Exploració per autor "Oller Ibars, Eva"
Ara es mostren els items 29-48 de 61
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Life-cycle cost of CFRP and steel prestressed concrete elements
(2023)
Text en actes de congrés
Accés obertCarbon 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
(2023)
Text en actes de congrés
Accés restringit per política de l'editorialThough 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
(Wiley, 2022-02)
Article
Accés obertCorrosion 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
(2018-05)
Article
Accés restringit per política de l'editorialIn 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
(2017-09)
Article
Accés restringit per política de l'editorialIt 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
(Universitat Politècnica de Catalunya, 2005-09-10)
Tesi
Accés obertLa 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
(2022)
Text en actes de congrés
Accés obertDue 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
(2021-04)
Article
Accés obertLos 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
(Elsevier, 2019-05)
Article
Accés obertThe 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
(2015-10)
Article
Accés obertA 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
(2017)
Text en actes de congrés
Accés restringit per política de l'editorialThe 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
(Wiley (John Wiley & Sons), 2021-04)
Article
Accés obertSome 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)
(2011)
Text en actes de congrés
Accés restringit per política de l'editorialEn 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)
(Universitat Politècnica de Catalunya. Escola Superior d'Enginyers de Camins Canals i Ports de Barcelona, 2011-11-15)
Comunicació de congrés
Accés obertEl 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
(2017)
Text en actes de congrés
Accés restringit per política de l'editorialSe 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 ... -
Resistencia a punzonamiento de losas de hormigón armado sometidas a tracciones en su plano
(2022)
Text en actes de congrés
Accés obertSe presentan los resultados de un estudio teórico y experimental de la resistencia a punzonamiento de placas sometidas a tracciones en su plano. Se han ensayado 10 losas de 1,65 x 1,65 x 0,12 metros, con dos cuantías ... -
Shear design and assessment of reinforced and prestressed concrete beams based on a mechanical model
(2016-10)
Article
Accés obertSafe and economical design and assessment of reinforced (RC) and prestressed concrete (PC) beams requires the availability of accurate but simple formulations which adequately capture the structural response. In this paper, ... -
Shear design of reinforced concrete beams with FRP longitudinal and transverse reinforcement
(Elsevier, 2015-06)
Article
Accés obertThe shear resisting mechanisms of reinforced concrete (RC) beams with longitudinal and transverse FRP reinforcement can be affected by the mechanical properties of the FRP rebars. This paper presents a mechanical model for ... -
Shear fatigue strength of reinforced concrete members without transverse reinforcement according to the compression chord capacity model
(Elsevier, 2020-05)
Article
Accés obertAlthough the shear fatigue behaviour of elements without shear reinforcement has been studied for a while, there is still a need for a simple mechanical model that evaluates the shear fatigue strength. The Compression Chord ... -
Shear strain influence in the service response of FRP reinforced concrete beams
(2014-11-13)
Article
Accés restringit per política de l'editorialShear strains can become significant in the response of RC beams, especially in the case with longitudinal FRP reinforcement. The effect of the shear strains is studied in this paper through the numerical results of a 1D ...
