Shear strength calculating model of FRP bar reinforced concrete beams without stirrups

Zhang, Changhui

doi:10.1016/j.engstruct.2020.111025

Cited by 22 publications

(3 citation statements)

References 26 publications

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“…e current researches [8,9] have confirmed that the shear capacity of FRP bar reinforced concrete beams without web reinforcement, as shown in Figure 1, is influenced by several factors, such as concrete compressive strength (f c ′ ), shear span-to-depth ratio (a/d), elastic modulus of FRP bars (E f ), reinforcement ratio of longitudinal FRP bars (ρ f ), width of the beam (b) and effective depth of the beam (d). However, the influence of span-to-depth ratio (L/d) on the shear capacity of FRP bar reinforced concrete beams without web reinforcement is rarely involved, which represents the ratio of two sizes of the specimen, including effective span (L) and effective depth of the beam (d), respectively.…”

Section: Introductionmentioning

confidence: 99%

Prediction about Effect of Span‐to‐Depth Ratio on Shear Capacity for FRP Bar Reinforced Concrete Beams without Web Reinforcement

Gao

Wang

Zhang

et al. 2022

Advances in Civil Engineering

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Most of the prediction models for the shear capacity of FRP bar reinforced concrete beams without web reinforcement in current codes are reported to be conservative and do not consider the effect of span-to-depth ratio. Grey relational analysis (GRA) method was used in this paper to investigate the relevance of span-to-depth ratio with the shear capacity, and the results shown that the span-to-depth ratio greatly affects the shear capacity of FRP bar reinforced concrete beams without web reinforcement. A prediction model which considers the effect of span-to-depth ratio was proposed for the shear capacity of FRP bar reinforced concrete beams without web reinforcement by regression analysis, which is more accurate and reasonable in comparison with the current models.

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Section: Introductionmentioning

confidence: 99%

Prediction about Effect of Span‐to‐Depth Ratio on Shear Capacity for FRP Bar Reinforced Concrete Beams without Web Reinforcement

Gao

Wang

Zhang

et al. 2022

Advances in Civil Engineering

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“…is the elastic modulus of FRP bar, GPa; f ρ is the reinforcement ratio of FRP bars; exp c V is the test value of shear capacity, kN. 3 Calculation method of shear capacity 3.1 The calculation method of shear capacity provided by the design provisions (1)CAN/CSA-S806-2012Existing research results have shown that the shear capacity calculation method proposed in the CAN/CSA-S806-2012[72] has a more comprehensive consideration of the factors of shear capacity and a more accurate prediction effect among the widely used design provisions[24], The calculation method of shear capacity provided by the CAN/CSA-S806-2012 is shown in Equation (4):…”

mentioning

confidence: 99%

“…Accordingly, the domestic and oversea scholars conducted a variety of studies to propose a calculation method for the shear capacity of FRP reinforced concrete beams without web reinforcement with more comprehensive considerations and more accurate prediction effects by establishing a database with a relatively large sample size [23][24][25].…”

mentioning

confidence: 99%

Error analysis for calculation methods of shear capacity of FRP reinforced concrete beams without web reinforcement based on database

Wang

Fan

Chang-sheng

et al. 2023

Preprint

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The existing calculation methods of shear capacity of FRP reinforced concrete beams without web reinforcement are inconsistent in considering the factors of shear capacity, and there are different degrees of conservative calculation. Based on the experimental data of shear capacity in published literatures at home and abroad, a database with a sample size of 461 was established in this paper. The effects of six factors, such as the compressive strength of concrete, the width of the beam, the effective depth of the beam, the shear span to depth ratio, the reinforcement ratio of FRP bars and the elastic modulus of FRP bar, on shear capacity were analyzed comprehensively, and the prediction effect of each calculation method was evaluated. The results showed that the influence of each calculation method on the size effect and shear span to depth ratio was not consistent, and there were different degrees of conservative calculation, there was a good correlation between the factors and the shear capacity; among the design provisions recommended by different countries, the CSA/CAN-S806-2012 has a more accurate prediction effect, and the ACI440.1R-2015 has the most conservative prediction effect; among the calculation models provided by scholars, the prediction effect of Ahmed-2021 is more accurate, and that of Alam-2013 is the most conservative. The research results provided the certain referential value for developing the calculation method of shear capacity of FRP reinforced concrete beams without web reinforcement.

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Experimental Investigation of the Effects of FRP Bar Fiber Type and Surface Characteristics on the Performance of Reinforced Concrete Beams

Aydın,

Saribiyik

et al. 2023

Iran J Sci Technol Trans Civ Eng

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Shear strength calculating model of FRP bar reinforced concrete beams without stirrups

Cited by 22 publications

References 26 publications

Prediction about Effect of Span‐to‐Depth Ratio on Shear Capacity for FRP Bar Reinforced Concrete Beams without Web Reinforcement

Prediction about Effect of Span‐to‐Depth Ratio on Shear Capacity for FRP Bar Reinforced Concrete Beams without Web Reinforcement

Error analysis for calculation methods of shear capacity of FRP reinforced concrete beams without web reinforcement based on database

Experimental Investigation of the Effects of FRP Bar Fiber Type and Surface Characteristics on the Performance of Reinforced Concrete Beams

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