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Self-centering MRFs with bottom flange friction devices under earthquake loading

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Title: Self-centering MRFs with bottom flange friction devices under earthquake loading
Authors: Iyama, J.1,2 iyama@arch.t.u-tokyo.ac.jp, Seo, C-Y.2, Ricles, J.M.2, Sause, R.2
Source: Journal of Constructional Steel Research. Feb2009, Vol. 65 Issue 2, p314-325. 12p.
Subjects: Structural frames, Building material testing, Energy dissipation, Strains & stresses (Mechanics), Mechanical buckling, Earthquake resistant design
Abstract: Abstract: A bottom flange friction device (BFFD) has been developed as an energy dissipation device for self-centering post-tensioned steel beam-to-column connections for moment-resisting frames (MRFs). The BFFD is located beneath the beam to avoid interference with a floor slab. Since the BFFD is attached to only one flange, a connection with a BFFD has an asymmetric behavior with different positive and negative moment capacities. To investigate the behavior of a self-centering MRF with BFFDs, static and dynamic analyses were performed, and the results were compared to those of a similar frame with connections that have a symmetric behavior. It was found that the asymmetric behavior of the MRF with BFFDs leads to increased inelastic strain in the beam top flange, which may lead to beam flange buckling. These inelastic strains can be reduced by using longer top flange reinforcing plates. [Copyright &y& Elsevier]
Copyright of Journal of Constructional Steel Research is the property of Elsevier B.V. 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 Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 35560111
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Self-centering MRFs with bottom flange friction devices under earthquake loading
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  Data: <searchLink fieldCode="AR" term="%22Iyama%2C+J%2E%22">Iyama, J.</searchLink><relatesTo>1,2</relatesTo><i> iyama@arch.t.u-tokyo.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Seo%2C+C-Y%2E%22">Seo, C-Y.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Ricles%2C+J%2EM%2E%22">Ricles, J.M.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Sause%2C+R%2E%22">Sause, R.</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Constructional+Steel+Research%22">Journal of Constructional Steel Research</searchLink>. Feb2009, Vol. 65 Issue 2, p314-325. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Structural+frames%22">Structural frames</searchLink><br /><searchLink fieldCode="DE" term="%22Building+material+testing%22">Building material testing</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+dissipation%22">Energy dissipation</searchLink><br /><searchLink fieldCode="DE" term="%22Strains+%26+stresses+%28Mechanics%29%22">Strains & stresses (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+buckling%22">Mechanical buckling</searchLink><br /><searchLink fieldCode="DE" term="%22Earthquake+resistant+design%22">Earthquake resistant design</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: A bottom flange friction device (BFFD) has been developed as an energy dissipation device for self-centering post-tensioned steel beam-to-column connections for moment-resisting frames (MRFs). The BFFD is located beneath the beam to avoid interference with a floor slab. Since the BFFD is attached to only one flange, a connection with a BFFD has an asymmetric behavior with different positive and negative moment capacities. To investigate the behavior of a self-centering MRF with BFFDs, static and dynamic analyses were performed, and the results were compared to those of a similar frame with connections that have a symmetric behavior. It was found that the asymmetric behavior of the MRF with BFFDs leads to increased inelastic strain in the beam top flange, which may lead to beam flange buckling. These inelastic strains can be reduced by using longer top flange reinforcing plates. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Constructional Steel Research is the property of Elsevier B.V. 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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=35560111
RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.jcsr.2008.02.018
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      – Code: eng
        Text: English
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        PageCount: 12
        StartPage: 314
    Subjects:
      – SubjectFull: Structural frames
        Type: general
      – SubjectFull: Building material testing
        Type: general
      – SubjectFull: Energy dissipation
        Type: general
      – SubjectFull: Strains & stresses (Mechanics)
        Type: general
      – SubjectFull: Mechanical buckling
        Type: general
      – SubjectFull: Earthquake resistant design
        Type: general
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      – TitleFull: Self-centering MRFs with bottom flange friction devices under earthquake loading
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            NameFull: Seo, C-Y.
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            NameFull: Ricles, J.M.
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            NameFull: Sause, R.
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              Text: Feb2009
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              Y: 2009
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