Recently, the use of fiber-reinforced polymers (FRP)-confinement has increased due to its various favorable effects on concrete structures, such as an increase in strength and ductility. Therefore, researchers have been attracted to exploring the behavior and efficiency of FRP-confinement for concrete structural elements further. The current study investigates improved strength and strain ...

Get PriceSep 07, 2020 Prediction of Properties of FRP-Conﬁned Concrete Cylinders Based on Artiﬁcial Neural Networks Afaq Ahmad 1 , V agelis Plevris 2, * and Qaiser-uz-Zaman Khan 1

Get PriceAn empirical model for predicting the mechanical properties of FRP-confined concrete. The mechanism of confining concrete using FRP materials was studied experimentally in numerous works, whereas several models were proposed for the prediction of the mechanical properties of FRP-confined concrete.

Get PriceMay 01, 2008 Abstract. The mechanism of confining concrete using FRP materials was studied experimentally in numerous works, whereas several models were proposed for the prediction of the mechanical properties of FRP-confined concrete. The first part of this paper is devoted to systematic assessment of the performance of some of the existing models.

Get PriceNov 01, 2010 Strengthening and retrofitting of concrete columns by wrapping and bonding FRP sheets has become an efficient technique in recent years. Considerable investigations have been carried out in the field of FRP-confined concrete and there are many proposed models that predict the compressive strength which are developed empirically by either doing regression analysis using existing test data or by ...

Get PriceMar 01, 2012 The current study used the data described above for the prediction of compressive strength (272 data points) and crushing strain (230 data points) of FRP-confined concrete. The training of the above two models was done using 66.67% of the data (181 data points for compressive strength and 153 for crushing strain) selected randomly.

Get PriceThe prediction models based on neural network are presented. The influence of raw and the non-dimensional group of variables on compressive strength and crushing strain of FRP-confined concrete is studied through sensitivity analysis, which provided a basis for the development of a new regression based model.

Get PriceFeb 01, 2013 During the last decade a significant number of analytical studies aimed at predicting the mechanical properties of FRP-confined concrete, such as ultimate strength and ductility (axial strain increase), were produced. They allow to understand how certain variables may affect the behavior of FRP-confined concrete subjected to axial compression.

Get PriceNov 20, 2020 ANN prediction of shear strength of concrete beam , gives confidence in using ANN tools to predict shear strength of properties of the concrete structures. The prediction of FRP—confined compressive strength of the concrete using artificial neural network with experimental data and its

Get PriceThe mechanism of confining concrete using FRP materials was studied experimentally in numerous works, whereas several models were proposed for the prediction of the mechanical properties of FRP ...

Get PriceOriginalversjon Ahmad, A., Plevris, V. Khan, Q. (2020). Prediction of properties of FRP-confined concrete cylinders based on artificial neural networks.

Get PriceSep 14, 2020 Constitutive Modeling of New Synthetic Hybrid Fibers Reinforced Concrete from Experimental Testing in Uniaxial Compression and Tension. Previous Article in Journal. Effects of CF 4 Plasma Treatment on Indium Gallium Oxide and Ti-doped Indium Gallium Oxide Sensing Membranes in Electrolyte–Insulator–Semiconductors.

Get PriceThe prediction of FRP-confined compressive strength of the concrete using artificial neural network with experimental data and its comparison shows good agreement [8]. The prediction of various ...

Get PriceThe predictions of each proposed model are subsequently used to establish the interdependence of critical parameters and their influence on the behavior of FRP-confined concrete, which are ...

Get PriceConceptual Model for Prediction of FRP-Concrete Bond Strength under Moisture Cycles C. Tuakta1 and O. Büyüköztürk, M.ASCE2 Abstract: Fiber-reinforced polymer (FRP) retrofit systems for concrete structural memberssuch asbeams,columns,slabs, and bridge decks

Get PriceThe mechanism of confining concrete using FRP materials was studied experimentally in numerous works, whereas several models were proposed for the prediction of the mechanical properties of FRP-confined concrete. The first part of this paper is devoted to systematic assessment of

Get PriceSep 13, 2016 The accurate prediction of ultimate conditions for fiber reinforced polymer (FRP)-confined concrete is essential for the reliable structural analysis and design of resulting structural members. Nonlinear mathematical models can be used for accurate calibration of strength and strain enhancement ratios of FRP-confined concrete. In this paper, a new procedure is proposed to calibrate the ...

Get PriceNov 20, 2020 ANN prediction of shear strength of concrete beam , gives confidence in using ANN tools to predict shear strength of properties of the concrete structures. The prediction of FRP—confined compressive strength of the concrete using artificial neural network with experimental data and its

Get PriceAbstract This study addresses the availability of the genetic programming (GP) approach for the formulation of strength enhancement of FRP (fiber‐reinforced polymer) confined concrete cylinders. Th...

Get PriceFor predicting the properties of FRP-confined concrete at ultimate accurately, it is important to use a large test database. However, using a large test database in not enough for accuracy of a proposed model and it is also necessary to establish the reliability of such a database using an efficient reliability method [ 41 ].

