Shear strength investigation of the carbon fiber reinforced polymer-wrapped concrete beams using gene expression programming and finite element analysis

Wassel Al-Bodour, Y. Murad, Rana Imam, Yahia Smadi
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引用次数: 3

Abstract

ABSTRACT Existing analytical and numerical models available in the literature can predict the shear strength of CFRP in RC beams based on the FRP strains and this requires measuring the FRP strain values. This research aims to predict the shear strength of CFRP in RC beams without the need to calculate the strains in FRP. Therefore, Gene Expression Programming (GEP) is used in this research to forecast the contribution of the CFRP to shear strength in the RC beams without the need for calculating the strain of the CFRP. A comparison was later performed amongst the empirical findings of the developed GEP model and other models available in published research. The adequate accuracy and highest predictive ability were noticed for the developed GEP model relative to the models published previously. Strengthened reinforced concrete (RC) beams with epoxy-bonded carbon fiber reinforced polymer (CFRP) sheets at various angles of orientation were examined to investigate their shear behavior. The experimental outcomes of the tested specimens were then applied to build a finite element (FE) model using ABAQUS. The proposed FE model was able to forecast the experimental behavior of the samples examined with sufficient precision.
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基于基因表达式编程和有限元分析的碳纤维包覆混凝土梁抗剪强度研究
现有的文献分析和数值模型可以基于FRP应变来预测FRP在RC梁中的抗剪强度,这需要测量FRP应变值。本研究的目的是在不需要计算FRP应变的情况下预测FRP在RC梁中的抗剪强度。因此,在无需计算碳纤维布应变的情况下,本研究采用基因表达式编程(GEP)预测碳纤维布对RC梁抗剪强度的贡献。随后,在开发的GEP模型和其他已发表的研究中可用的模型的实证结果之间进行了比较。与已有模型相比,所建立的GEP模型具有较高的预测精度和预测能力。研究了不同取向角环氧粘结碳纤维增强聚合物(CFRP)板的钢筋混凝土梁的抗剪性能。利用ABAQUS软件建立了试件的有限元模型。所提出的有限元模型能够以足够的精度预测所检测样品的实验行为。
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CiteScore
3.90
自引率
9.50%
发文量
24
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