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Bond-slip model for coarse sand coated interface between FRP and concrete from optimization technique

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Title: Bond-slip model for coarse sand coated interface between FRP and concrete from optimization technique
Authors: Cho, Keunhee kcho@kict.re.kr, Cho, Jeong-Rae1, Chin, Won-Jong1, Kim, Byung-Suk1
Source: Computers & Structures. Mar2006, Vol. 84 Issue 7, p439-449. 11p.
Subjects: Interfaces (Physical sciences), Mathematical optimization, Composite construction, Concrete
Abstract: Abstract: Innovative FRP–concrete composite bridge deck systems fabricated by casting concrete above FRP panel have been proposed and have already been implemented actually. In such deck systems, the FRP panel plays the role of formwork during the curing of concrete and behaves as a structural member combined with concrete during service life. Coarse sand coating is usually applied to secure composite behavior of the two materials instead of epoxy bonding, which is extensively used for retrofit purpose of deteriorated structures. This study focuses on investigating the bond behavior of coarse sand coating experimentally and analytically. Pure shear tests on coarse sand coated and epoxy coated joints are performed from which results are used to extract the bond-slip model. A method to obtain the bond-slip model from pure shear test is proposed, in which analytic solution of bond-slip model based on fracture mechanics is introduced and physical programming technique is used for formulation. Genetic algorithm is adopted for the optimization. Application of the proposed method produces local bond-slip model for coarse sand coating. Finally, in order to verify the proposed method and local bond-slip model, 4-point bending test of beam specimens with coarse sand coated FRP plate is performed and the result is compared to finite element analysis including the proposed local bond-slip model. [Copyright &y& Elsevier]
Copyright of Computers & Structures is the property of Pergamon Press - An Imprint of Elsevier Science 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
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Header DbId: egs
DbLabel: Engineering Source
An: 19406779
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Bond-slip model for coarse sand coated interface between FRP and concrete from optimization technique
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Cho%2C+Keunhee%22">Cho, Keunhee</searchLink><i> kcho@kict.re.kr</i><br /><searchLink fieldCode="AR" term="%22Cho%2C+Jeong-Rae%22">Cho, Jeong-Rae</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Chin%2C+Won-Jong%22">Chin, Won-Jong</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kim%2C+Byung-Suk%22">Kim, Byung-Suk</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Computers+%26+Structures%22">Computers & Structures</searchLink>. Mar2006, Vol. 84 Issue 7, p439-449. 11p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Interfaces+%28Physical+sciences%29%22">Interfaces (Physical sciences)</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematical+optimization%22">Mathematical optimization</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+construction%22">Composite construction</searchLink><br /><searchLink fieldCode="DE" term="%22Concrete%22">Concrete</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: Innovative FRP–concrete composite bridge deck systems fabricated by casting concrete above FRP panel have been proposed and have already been implemented actually. In such deck systems, the FRP panel plays the role of formwork during the curing of concrete and behaves as a structural member combined with concrete during service life. Coarse sand coating is usually applied to secure composite behavior of the two materials instead of epoxy bonding, which is extensively used for retrofit purpose of deteriorated structures. This study focuses on investigating the bond behavior of coarse sand coating experimentally and analytically. Pure shear tests on coarse sand coated and epoxy coated joints are performed from which results are used to extract the bond-slip model. A method to obtain the bond-slip model from pure shear test is proposed, in which analytic solution of bond-slip model based on fracture mechanics is introduced and physical programming technique is used for formulation. Genetic algorithm is adopted for the optimization. Application of the proposed method produces local bond-slip model for coarse sand coating. Finally, in order to verify the proposed method and local bond-slip model, 4-point bending test of beam specimens with coarse sand coated FRP plate is performed and the result is compared to finite element analysis including the proposed local bond-slip model. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Computers & Structures is the property of Pergamon Press - An Imprint of Elsevier Science 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: 10.1016/j.compstruc.2005.10.004
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 439
    Subjects:
      – SubjectFull: Interfaces (Physical sciences)
        Type: general
      – SubjectFull: Mathematical optimization
        Type: general
      – SubjectFull: Composite construction
        Type: general
      – SubjectFull: Concrete
        Type: general
    Titles:
      – TitleFull: Bond-slip model for coarse sand coated interface between FRP and concrete from optimization technique
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            NameFull: Cho, Keunhee
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            NameFull: Cho, Jeong-Rae
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            NameFull: Chin, Won-Jong
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            NameFull: Kim, Byung-Suk
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          Dates:
            – D: 06
              M: 03
              Text: Mar2006
              Type: published
              Y: 2006
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              Value: 84
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              Value: 7
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            – TitleFull: Computers & Structures
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