Experimental and Numerical Study for the Shear Strengthening of Reinforced Concrete Beams Using Textile-Reinforced Mortar

Al-Salloum, Yousef; Elsanadedy, Hussein M.; Alsayed, Saleh H.; Iqbal, Rizwan A.

doi:10.1061/(asce)cc.1943-5614.0000239

Cited by 173 publications

(60 citation statements)

References 6 publications

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“…The effectiveness of this non-conventional, environmentally friendly material that combines advanced fibers, in the form of textiles, with inorganic matrices (e.g. 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.…”

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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“…na način da se tkanina postavi u smjeru okomitom na uzdužnu os grede, ili spiralno, pod nekim kutom u odnosu na os grede. Pri ispitivanju s manjim brojem slojeva nije bilo razlika u učinkovitosti konfiguracija [9], dok je pri većem broju slojeva spiralna konfiguracija imala veću čvrstoću [10]. Mehaničko sidrenje kompozita u grede T-presjeka, usidrenim sa zakrivljenim čeličnim presjecima i vijcima, a povećava čvrstoću uzorka, to više što je razmak vijaka manji [11].…”

Section: Slika 1 Radni Dijagram Vlačno Opterećenog Trm-a I Pojednostunclassified

Textile reinforced mortars (TRM) as strengthening technique for reinforced concrete structures

Carić¹

2017

Zajednički Temelji 2017 - Peti Skup Mladih Istraživača Iz Područja Građevinarstva I Srodnih Tehničkih Znanosti - Zbornik Radova

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SažetakPosljednjih se godina za pojačanja konstrukcija istražuju tkaninom armirani mortovi (TRM). To su kompoziti koji se sastoje od vlakana (staklenih, ugljičnih, bazaltnih, PBO) i anorganske (cementne) matrice. Nastali su iz potrebe za rješavanjem nedostataka epoksidne matrice kod vlaknima armiranih polimera (FRP-a). Anorganska matrica ima veći toplinski kapacitet, a ponašanje elementa u vlaku nije linearno elastično. Snopovi vlakana su formirani u mreže kako bi se ostvarila povezanost s matricom. Provedeno je više istraživanja pojačanja armiranobetonskih i zidanih konstrukcija, a u ovom radu prikazana su pojačanja armiranobetonskih (AB) ploča, greda i stupova. Istaknuti su parametri koji utječu na učinkovitost kompozitnog djelovanja, a time i učinkovitost pojačanja te ponašanje pojačanih elemenata. Ključne riječi: TRM, pojačanja, AB, vlakna, mort, tkanina Textile reinforced mortars (TRM) as strengthening technique for reinforced concrete structures AbstractIn the last years, textile reinforced mortars (TRM) have been studied for the strengthening of structures. TRM are composites made of fibres (glass, carbon, basalt, PBO) embedded in inorganic (cementitious) matrix. They have been developed due to fibre reinforced polymers (FRP) epoxy matrix´s disadvantages. Inorganic matrix has higher thermal capacity and tensile behavior of material is non linear elastic. Fibre rovings form fabric grids in order to achieve the bond with the matrix through penetration of mortar through the fabric. Several studies have been carried out on the strengthening of reinforced concrete and masonry structures. Strengthening of reinforced concrete (RC) slabs, beams and columns is presented in this paper. Parameters that affect the effectiveness of composite action, and thus the effectiveness of strengthened elements are highlighted.

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“…Conversely, the numerical analysis of reinforced concrete elements strengthened with TRM has received significant attention. In this line, some authors have dealt with numerical modelling TRM-strengthened reinforced concrete beams subjected to flexural loading conditions [14,15], other have been focused on the shear strengthening [16] or on the numerical analysis of particular construction elements made of reinforced concrete like slabs [17] or beam-columns joints [18]. To some extent, the modelling of TRM reinforced concrete can be considered as a reference case and may provide some insight at modelling TRM reinforced masonry structures.…”

Section: Introductionmentioning

confidence: 99%

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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Experimental and Numerical Study for the Shear Strengthening of Reinforced Concrete Beams Using Textile-Reinforced Mortar

Cited by 173 publications

References 6 publications

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

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

Textile reinforced mortars (TRM) as strengthening technique for reinforced concrete structures

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

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