Static and Cyclic Out-of-Plane Response of Masonry Walls Strengthened Using Textile-Mortar System

Harajli, Mohamed H.; ElKhatib, H.; San-José, José T.

doi:10.1061/(asce)mt.1943-5533.0000128

Cited by 100 publications

(57 citation statements)

References 3 publications

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“…cement-based mortars) for strengthening reinforced concrete structures has been reported less than a decade ago by , and Bournas et al (2007); and more recently by D'Ambrisi and Focacci (2011), Al-Salloum et al (2011, 2012 and Loreto et al (2014). Tests on masonry sub-assemblies and wallettes have provided experimental evidence that TRM is effective in strengthening masonry structures too, as it enhances both the in-plane and out-of-plane strength , Papanicolaou et al 2008, Harajli et al 2010, Augenti et al 2011, Papanicolaou et al 2011, Babaeidarabad et al 2013, as well as the strength in diagonal compression (Prota et al 2006, Babaeidarabad et al 2014. Nonetheless, in all these studies individual, single storey wall-type masonry specimens were employed, without considering the frame-wall interaction in multistorey structures.…”

Section: Introductionmentioning

confidence: 99%

Seismic Strengthening of Masonry-Infilled RC Frames with TRM: Experimental Study

2015

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Abstract:The paper presents a technique for retrofitting non-seismically reinforced concrete (RC) masonry-infilled frames with textile-reinforced mortar (TRM) jacketing. In the present study the application of TRM is examined on nearly full-scale, as-built and retrofitted, three-storey frames, subjected to in-plane cyclic loading. The results of testing a 2:3 scale, as-built frame representing typical structures with non-seismic design and detailing characteristics and of a companion frame retrofitted via TRM jacketing are presented and compared in terms of the efficiency of the proposed technique to enhance the strength and deformation characteristics of sub-standard infilled frames.

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Section: Introductionmentioning

confidence: 99%

Seismic Strengthening of Masonry-Infilled RC Frames with TRM: Experimental Study

2015

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“…However, this technique has a few drawbacks which are attributed to the resins used to bind or impregnate the fibers. These drawbacks include poor behavior of epoxy resins at high temperatures; the requirement of special and expensive fire protection measures; the relatively high cost of epoxies; a lack of vapor permeability, which may cause damage to the concrete or masonry structure, and the incompatibility of epoxy resins and substrate materials (Harajli et al 2010;Kolsch 1998;Papanicolaou et al 2011;Pinho et al 2014).…”

Section: Introductionmentioning

confidence: 99%

“…The wall systems exhibited a considerable increase in the out-of-plane bending capacity compared with the unstrengthened walls. Harajli et al (2010) investigated URM walls strengthened with textile reinforced mortar. Specimens (N = 25) were constructed of different stones-hollow block, brick, and sandstone-bonded by a mortar.…”

Section: Introductionmentioning

confidence: 99%

Strengthening of Historical Stone Masonry Buildings in Oman using Textile Reinforced Mortars

et al. 2017

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Most historical buildings and structures in Oman were built using unreinforced stone masonry. Such structures are prone to damage from seismic activity as these structures have negligible resistance to tensile stresses. This paper presents an exploration of the physical and chemical properties of local building materials and the results of experiments with a new strengthening technique using textile reinforced mortar. Limestone and Sarooj were the main building materials used historically in these buildings. Sarooj is a local Omani term for artificial pozzolana produced by calcining clays. Two mortar mixes were developed, one as the jointing mortar and the second as the matrix mortar. The second part of the study consisted of the construction of three masonry walls and two columns of 0.35 x 0.25 x 1.2 m (width x depth x height). The three walls were strengthened using externally bonded textiles using three different combinations of mortar and textile. One column specimen was kept as a control and the other was fully wrapped with carbon textile reinforced mortar. The walls were tested under out-of-plane four-point bending. All the wall specimens showed a significant improvement in strength up to three times its self-weight and reasonable deformation before failure. The column specimens were tested under axial compression. The failure load and displacement of the strengthened columns increased by seven and three times, respectively, compared to the control column.

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“…Such composites are typically made of a composite grid (made of synthetic fibers such as glass, carbon or PBO, or of natural fibers such as flax or hemp) immersed in an inorganic mortar (based on cement, lime or geopolymer material), making their mechanical behavior different from conventional FRPs [1][2][3][4]. The choice of the matrix and reinforcing material along with the determination of total thickness of the composite system mostly depends on the type of substrate and mechanical contribution requested from the intervention.…”

Section: Introductionmentioning

confidence: 99%

“…application of eccentric compressive load [10][11]; 2. application of airbag loading [12]; 3. three or four points bending [13][14].…”

Section: Introductionmentioning

confidence: 99%

Fibre-Based Sectional Analysis of Urm Walls With Single-Side FRCM Strengthening

Menna¹,

Parisi²,

Prota³

2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Static and Cyclic Out-of-Plane Response of Masonry Walls Strengthened Using Textile-Mortar System

Cited by 100 publications

References 3 publications

Seismic Strengthening of Masonry-Infilled RC Frames with TRM: Experimental Study

Seismic Strengthening of Masonry-Infilled RC Frames with TRM: Experimental Study

Strengthening of Historical Stone Masonry Buildings in Oman using Textile Reinforced Mortars

Fibre-Based Sectional Analysis of Urm Walls With Single-Side FRCM Strengthening

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