A mechanics solution for hinges in RC beams with multiple cracks

Visintin, Phillip; Oehlers, Deric J.; Wu, Chengqing; Haskett, M.

doi:10.1016/j.engstruct.2011.11.028

Cited by 79 publications

(67 citation statements)

References 21 publications

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“…The study conducted by Kassem et al [26], on the other hand, showed that the beams with bundled sand-coated FRP bars developed fewer cracks with wider spacing than those with single bars owing to the better bond quality for single bars compared with bundled bars. This crack spacing mechanism described as a function of bond between the reinforcement and the concrete has been well researched and presented in the previous studies [38][39][40][41][42][43].…”

Section: Cracking Behaviourmentioning

confidence: 99%

Evaluation of the flexural strength and serviceability of geopolymer concrete beams reinforced with glass-fibre-reinforced polymer (GFRP) bars

Maranan

Manalo

Benmokrane

et al. 2015

Engineering Structures

141

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Geopolymer concrete reinforced with glass-fibre-reinforced polymer (GFRP) bars can provide a construction system with high durability, high sustainability, and adequate strength. Few studies deal with the combined use of these materials, and this has been the key motivation of this undertaking. In this study, the flexural strength and serviceability performance of the geopolymer concrete beams reinforced with GFRP bars were evaluated under a four-point static bending test. The parameters investigated were nominal bar diameter, reinforcement ratio, and anchorage system. Based on the experimental results, the bar diameter had no significant effect on the flexural performance of the beams. Generally, the serviceability performance of a beam is enhanced when the reinforcement ratio increases. The mechanical interlock and friction forces provided by the sand coating was adequate to secure an effective bond between the GFRP bars and the geopolymer concrete. Generally, the ACI 4401.R-06 and CSA S806-12 prediction equations underestimate the beam strength. The bending-moment capacity of the tested beams was higher than that of FRP-reinforced concrete beams from the previous studies.2

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Section: Cracking Behaviourmentioning

confidence: 99%

Evaluation of the flexural strength and serviceability of geopolymer concrete beams reinforced with glass-fibre-reinforced polymer (GFRP) bars

Maranan

Manalo

Benmokrane

et al. 2015

Engineering Structures

141

View full text Add to dashboard Cite

show abstract

“…In light of this, it is proposed that the moment-rotation (M/h) technique [17][18][19][20][21][22][23] be applied to derive the required M/v relationships. The M/h technique applies the partial interaction theory [24][25][26] in order to simulate flexural cracking and tension stiffening by directly simulating the slip of reinforcements in the RC beam.…”

Section: Objectivementioning

confidence: 99%

“…Similarly, any NSM reinforcement would also slip from the adjacent concrete. The load-slip (P/d) relationship of the reinforcements can be used to simulate the formation of new flexural cracks as well as the tension stiffening [17,25].…”

Section: Tension Stiffening Simulation For Steel and Nsm Reinforcementsmentioning

confidence: 99%

Simulating concrete cover separation in RC beams strengthened with near-surface mounted reinforcements

Shukri

Jumaat

2016

Construction and Building Materials

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“…Recently, a mechanics-based moment-rotation approach was introduced to simulate the structural behaviour of reinforced concrete [10] and Chen et al [11] proposed the use of a size-dependent compressive stress-strain relationship to be incorporated into the approach. As part of the study to utilise such approach to predict the behaviour of reinforced OPSC structural members, this study focuses on the investigation on the stress-strain behaviour of OPSC.…”

Section: Introductionmentioning

confidence: 99%