Journal ArticleDOI
Fibre reinforced concrete: new design perspectives
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TLDR
In this article, the main concepts behind the structural rules for Fibre Reinforced Concrete structural design are briefly explained, and a New fib Model Code that aims to update the previous CEB-FIP Model Code 90, published in 1993, is presented.Abstract:
Although the use of Fibre Reinforced Concrete (FRC) for structural applications is continuously increasing, it is still limited with respect to its potentials, mainly due to the lack of International Building Codes for FRC structural elements. Within fib (Federation Internationale du Beton), the Special Activity Group 5 is preparing a New fib Model Code that aims to update the previous CEB-FIP Model Code 90, published in 1993, that can be considered as the reference document for Eurocode 2. The New Model Code includes several innovations and addresses among other topics, new materials for structural design. In this respect, FRC will be introduced. The Technical Groups fib TG 8.3 “Fibre reinforced concrete” and fib TG 8.6 “Ultra high performance FRC” are preparing some sections of the New Model Code, including regular and high performance FRC. This paper aims to briefly explain the main concepts behind the structural rules for FRC structural design.read more
Citations
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Journal ArticleDOI
Use of fiber reinforced concrete in bridges – Metrorrey Line 2 case study
TL;DR: In this paper , the structural applicability and performance of fiber reinforced concrete (FRC) for different bridge elements and within a design framework is presented. And the case study aims to assess the structural performance that FRC can deliver within bridge geometries, loads, and specific conditions.
Journal ArticleDOI
Mechanical Behavior of Steel–HFRC Composite Girders
Journal ArticleDOI
Análise comparativa entre o valor de carga máxima e carga de fissuração em um crfa / comparative analysis between the maximum load value and cracking load in a crfa
TL;DR: In this article, a study is presented related to the relationship between the maximum load and the crack load of concrete reinforced with steel fibers, through the three point bending test standardized by EN 14651 (2007).
Proceedings ArticleDOI
Nuevos hormigones para premoldeados en Uruguay
Gemma Paula Rodriguez de Sensale,Iliana Rodríguez Viacava,Rosana Rolfi Netto,Luis Segura Castillo,María Esther Fernández +4 more
TL;DR: Agarwal et al. as discussed by the authors agradecen a la Agencia Nacional de Investigacion e Innovación (ANII) el apoyo financiero para la realización del Proyecto, a la Comision Sectorial de Investigación Cientifica (CSIC) por posibilitar la presentación de trabajo in this Congreso, and a Hormigones Artigas por la realization of los hormigones.
Journal ArticleDOI
Electrical resistivity measurements to determine the steel fiber content of concrete
TL;DR: In this paper, the electrical conductivity of steel fiber reinforced concrete is measured using a two-electrode experimental set-up and a new model is developed to quantify the fiber content of the examined cubes.
References
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Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements
TL;DR: In this article, fracture mechanics is introduced into finite element analysis by means of a model where stresses are assumed to act across a crack as long as it is narrowly opened, which may be regarded as a way of expressing the energy adsorption in the energy balance approach.
Journal ArticleDOI
Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements
TL;DR: In this article, fracture mechanics is introduced into finite element analysis by means of a model where stresses are assumed to act across a crack as long as it is narrowly opened, which may be regarded as a way of expressing the energy adsorption in the energy balance approach.
Journal ArticleDOI
Crack band theory for fracture of concrete
Zdeněk P. Bažant,Byung H. Oh +1 more
TL;DR: In this article, a fracture theory for a heterogenous aggregate material which exhibits a gradual strain-softening due to microcracking and contains aggregate pieces that are not necessarily small compared to structural dimensions is developed.
Journal ArticleDOI
Nonlocal Continuum Damage, Localization Instability and Convergence
TL;DR: In this paper, a nonlocal damage formulation was extended to a more general form in which the strain remains local while any variable that controls strain-softening is nonlocal, and it was shown that the energy dissipation and damage cannot localize into regions of vanishing volume.
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