Experimental Behavior of Jacketed Reinforced Concrete Beams

Cheong, Hee Kiat; MacAlevey, Niall

doi:10.1061/(asce)0733-9445(2000)126:6(692)

Cited by 51 publications

(24 citation statements)

References 1 publication

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“…In the present study, only the contribution of 31 the tows perpendicularly arranged to the longitudinal axis of the beam have been taken into account to 32 obtain results that can be directly comparable with other design codes. 33 34 35…”

Section: Fib-bulletin 14 Model 14mentioning

confidence: 99%

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Experimental and analytical study of reinforced concrete beams shear strengthened with different types of textile-reinforced mortar

Escrig

Gil

Puigvert³

2015

Construction and Building Materials

149

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7Textile-reinforced mortar (TRM) is a composite material that overcomes some drawbacks of other RC 8 (reinforced concrete) shear strengthening solutions. In this work, four different types of TRM are used as a 9 shear strengthening system on RC beams tested until failure. A comparative study of their mechanical 10 performance shows that the different TRM combinations used were able to increase the load bearing 11 capacity and change their failure mode. Moreover, new methodologies that permit evaluating the bonding 12 behaviour of TRM and the increment in flexural toughness are presented. The experimental results are 13 compared with previous FRP and TRM analytical formulations. Finally, new formulae for calculating the 14 shear contribution of TRM based on experimental results are proposed. 15

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Section: Fib-bulletin 14 Model 14mentioning

confidence: 99%

“…Nevertheless, the use of organic resins classifies this latest reinforcement technique as an environmentally 32 unfriendly solution, which also implies technical issues as noted in the work by Triantafillou and 33…”

mentioning

confidence: 99%

Experimental and analytical study of reinforced concrete beams shear strengthened with different types of textile-reinforced mortar

Escrig

Gil

Puigvert³

2015

Construction and Building Materials

149

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“…Radi ojačanja konstrukcijskih elemenata, projektanti se najčešće odlučuju za vanjske obloge od čelika [2][3][4][5][6], ploče od polimera ojačanog vlaknima (eng. Fibre Reinforced Polymer -FRP) [7][8][9] te AB obloge [10][11][12][13][14][15]. Altun [16] je odredio i eksperimentalno usporedio mehanička svojstva AB greda podvrgnutih savijanju prije i nakon oblaganja AB oblogom.…”

Section: Uvodunclassified

Ojačanje ab greda tehnikom povezivanja s predgotovljenom ab pločom

2015

JCE

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Ojačanje ab greda tehnikom povezivanja s predgotovljenom ab pločom U radu se analizira ponašanje AB greda ojačanih predgotovljenim AB pločama pravokutnog i U-presjeka. Provedeno je eksperimentalno istraživanje s ciljem ocjenjivanja učinkovitosti ojačanja predgotovljenim pločama. To je istraživanje popraćeno i 2-D nelinearnom analizom uz primjenu metode konačnih elemenata (NLFEA). Rezultati NLFEA analize su pokazali dobro podudaranje s rezultatima ispitivanja. Smatra se da je predloženi postupak dobra alternativa ojačanju pomoću AB obloga te da je taj postupak praktičan, ekonomičan i pouzdan za zgrade ili mostove s većim brojem jednakih greda. RC beam strengthening using precast RC plate bonding techniqueThe behaviour of RC beams strengthened with precast RC plates of rectangular and U cross-section is studied in the paper. An experimental investigation was conducted to assess effectiveness of strengthening with precast plates. The investigation was supported with the 2-D nonlinear finite element analysis (NLFEA). The NLFEA results showed a good level of correlation with test results. The proposed technique is considered to be a good alternative to RC jacketing and the technique is practical, economical and reliable for buildings or bridges with a greater number sisof similar beams.

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“…(1), (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13), (16) and (18)(19)(20), the strain distribution profile at any position x from a zero moment section (A or B) can be calculated. In order to calculate the bending moment (Mx) at a distance x from the zero moment section A, lever arms z, z΄ and z΄΄ need to be determined.…”

Section: Analytical Evaluation Of Bending Slip Along the Interface Ofmentioning

confidence: 99%

A theoretical model to predict interface slip due to bending

Τσιούλου

Dritsos

2010

Mater Struct

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Casting a new concrete layer on the tensile or compressive side of a reinforced concrete element is a common technique that is used to increase the flexural capacity of weak reinforced concrete elements. Until now however, a model has not been presented in the literature to evaluate the slip between the two components. Usually, in common practical design, slip is ignored and the strengthened element is assumed monolithic. This may not be a conservative assumption, as any slip would affect the ultimate resistance of the strengthened element. In the present paper, an analytical procedure is presented that predicts the distribution of slip strain, slip and shear stress along a reinforced or unreinforced interface between an initial beam and a new concrete layer. By following this process, the capacity of a strengthened beam is determined by taken slip into account. In addition, a step-by-step design procedure is presented and then applied to an experimental result. Good agreement if found. Further verification of the analytical procedure is performed by comparison with finite element analysis and very good agreement is found.

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Experimental Behavior of Jacketed Reinforced Concrete Beams

Cited by 51 publications

References 1 publication

Experimental and analytical study of reinforced concrete beams shear strengthened with different types of textile-reinforced mortar

Experimental and analytical study of reinforced concrete beams shear strengthened with different types of textile-reinforced mortar

Ojačanje ab greda tehnikom povezivanja s predgotovljenom ab pločom

A theoretical model to predict interface slip due to bending

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