Prediction of crack width and intermediate-crack-debonding strain of FRP bonded two-way RC slabs - a comparative and novel approach Online publication date: Mon, 11-Oct-2021
by G. Balamurugan; T.S. Viswanathan
International Journal of Structural Engineering (IJSTRUCTE), Vol. 11, No. 4, 2021
Abstract: This paper presents the confirmation study for the suitability of existing models to forecast the maximum crack width (MCW) and intermitted-crack-debonding (ICD) strain of fibre-reinforced polymer (FRP) bonded two-way reinforced concrete (RC) slabs. The experimental results of MCW and ICD strain of FRP bonded two-way RC slabs compared with predicted values, which shows the higher coefficient of variation. This variation indicates that the additional factors need to consider to determine the MCW, and ICD strain of FRP bonded two-way RC slabs. Subsequently, the new prediction models proposed for MCW and ICD strain of FRP bonded two-way RC slabs based on the random forest (RF) classification algorithms and multiple linear regressions. The numerical factors revealed that the proposed RF and regression based-models are the finest to predict the MCW, and ICD strain of FRP bonded two-way RC slabs.
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