Bond and failure mechanisms of textile reinforced concrete (TRC) under uniaxial tensile loading

Häußler‐Combe, Ulrich; Hartig, Jens

doi:10.1016/j.cemconcomp.2006.12.012

Cited by 105 publications

(63 citation statements)

References 6 publications

(6 reference statements)

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“…The indirect connection leads, in our opinion, to a more realistic description of the load distribution especially after matrix cracking. In [7], a more general description of the discretisation of the reinforcement yarn than two reinforcement segments is presented. In the following, we will briefly revise this approach.…”

Section: Geometrymentioning

confidence: 99%

“…The geometrical arrangement of the bar elements and the bond elements was introduced in principle in [7], where the reinforcement was only divided into two segments, one for the fill-in zone and one for the core zone. A similar approach is used by [12,13].…”

Section: Geometrymentioning

confidence: 99%

“…In this contribution, we enhance a model on the microscopic scale, which was, from a more geometrical point of view, recently presented in [7]. It can be classified as a reduced two-dimensional model because only the longitudinal (loading) direction is discretised over the whole specimen length.…”

Section: Introductionmentioning

confidence: 99%

“…The main advancements compared to [7] are an enhanced bond description, which includes the degradation of the bond after reaching a certain maximum value of bond stress and a finer resolution of the reinforcement in the transverse direction. Thus, we are able to study the influence of a number of bond properties, as for instance the bond strength or the degree of penetration of the reinforcement with matrix, on the structural behaviour of TRC under uniaxial tensile loading.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Influence of bond properties on the tensile behaviour of Textile Reinforced Concrete

Hartig

Häußler‐Combe

Schicktanz

2008

Cement and Concrete Composites

136

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Section: Geometrymentioning

confidence: 99%

Section: Geometrymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of bond properties on the tensile behaviour of Textile Reinforced Concrete

Hartig

Häußler‐Combe

Schicktanz

2008

Cement and Concrete Composites

136

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“…Furthermore, experimental investigations on real-scale flexural elements are very few [4]. Some examples of studies on composites with cementitious matrix can be found in [5][6][7][8][9], whereas recent experimental applications of mortars for rehabilitating existing structural elements developed at the University of Padova can be found in [10,11]. This paper describes the experimental investigation on four precast pre-stressed TT beams taken from an existing industrial building where they were used as roof elements.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on existing precast prc elements strengthened with cementitious composites

2017

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RESUMENExisten varias investigaciones experimentales sobre el polímero reforzado con fibra (PRF), con el objetivo de comprender su comportamiento cuando se aplican como refuerzo de elementos de hormigón armado, pero hay muy pocos datos disponibles sobre el reforzamiento de elementos a escala real con materiales compuestos cementicios. En particular, las formulaciones de código de diseño son escasas o inexistentes. En este estudio se investigó el comportamiento de cuatro vigas TT pretensadas tomados de un edificio industrial existente. Uno de ellos se consideró como viga TT no reforzada de control, mientras que los otros se reforzaron con diferentes técnicas, concretamente con laminados FRP (pegados con resina epóxica), fibras de carbono con matriz cementicia y fibras de acero con matriz cementicia. Cada material involucrado en este estudio también se caracterizó mecánicamente para obtener las principales propiedades físicas. Se obtuvieron especímenes adecuados de la viga TT existente para caracterizar el hormigón y las barras de acero de refuerzo. ABSTRACTA number of experimental investigations on fibre reinforced polymer (FRP), with the aim of understanding their behaviour when applied as strengthening of reinforced concrete elements, are available in the literature but very few information is available on strengthening real-scale elements with cementitious composites. In particular design code formulations are scanty or non-existent. In this study the behaviour of four precast pre-stressed TT beams taken from an existing industrial building was investigated. One of them was considered as control unstrengthened TT beam, whereas the others were strengthened with different techniques, namely with FRP laminates (glued with epoxy resin), carbon fibres with cementitious matrix and steel fibres with cementitious matrix. Each material involved in this study was also mechanically characterized to obtain the main physical properties. Adequate specimens were obtained from the existing TT beam to characterize the concrete and the reinforcing steel bars.

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Non‐linear Finite Element Analysis

Borst

Crisfield

Remmers

et al. 2012

Non‐Linear Finite Element Analysis of Solids and Structures

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Reinforced Concrete (RC) has become one of the most commonly used materials up to now. Despite their efficiency, RC structures have posed some disadvantages, primarily related to durability and corrosion of steel reinforcement. Just over a decade ago, however, a new concept has been developed with the idea of replacing the steel reinforcement with alkali-resistant textile fibres resulting in a new composite material called Textile Reinforced Concrete (TRC). This new construction material offers important advantages such as resistance to corrosion and thinner and lighter structures. An application which has become of great interest as of late is the use of TRC in rehabilitation, such that it can strengthen different structural elements like slabs, beams or columns.The main purpose of this report is to model and analyse the effects of strengthening RC structures using TRC layers, particularly focusing on a TRC strengthened RC slab. The main method used in this project was numerical modelling based on the Finite Element Method (FEM). The finite element software DIANA FX+ was utilized to develop a 2-D non-linear model of a TRC strengthened RC slab. The verification of the developed model was accomplished by means of experimental and numerical results from a previous study.The results showed that the RC slabs strengthened with TRC present significant increase in the load-bearing capacity compared to the unstrengthened RC slabs. Furthermore, for a similar load level, the final deflection was reduced in the case of strengthened slabs. The hand calculations of the ultimate load were consistent with the numerical results. This project has shown the efficiency of strengthening RC slabs with TRC layers. The modelling of the bond-slip relation between concrete and reinforcement using interface elements lead to a parametric study of this behaviour. This showed the importance of implementing interface elements instead of embedded reinforcement with full interaction in order to achieve realistic results. Further analysis of bidirectional slabs using 3D modelling is recommended for a better representation of the bonding behaviour between the textile reinforcement and the concrete.

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Bond and failure mechanisms of textile reinforced concrete (TRC) under uniaxial tensile loading

Cited by 105 publications

References 6 publications

Influence of bond properties on the tensile behaviour of Textile Reinforced Concrete

Influence of bond properties on the tensile behaviour of Textile Reinforced Concrete

Experimental investigation on existing precast prc elements strengthened with cementitious composites

Non‐linear Finite Element Analysis

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