Theoretical Model and Computational Procedure to Evaluate the NSM FRP Strips Shear Strength Contribution to a RC Beam.
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| Title: | Theoretical Model and Computational Procedure to Evaluate the NSM FRP Strips Shear Strength Contribution to a RC Beam. |
|---|---|
| Authors: | Bianco, Vincenzo1, Monti, Giorgio2, Barros, J. A. O.3 |
| Source: | Journal of Structural Engineering. Nov2011, Vol. 137 Issue 11, p1359-1372. 14p. 7 Diagrams, 1 Chart, 6 Graphs. |
| Subjects: | Shear (Mechanics), Structural engineering software, Structural engineering, Concrete beams, Polymers, Construction materials, Mathematical models |
| Abstract: | This paper presents a computational procedure to evaluate the shear strength contribution provided to a reinforced concrete (RC) beam by a system of near-surface mounted (NSM) fiber reinforced polymer (FRP) strips. This procedure is based on the evaluation of (1) the constitutive law of the average-available bond-length NSM FRP strip effectively crossing the shear crack, and (2) the maximum effective capacity it can attain during the loading process of the strengthened beam. Because of complex phenomena such as (1) interaction between forces transferred through bond to the surrounding concrete and the concrete fracture, and (2) interaction among adjacent strips, the NSM FRP strip constitutive law is largely different than the linear elastic one characterizing the FRP behavior in tension. Once the constitutive law of the average-available bond-length NSM strip is reliably known, its maximum effective capacity can be determined by imposing a coherent kinematic mechanism. The self-contained and ready-to-implement set of analytical equations and logical operations is presented along with the main underlying physical-mechanical principles and assumptions. The formulation proposed is appraised against some of the most recent experimental results, and its predictions are also compared with those obtained by a recently developed more sophisticated model. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Structural Engineering is the property of American Society of Civil Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 69734646 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Theoretical Model and Computational Procedure to Evaluate the NSM FRP Strips Shear Strength Contribution to a RC Beam. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Bianco%2C+Vincenzo%22">Bianco, Vincenzo</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Monti%2C+Giorgio%22">Monti, Giorgio</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Barros%2C+J%2E+A%2E+O%2E%22">Barros, J. A. O.</searchLink><relatesTo>3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Structural+Engineering%22">Journal of Structural Engineering</searchLink>. Nov2011, Vol. 137 Issue 11, p1359-1372. 14p. 7 Diagrams, 1 Chart, 6 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Shear+%28Mechanics%29%22">Shear (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+engineering+software%22">Structural engineering software</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+engineering%22">Structural engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Concrete+beams%22">Concrete beams</searchLink><br /><searchLink fieldCode="DE" term="%22Polymers%22">Polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Construction+materials%22">Construction materials</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematical+models%22">Mathematical models</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This paper presents a computational procedure to evaluate the shear strength contribution provided to a reinforced concrete (RC) beam by a system of near-surface mounted (NSM) fiber reinforced polymer (FRP) strips. This procedure is based on the evaluation of (1) the constitutive law of the average-available bond-length NSM FRP strip effectively crossing the shear crack, and (2) the maximum effective capacity it can attain during the loading process of the strengthened beam. Because of complex phenomena such as (1) interaction between forces transferred through bond to the surrounding concrete and the concrete fracture, and (2) interaction among adjacent strips, the NSM FRP strip constitutive law is largely different than the linear elastic one characterizing the FRP behavior in tension. Once the constitutive law of the average-available bond-length NSM strip is reliably known, its maximum effective capacity can be determined by imposing a coherent kinematic mechanism. The self-contained and ready-to-implement set of analytical equations and logical operations is presented along with the main underlying physical-mechanical principles and assumptions. The formulation proposed is appraised against some of the most recent experimental results, and its predictions are also compared with those obtained by a recently developed more sophisticated model. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Structural Engineering is the property of American Society of Civil Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1061/(ASCE)ST.1943-541X.0000370 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 1359 Subjects: – SubjectFull: Shear (Mechanics) Type: general – SubjectFull: Structural engineering software Type: general – SubjectFull: Structural engineering Type: general – SubjectFull: Concrete beams Type: general – SubjectFull: Polymers Type: general – SubjectFull: Construction materials Type: general – SubjectFull: Mathematical models Type: general Titles: – TitleFull: Theoretical Model and Computational Procedure to Evaluate the NSM FRP Strips Shear Strength Contribution to a RC Beam. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Bianco, Vincenzo – PersonEntity: Name: NameFull: Monti, Giorgio – PersonEntity: Name: NameFull: Barros, J. A. O. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2011 Type: published Y: 2011 Identifiers: – Type: issn-print Value: 07339445 Numbering: – Type: volume Value: 137 – Type: issue Value: 11 Titles: – TitleFull: Journal of Structural Engineering Type: main |
| ResultId | 1 |