Get PriceThe mechanism of confining concrete using FRP materials was studied experimentally in numerous works, whereas several models were proposed for the prediction of the mechanical properties of FRP ...

Get PriceAfter widely reviewing the literature on FRP-confined concrete, variables such as the FRP type, the number of FRP layers, the concrete strength, and the cross-sectional shape and size were investigated extensively in these experimental programs, and the influence of spiral or transverse steel reinforcement was rarely considered. (see Fig. 3 ...

Get Priceconcrete specimens confined with CFRP wraps improved with. the increase in the CFRP wraps. For the concrete having 12.5. MPa strength, the percentage increase of 69.4% and 87.2%. observed in the ...

Get PriceThe criticality of interfacial defect in FRP confined concrete column system was investigated experimentally in this study. The ultimate strength and ultimate strain of FRP confined concrete column are slightly reduced within 5% when the area of interfacial defects is smaller than 50% of total confinement area.

Get PriceThe mechanism of confining concrete using FRP materials was studied experimentally in numerous works, whereas several models were proposed for the prediction of the mechanical properties of FRP ...

Get PriceTherefore, this study adopted eleven high-performance ultimate strength and strain models developed for FRP-confined normal aggregate concrete (NAC) to predict the mechanical properties of FRP-confined RAC. All the predictions had good agreement with the test results, which further confirmed similar roles played by FRP confinement in improving ...

Get PriceJan 05, 2016 In the prediction of the strength enhancement ratios of FRP-confined concrete (f′ cc /f′ co), the unconfined concrete strength (f′ co), confinement stiffness of the FRP jacket (K l = 2 E f.t f /D, where t f is the total nominal thickness of fibers used in the jacket), and hoop

Get PriceSep 13, 2016 The accurate prediction of ultimate conditions for fiber reinforced polymer (FRP)-confined concrete is essential for the reliable structural analysis and design of resulting structural members. Nonlinear mathematical models can be used for accurate calibration of strength and strain enhancement ratios of FRP-confined concrete. In this paper, a new procedure is proposed to calibrate the ...

Get PriceOct 29, 2016 Support vector machine regression (SVR) technique was used for predicting the uniaxial compressive strength of FRP confined concrete. Two different SVR models, viz. SVR model for carbon fiber reinforced polymer confined concrete and SVR model for glass fiber reinforced polymer confined concrete, were developed. The prediction efficacy of developed SVR models was compared with that of ANN and ...

Get PriceABSTRACT HU, HAO. Development of a New Constitutive Model for FRP-And-Steel-Confined Concrete. (Under the direction of Dr. Rudolf Seracino.) In the past 20 years,

Get Pricev 5.3 Prediction of Ultimate Load-carrying Capacity and Strain at Peak Strength for Columns Subjected to Concentric Axial Loading using the Modified SM Model for Core

Get PriceNov 20, 2020 ANN prediction of shear strength of concrete beam , gives confidence in using ANN tools to predict shear strength of properties of the concrete structures. The prediction of FRP—confined compressive strength of the concrete using artificial neural network with experimental data and its

Get PriceFeb 01, 2006 The comparison, which is carried out in terms of the confined to unconfined strengths, but also in terms of the gain in the load carrying capacity, considers the following parameters: The FRP confinement ratio, the unconfined concrete strength, and the elastic and mechanical properties of FRP.

Get PriceThe interfacial defects between FRP and concrete, commonly identified in FRP bonded concrete systems, cause shear stress concentration and stress redistribution and result in debonding at corresponding cross-section of columns [28,29,30].As the in-plane tensile stiffness of FRP is much higher than out-of-plane flexural stiffness, the interfacial defects tend to propagate in the hoop direction ...

Get Pricemechanical properties for different volume of fibre at 7 days and 28 days of curing. The prediction of strength using ANN approach was also discussed and compared. 2 EXPERIMENTAL STUDY The ingredients of concrete were studied properly to identify its properties of the ingredients. Table 1 presents the properties of the polypropylene fibres.

Get PriceAbstract: - The paper presents the capabilities of LUSAS software in predicting the structural behavior of FRP confined square columns by the use of the nonlinear concrete Drucker-Prager material model. The numerical modeling study was intended to accompany laboratory tests in describing the structural behavior of the

Get PriceT1 - Prediction of Mechanical Properties of Concrete Made with Recycled Concrete Aggregates Using Statistical Analysis of Data Available in Literature. AU - Jayasuriya, Anuruddha. AU - Chen, Tola. AU - Shibata, Emily. AU - Adams, Matthew P. PY - 2020/1/1. Y1 - 2020/1/1

Get PriceAfter widely reviewing the literature on FRP-confined concrete, variables such as the FRP type, the number of FRP layers, the concrete strength, and the cross-sectional shape and size were investigated extensively in these experimental programs, and the influence of spiral or transverse steel reinforcement was rarely considered. (see Fig. 3 ...

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