García, Jesús Miguel; Oller Ibars, Eva; Ribas González, Carlos Rodrigo (2017-09)
      Article
      Accés restringit per política de l'editorial
      It is widely known that the shear strength of a reinforced concrete (RC) or prestressed concrete (PC) beam results from the interaction of different resisting actions. Thus, available simplified shear models emphasize ...
    • Peeling failure in beams strengthened by plate bonding. A design proposal 

      Oller Ibars, Eva (Universitat Politècnica de Catalunya, 2005-09-10)
      Tesi
      Accés obert
      La necesidad de refuerzo estructural en una infraestructura existente puede venir motivada por la aparición de nuevos condicionantes de uso o por la degradación de los materiales. Desde finales de los años sesenta, la ...
    • Performance-based slenderness limits for deflections and reinforcement stresses control in RC beams 

      Marí Bernat, Antonio Ricardo; Torres Llinàs, Lluís; Oller Ibars, Eva; Barris Peña, Cristina (2022)
      Text en actes de congrés
      Accés obert
      Due to the complex deformational behavior of cracked RC members, an effective way to ensure the fulfilment of the SLS is to limit the slenderness ratio l/d of the element. In this study, the deformation slenderness limit ...
    • Performance-based slenderness limits for deformations and reinforcement stresses control in reinforced concrete beams 

      Marí Bernat, Antonio Ricardo; Torres Llinàs, Lluís; Oller Ibars, Eva; Barris Peña, Cristina (2021-04)
      Article
      Accés obert
      Los procedimientos actuales de dimensionamiento a flexión de elementos de hormigón armado, basados en la comprobación de estado límite último (ELU), proporcionan suficiente resistencia para soportar las cargas de diseño ...
    • Performance-based slenderness limits for deformations and crack control of reinforced concrete flexural members 

      Marí Bernat, Antonio Ricardo; Torres Llinàs, Lluís; Oller Ibars, Eva; Barris Peña, Cristina (Elsevier, 2019-05)
      Article
      Accés obert
      The use of high strength materials allows flexural members to resist the design loads or to cover long spans with a reduced depth. However, the strict cross section dimensions and reinforcement amount required in ULS are ...
    • Predicting the shear–flexural strength of slender reinforced concrete T and I shaped beams 

      Cladera Bohigas, Antoni; Marí Bernat, Antonio Ricardo; Ribas González, Carlos Rodrigo; Bairán García, Jesús Miguel; Oller Ibars, Eva (2015-10)
      Article
      Accés obert
      A mechanical model previously developed by the authors for the prediction of the shear flexural strength of slender reinforced concrete beams with rectangular cross-section with or without stirrups has been extended to ...
    • Punching-shear in concrete slabs reinforced with FRP rebars without transverse reinforcement: comparative study of analytical models 

      Oller Ibars, Eva; Marí Bernat, Antonio Ricardo; GONZALEZ RODRIGUEZ, JOSEP JAUME (2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The punching-shear strength of slabs reinforced with FRP bars without transverse reinforcement is a complex phenomenon. The main difference with the conventional reinforced concrete is that the passive reinforcement has a ...
    • Punching-shear strength of reinforced concrete slabs subjected to unidirectional in-plane tensile forces 

      Fernández Sánchez, Pablo Gonzalo; Marí Bernat, Antonio Ricardo; Oller Ibars, Eva (Wiley (John Wiley & Sons), 2021-04)
      Article
      Accés obert
      Some reinforced concrete slabs are subjected simultaneously to concentrated loads and unidirectional in‐plane tensile forces. This the case of the top slab of a box girder bridge where hogging bending moments take place ...
    • Refuerzo a cortante de vigas de hormigón armado, mediante laminados de polímeros reforzados con fibras (FRP) 

      Pujol Sánchez, Mireia; Bairán García, Jesús Miguel; Oller Ibars, Eva; Marí Bernat, Antonio Ricardo (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      En la actualidad, la aplicación de laminados de polímeros reforzados con fibras (FRP) en el campo de la reparación y del refuerzo de estructuras de hormigón resulta cada vez más frecuente. Si bien los mecanismos de rotura ...
    • Refuerzo de estructuras de hormigón armado con laminados de fibra de carbono (CFRP) 

      Oller Ibars, Eva; Marí Bernat, Antonio Ricardo; Bairán García, Jesús Miguel (Universitat Politècnica de Catalunya. Escola Superior d'Enginyers de Camins Canals i Ports de Barcelona, 2011-11-15)
      Comunicació de congrés
      Accés obert
      El uso de los materiales compuestos en el campo del refuerzo estructural ha experimentado un notable crecimiento en los últimos años gracias a sus elevadas relaciones resistencia/peso y rigidez/peso, que permiten reducir ...
    • Resistencia a cortante de elementos de hormigón parcialmente pretensado 

      Celada Blesa, Ulric; Duarte Gómez, Noemí; Bairán García, Jesús Miguel; Oller Ibars, Eva; Marí Bernat, Antonio Ricardo (2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Se presenta una campaña experimental de elementos de hormigón parcialmente pretensado y una formulación a cortante basada en modelos mecánicos. Se compararán los resultados experimentales con diferentes normativas y se ...