Bond behaviour of Steel Reinforced Polymer strengthening systems

Napoli, Annalisa; Felice, Gianmarco de; Santis, Stefano De; Realfonzo, Roberto

doi:10.1016/j.compstruct.2016.05.052

Cited by 42 publications

(19 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Actually, the debonding of the mortar coating from the masonry did not occur in the latter type of samples and load values higher than 12.4 kN were attained. Deeper investigations are needed on the mortar-masonry bond resistance, because many parameters, such as the presence of mortar joints and the actual distribution of the shear load, may affect this aspect [25]. -the debonding at mesh-mortar interface in A33-3 specimens may have been induced by the weakening of the shear plane due to the high reinforcement ratio.…”

Section: Test Results and Discussionmentioning

confidence: 99%

Characterization tests of GFRM coating as a strengthening technique for masonry buildings

Gattesco

Boem

2017

Composite Structures

View full text Add to dashboard Cite

Fiber Reinforced Mortars (FRM) represents a promising technique for the in-plane and out-of-plane reinforcement of existing masonry buildings, coupling effectiveness with compatibility needs. The paper focuses on a technique consisting in the application on the masonry surface of a 30 mm thick mortar coating with Glass Fiber-Reinforced Polymers (GFRP) meshes embedded, presenting and discussing the results of several characterization tests (pull-out, lap-splice, bond and tensile tests) performed so to investigate on the tensile properties and bond performances of the strengthening system, useful for correct design procedures and suitable also for numerical modeling

show abstract

Section: Test Results and Discussionmentioning

confidence: 99%

Characterization tests of GFRM coating as a strengthening technique for masonry buildings

Gattesco

Boem

2017

Composite Structures

View full text Add to dashboard Cite

show abstract

“…Every prism shows an increase in load between 4kN to 8kN for every width ratio. As the load gradually increased, the prism underwent minor FRP rupture and shear failure respectively [17]. …”

Section: Effect Of Width Ratio On Concretementioning

confidence: 99%

Failure Behaviour of Concrete Prisms Strengthened by Various Bond Widths of Carbon Fibre Reinforced Polymer (CFRP)

et al. 2017

View full text Add to dashboard Cite

Abstract. The use of fibre reinforced polymers (FRP) for external strengthening of concrete structures in various forms such as laminates and sheets has become moderately common. FRP is more effective as it provides a better solution in terms of properties and application. The effectiveness of the FRP strengthening system lies in the bond between concrete and FRP which is affected by various factors such as bond length of FRP, bond width, resin hardening and surface preparation. In certain cases, bond width is a major factor which ensures that the structure can be strengthened properly. This paper focuses mainly on the failure behaviour of concrete prisms strengthened by various bond width ratios of carbon Fibre Reinforced Polymer (CFRP) which are 20mm (0.27), 40mm (0.53), 60mm (0.8) and 75mm (1) respectively. A total of fifteen strengthened prisms measuring 75 mm x 75 mm x 350 mm were cast for a three-point load test. Twelve strengthened prism specimens were externally strengthened with CFRP and three specimens were designated as control. The findings show that a greater width ratio of CFRP will strengthen concrete prisms greatly and will result in different types of failure modes.

show abstract

“…Several researchers are being studied this local failure mechanism by proposing different test setups, generally based on either linear variable displacement transducers (LVDTs) or laser meter devices installed on composite plate and located at the beginning of bonded area, as well as on strain gauges, positioned along longitudinal direction [21][22][23]. Some recent studies have introduced a non-contact optical technique, digital image correlation (DIC), to obtain the FRPconcrete slip on extended areas of tested specimen rather than only on the beginning of bonded area [24][25][26][27][28][29][30][31][32]. This promising method also allows for an estimation, with a good accuracy, of the strain field on FRP and concrete core external surfaces.…”

Section: Introductionmentioning

confidence: 99%

Cohesive fracture in composite systems: experimental setup and first results

Berardi¹,

Perrella²,

Cricrı̀³

2019

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

Composite systems are widely used in many engineering applications for new structures and strengthening of existing ones. Within the structural rehabilitation of civil constructions, the plating technique of beams with Fiber Reinforced Polymer (FRP) represents a quick and optimal intervention with respect to traditional ones. The failure of these composite systems usually occurs due to the FRP debonding, which corresponds to a mode II fracture of concrete specimens. In this paper, a new experimental setup for investigating the mode II fracture behavior of FRP-concrete composite structures is presented. The test equipment consists of both conventional equipment and a non-contact optical technique, Digital Image Correlation (DIC), and the test system was realized at the Design Machine Laboratory of the University of Salerno. A preliminary test was performed and the corresponding results are shown and discussed.

show abstract

Bond behaviour of Steel Reinforced Polymer strengthening systems

Cited by 42 publications

References 30 publications

Characterization tests of GFRM coating as a strengthening technique for masonry buildings

Characterization tests of GFRM coating as a strengthening technique for masonry buildings

Failure Behaviour of Concrete Prisms Strengthened by Various Bond Widths of Carbon Fibre Reinforced Polymer (CFRP)

Cohesive fracture in composite systems: experimental setup and first results

Contact Info

Product

Resources

About