A numerical insight into the response of masonry reinforced by FRP strips. The case of perfect adhesion

Fedele, Roberto; Milani, Gabriele

doi:10.1016/j.compstruct.2010.03.014

Cited by 62 publications

(36 citation statements)

References 12 publications

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“…The numerical analysis of this problem is also quite complex and only a limited number of scientific works can be found on this specific subject; they can be roughly divided in two main categories [22] facing the problem of bond between FRP and masonry substrate with either a zero-thickness interface element [21,23], or a specific layer representing the adhesive [8,24]. In the first case, all the non-linearity is concentrated in the interface while in the second case each material has its own specific behavior.…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental study of GFRP-masonry interface behavior: Bond evolution and role of the mortar layers

Mazzotti¹,

Murgo²

2015

Composites Part B: Engineering

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Section: Introductionmentioning

confidence: 99%

Numerical and experimental study of GFRP-masonry interface behavior: Bond evolution and role of the mortar layers

Mazzotti¹,

Murgo²

2015

Composites Part B: Engineering

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“…Specimen 6 (together with specimen 3) was quite enough glued (see Fig. 4) and the failure occurred predominantly in very first layer of masonry unit [3]. This layer has improved properties thanks to glue penetration into porous system.…”

Section: Discussion Of the Obtained Resultsmentioning

confidence: 99%

Solid Burnt Bricks’ Tensile Strength

Maroušková

Kubát

2017

APP

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Abstract. This paper deals with experimental testing of solid burnt bricks and mortar in pure (axial) tension. The obtained working diagrams will be further use for a detailed numerical analysis of whole brick masonry column under concentric compressive load. Failure mechanism of compressed brick masonry column is characterized by the appearance and development of vertical tensile cracks in masonry units (bricks) passing in the direction of principal stresses and is accompanied by progressive growth of horizontal deformations. These cracks are caused by contraction and interaction between two materials with different mechanical characteristics (brick and mortar). The aim of this paper is more precisely describe the response of quasi-brittle materials to uniaxial loading in tension (for now only the results from three point bending test are available). For these reasons, bricks and mortar tensile behavior is experimentally tested and the obtained results are discussed.

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“…However, only more recently, experimental and numerical researches have been conducted about the usage of the FRP for the structural rehabilitation and strengthening of masonry walls. Very good results have been reported, what contribute to the success on this approach [4][5][6][7]. Nonetheless, only few contributions refer to aspects concerning to the bonding and debonding behaviour between the masonry elements and the strengthening system.…”

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confidence: 96%

Influence of fibre reinforced polymers in the rehabilitation of damaged masonry wallettes

Chagas

Moita

2015

Appl Adhes Sci

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In the past decade, the interest in repair and retrofitting of existing structures and rehabilitation of the damaged structures has led to the development of more effective and low invasive architectural and engineering strategies. In this aspect, the application of fibre reinforced polymer (FRP) strengthening techniques has become reasonably widespread as suitable solutions in addition to the traditional ones. They are promising techniques because of their key characteristics such as: high specific strength, high stiffness, small thickness compared to conventional materials, low influence on the global mass, little durability concerns, ease of handling, flexibility and fast installation that improve on-site productivity, and have a low impact on building functions. In this context, the use of carbon fibre reinforced polymers (CFRP) and glass fibre reinforced polymers (GFRP) for the rehabilitation of damaged small masonry walls (here called wallettes) was investigated experimentally. This study sought to measure the maximum loading carrying capacity of the wallettes and to assess the possible structural rehabilitation in the damaged masonry structures after their reinforcement with the composite polymers. For the adhesion between the wallettes and the reinforcement fibres, primer, putty and a saturant glue epoxy resins were used. Debonding between the FRP composites and the substrate has been recognized as the primary failure mechanism of this reinforcement system and it occurs when the system shear capacity is reached and the FRP is detached from the element. This phenomenon is also addressed in this paper. In general, the experimental results showed the recovery of the original compressive loading bearing capacity of the structures, in spite of the debonding of the FRP composites. Moreover, it could be observed an increasing of up to 39% and up to 49% of the compressive strength for the damaged masonry wallettes reinforced with CFRP and GFRP systems, respectively. The recover (or even rise) in the loading capacity of the reinforced structures due to the external fibres bonding is a good indication of their effectiveness in these situations.

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A numerical insight into the response of masonry reinforced by FRP strips. The case of perfect adhesion

Cited by 62 publications

References 12 publications

Numerical and experimental study of GFRP-masonry interface behavior: Bond evolution and role of the mortar layers

Numerical and experimental study of GFRP-masonry interface behavior: Bond evolution and role of the mortar layers

Solid Burnt Bricks’ Tensile Strength

Influence of fibre reinforced polymers in the rehabilitation of damaged masonry wallettes

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