Debonding resistance of FRP-to-clay brick masonry joints

Kashyap, J.; Willis, C.; Griffith, Michael; Ingham, Jason; Masia, Mark J.

doi:10.1016/j.engstruct.2012.03.032

Cited by 53 publications

(52 citation statements)

References 37 publications

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“…Different wall failure modes 46 associated with this retrofit technique have been discussed in Hamed and Rabinovitch (2010), 47 and further studies focused on the characterization of FRP debonding as the preferred failure 48 mode have been reported in Kashyap et al (2012) and the references therein. In the composite 49 NSM FRP retrofitted wall section, the FRP strips resist the tensile stresses and the masonry 50 material resists the compression stresses.…”

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confidence: 99%

In Situ Out-of-Plane Testing of As-Built and Retrofitted Unreinforced Masonry Walls

et al. 2014

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Draft ManuscriptAuthors may post the final draft of their work on open, unrestricted Internet sites or deposit it in an institutional repository when the draft contains a link to the bibliographic record of the published version in the ASCE Library or Civil Engineering Database. "Final draft" means the version submitted to ASCE after peer review and prior to copyediting or other ASCE production activities; it does not include the copyedited version, the page proof, or a PDF of the published version. varied from 80 to 130 years, and all but one were constructed using clay brick masonry with 6 timber floor and roof diaphragms. The fourth building was a reinforced concrete frame structure 7 with pre-cracked clay block partition walls in addition to partition walls that appeared 8 undamaged. The test program was comprised of testing five one-way vertically spanning solid 9 URM walls from the group of three URM buildings and testing four two-way spanning URM 10 partition walls from the reinforced concrete frame building. All walls were tested with their 11 original support conditions, but three one-way spanning walls were additionally re-tested with 12 modified support conditions. These additional tests allowed the effects of wall support type to be 13 investigated, including the influence of a concrete ring beam used at the floor levels and the 14 influence of wall to timber diaphragm anchorage by means of grouted steel rods. Several walls 15 were next retrofitted by adding either near-surface mounted (NSM) carbon fiber reinforced 16 polymer (FRP) strips or NSM twisted steel bars (TSB), and were then re-tested.

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confidence: 99%

In Situ Out-of-Plane Testing of As-Built and Retrofitted Unreinforced Masonry Walls

et al. 2014

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“…A very usual failure is caused by loss of bond of the FRP reinforcement, named as debonding failure. Some of the common out-of-plane failure mechanisms of FRP strengthened masonry elements include sliding of the masonry units, flexural-shear cracking, FRP rupture, FRP debonding, punching shear and crushing of brick in compression [2][3][4][5][6][7][8]. The bond mechanism is complex because it depends on the mechanical properties of masonry blocks, mortar joints, adhesive and FRP reinforcement [9].…”

Section: Introductionmentioning

confidence: 99%

“…The bond mechanism is complex because it depends on the mechanical properties of masonry blocks, mortar joints, adhesive and FRP reinforcement [9]. The strength and ductility of a masonry member retrofitted with longitudinal externally bonded FRP is usually controlled by the intermediate crack (IC) debonding failure mechanism [8].…”

Section: Introductionmentioning

confidence: 99%

Prediction of debonding strength for masonry elements retrofitted with FRP composites using neuro fuzzy and neural network approaches

Mansouri

Kisi

2015

Composites Part B: Engineering

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“…Fig. 11 [77][78][79][80]. The U-shaped double shear pull test setup was also designed and applied to concrete block and clay brick tests.…”

Section: Testing Methods and Configurations For Concrete Substratesmentioning

confidence: 99%

A Review of Direct Shear Testing Configurations for Bond between Fiber-Reinforced Polymer Sheets on Concrete and Masonry Substrates

Shadravan

Tehrani

2017

Period. Polytech. Civil Eng.

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The surface bond characteristics of Fiber-Reinforced Polymer (FRP) IntroductionApplication of surface-bonded fiber-reinforced polymer (FRP) sheets is an attractive retrofit technique to achieve deformation control and improved strength in brittle masonry and concrete vertical and horizontal structural members.The surface bond characteristics of FRP sheets have been a topic of research in last decades. The sheets exhibit brittle performance and often delaminate prematurely before they attain the full strength of materials.Based et al. (2007) hypothesized that the testing method and setup in experimental studies changes the way that loading conditions and the fracture mechanism are modeled in the study, and thus, affects the interpretation of results. This paper reviews available testing procedures and configurations and proposes a new method for direct shear testing method [11].

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Debonding resistance of FRP-to-clay brick masonry joints

Cited by 53 publications

References 37 publications

In Situ Out-of-Plane Testing of As-Built and Retrofitted Unreinforced Masonry Walls

In Situ Out-of-Plane Testing of As-Built and Retrofitted Unreinforced Masonry Walls

Prediction of debonding strength for masonry elements retrofitted with FRP composites using neuro fuzzy and neural network approaches

A Review of Direct Shear Testing Configurations for Bond between Fiber-Reinforced Polymer Sheets on Concrete and Masonry Substrates

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