Symbolic Regression Model for Predicting Compression Strength of Prismatic Masonry Columns Confined by FRP

The use of Fiber Reinforced Polymer (FRP) materials for the external confinement of existing concrete or masonry members is now an established technical solution. Several studies in the scientific literature show how FRP wrapping can improve the mechanical properties of members. Though there are num...

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Main Authors: Khalid Saqer Alotaibi, A. B. M. Saiful Islam
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/13/2/509
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author Khalid Saqer Alotaibi
A. B. M. Saiful Islam
author_facet Khalid Saqer Alotaibi
A. B. M. Saiful Islam
author_sort Khalid Saqer Alotaibi
collection DOAJ
description The use of Fiber Reinforced Polymer (FRP) materials for the external confinement of existing concrete or masonry members is now an established technical solution. Several studies in the scientific literature show how FRP wrapping can improve the mechanical properties of members. Though there are numerous methods for determining the compressive strength of FRP confined concrete, no generalized formulae are available because of the greater complexity and heterogeneity of FRP-confined masonry. There are two main objectives in this analytical study: (a) proposing an entirely new mathematical expression to estimate the compressive strength of FRP confined masonry columns using symbolic regression model approach which can outperform traditional regression models, and (b) evaluating existing formulas. Over 198 tests of FRP wrapped masonry were compiled in a database and used to train the model. Several formulations from the published literature and international guidelines have been compared against experimental data. It is observed that the proposed symbolic regression model shows excellent performance compared to the existing models. The model is easier, has no restriction and thereby it can be feasibly employed to foresee the behavior of FRP confined masonry elements. The coefficient of determination for the proposed symbolic regression model is determined as 0.91.
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spelling doaj.art-0fbae40bda5249b68fa06e0b94eef4172023-11-16T19:33:43ZengMDPI AGBuildings2075-53092023-02-0113250910.3390/buildings13020509Symbolic Regression Model for Predicting Compression Strength of Prismatic Masonry Columns Confined by FRPKhalid Saqer Alotaibi0A. B. M. Saiful Islam1Department of Civil and Construction Engineering, College of Engineering, Imam Abdulrahman Bin Faisal University, Dammam 31451, Saudi ArabiaDepartment of Civil and Construction Engineering, College of Engineering, Imam Abdulrahman Bin Faisal University, Dammam 31451, Saudi ArabiaThe use of Fiber Reinforced Polymer (FRP) materials for the external confinement of existing concrete or masonry members is now an established technical solution. Several studies in the scientific literature show how FRP wrapping can improve the mechanical properties of members. Though there are numerous methods for determining the compressive strength of FRP confined concrete, no generalized formulae are available because of the greater complexity and heterogeneity of FRP-confined masonry. There are two main objectives in this analytical study: (a) proposing an entirely new mathematical expression to estimate the compressive strength of FRP confined masonry columns using symbolic regression model approach which can outperform traditional regression models, and (b) evaluating existing formulas. Over 198 tests of FRP wrapped masonry were compiled in a database and used to train the model. Several formulations from the published literature and international guidelines have been compared against experimental data. It is observed that the proposed symbolic regression model shows excellent performance compared to the existing models. The model is easier, has no restriction and thereby it can be feasibly employed to foresee the behavior of FRP confined masonry elements. The coefficient of determination for the proposed symbolic regression model is determined as 0.91.https://www.mdpi.com/2075-5309/13/2/509fiber reinforced polymerstrengthconfinementsymbolic regression modelmasonrygenetic programming
spellingShingle Khalid Saqer Alotaibi
A. B. M. Saiful Islam
Symbolic Regression Model for Predicting Compression Strength of Prismatic Masonry Columns Confined by FRP
Buildings
fiber reinforced polymer
strength
confinement
symbolic regression model
masonry
genetic programming
title Symbolic Regression Model for Predicting Compression Strength of Prismatic Masonry Columns Confined by FRP
title_full Symbolic Regression Model for Predicting Compression Strength of Prismatic Masonry Columns Confined by FRP
title_fullStr Symbolic Regression Model for Predicting Compression Strength of Prismatic Masonry Columns Confined by FRP
title_full_unstemmed Symbolic Regression Model for Predicting Compression Strength of Prismatic Masonry Columns Confined by FRP
title_short Symbolic Regression Model for Predicting Compression Strength of Prismatic Masonry Columns Confined by FRP
title_sort symbolic regression model for predicting compression strength of prismatic masonry columns confined by frp
topic fiber reinforced polymer
strength
confinement
symbolic regression model
masonry
genetic programming
url https://www.mdpi.com/2075-5309/13/2/509
work_keys_str_mv AT khalidsaqeralotaibi symbolicregressionmodelforpredictingcompressionstrengthofprismaticmasonrycolumnsconfinedbyfrp
AT abmsaifulislam symbolicregressionmodelforpredictingcompressionstrengthofprismaticmasonrycolumnsconfinedbyfrp