Textile-reinforced mortar (TRM) versus FRP as strengthening material of URM walls: in-plane cyclic loading

Papanicolaou, Catherine; Triantafillou, Thanasis; Karlos, Kyriakos; Papathanasiou, Myrto

doi:10.1617/s11527-006-9207-8

Cited by 335 publications

(139 citation statements)

References 3 publications

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“…While this method has been extensively researched and its effectiveness validated, the difficulty of removal and the long term behaviour of epoxy adhesives are major obstacles for widespread use and acceptance within heritage bodies. The utilization of inorganic matrices, based on hydraulic and cement mortars, is thus a desirable device to avoid the use of epoxy or organic resins (Prota et al 2006, Papanicolaou et al 2008, Borri at al. 2014, Gattesco et al 2015, Carozzi and Poggi 2015.…”

Section: Introductionmentioning

confidence: 99%

The Reticulatus method for shear strengthening of fair-faced masonry

Corradi

Borri

Castori

et al. 2016

Bull Earthquake Eng

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This paper presents the results of several experimental campaigns recently carried out by the authors and devoted to the investigation of the mechanical performance of wall panels strengthened by applying repointing mortar and high strength stainless steel or composite cords. The reinforcement system, known as Reticulatus, allows the reinforcement of regular and irregular-shape masonry walls, when the fair-faced aspect must be kept. In the perspective of using this reinforcement method, this article summarizes the research that has been done so far, presenting new original test results and discussing the design procedures. Twenty-two square wall panels were loaded in their plane by means of a single point load acting through the panel's diagonal. Experimental results are presented for four types of cord 2 reinforcement using matched samples, reinforced and not. Increases in shear strength from 15 to 170% were achieved for the strengthened panels. Each wall panel was loaded well into the lateral post-elastic regime and then unloaded.Experimental results were in good agreement with predictions from simple models which assume the wall panels to behave like a plate, neglecting the contribution of the repointing mortar, and accounting for the non-linear behavior of the masonry.

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Section: Introductionmentioning

confidence: 99%

The Reticulatus method for shear strengthening of fair-faced masonry

Corradi

Borri

Castori

et al. 2016

Bull Earthquake Eng

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“…The advantages of TRM in front of other possible strengthening solutions based on organic matrixes (e.g. Fibre Reinforced Polymer, FRP), have been reported in by Papanicolaou et al [6,7]. The main differences between these two strengthening systems arise from the organic/inorganic nature of the corresponding matrix.…”

Section: Introductionmentioning

confidence: 96%

Numerical analysis of the load-bearing capacity of brick masonry walls strengthened with textile reinforced mortar and subjected to eccentric compressive loading

Bernat-Masó

Roca

2015

Engineering Structures

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A numerical model has been implemented to simulate brick masonry walls strengthened with Textile Reinforced Mortar (TRM) and subjected to second order bending effects in order to cover the limited research in this area. Simulations have been compared with experimental cases and applied to enhance the knowledge about the influence of different strengthening variables. The model is accurate at predicting the load-bearing capacity of the walls, which might be increased by strengthening both sides. Moreover, the TRM is more effective for the most slender cases and the numerical results suggest future improvements to reproduce the wall's stiffness.

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“…The in-plane behavior of URM walls retrofitted by near-surface-mounted FRP or twisted steel bars is also addressed by a number of researchers [17][18]. Some researchers have used fabric-reinforced-cementitious-matrix, polymer textile reinforced mortar (TRM) overlay or polymeric net reinforced cementitious matrix for in-plane strengthening of URM walls [19][20][21][22][23][24][25]. Some other types of retrofitting techniques are using pre-tensioned stainless steel ribbons [26], steel strips [27] and high strength steels chords [28].…”

Section: Introductionmentioning

confidence: 99%

Application of Ordinary Fiber-Reinforced Concrete Layer for In-plane Retrofitting of Unreinforced Masonry Walls: Test and Modeling

et al. 2018

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The masonry walls should have sufficient in-plane strength and stiffness to withstand the seismic loads during strong ground shakings. Different retrofitting techniques are proposed for improving in-plane behavior of the Unreinforced Masonry (URM) walls. This study focuses on experimental evaluation and numerical simulation of a simple practical retrofitting technique employing Fiber Reinforced Concrete (FRC) surface layer. The simple FRC mix has conventional available fiber, low fiber content, ordinary mix design and applicable construction procedure. Effect of FRC mix including fiber type and fiber content and surface layer thickness on in-plane behavior of masonry panels made up of conventional solid clay bricks are evaluated through experimental study in accordance with ASTM E-519 diagonal tension strength of masonry panels. In addition, numerical simulation model of this retrofitting technique in ABAQUS software is proposed and validated with test results of bare and retrofitted panels.

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Textile-reinforced mortar (TRM) versus FRP as strengthening material of URM walls: in-plane cyclic loading

Cited by 335 publications

References 3 publications

The Reticulatus method for shear strengthening of fair-faced masonry

The Reticulatus method for shear strengthening of fair-faced masonry

Numerical analysis of the load-bearing capacity of brick masonry walls strengthened with textile reinforced mortar and subjected to eccentric compressive loading

Application of Ordinary Fiber-Reinforced Concrete Layer for In-plane Retrofitting of Unreinforced Masonry Walls: Test and Modeling

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