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Experimental cyclic testing of masonry pier-spandrel substructures reinforced with engineered cementitious composites overlay.

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Title: Experimental cyclic testing of masonry pier-spandrel substructures reinforced with engineered cementitious composites overlay.
Authors: Li, Tong1 (AUTHOR) tongli@xauat.edu.cn, Zhang, Wei2 (AUTHOR), Qiu, Zhengtao1 (AUTHOR), Yang, Shuo3 (AUTHOR), Zhang, Yangxi1 (AUTHOR), Deng, Mingke1 (AUTHOR)
Source: Bulletin of Earthquake Engineering. Nov2024, Vol. 22 Issue 14, p7179-7200. 22p.
Subject Terms: *Cyclic loads, *Masonry testing, *Lateral loads, *Energy dissipation, *Failure mode & effects analysis
Abstract: This paper experimentally investigated the in-plane seismic behavior of perforated masonry walls (pier-spandrel substructures) retrofitted using engineered cementitious composites (ECC). One unreinforced masonry (URM) specimen and two ECC-reinforced masonry substructures were prepared and subjected to pseudostatic cyclic lateral loads. The failure mode, hysteretic curves, strength, deformability, stiffness, and energy dissipation capacity of three specimens were compared and discussed. The results revealed that the failure pattern of masonry pier-spandrel substructure was improved by the ECC layer with shear failure of masonry piers changing to bending failure. Multiple thin cracks were observed on the surface of ECC overlay. Moreover, the external ECC layer effectively increased the load-carrying capacity and ultimate deformation of the substructures, with maximum increases of 104% in strength and 72% in ultimate displacement, respectively. Finally, the excellent energy dissipation capacity was obtained by ECC overlay, which can improve the collapse resistance of masonry structures subjected to strong earthquake action. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 180849956
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Experimental cyclic testing of masonry pier-spandrel substructures reinforced with engineered cementitious composites overlay.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Tong%22">Li, Tong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> tongli@xauat.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Wei%22">Zhang, Wei</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Qiu%2C+Zhengtao%22">Qiu, Zhengtao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Shuo%22">Yang, Shuo</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Yangxi%22">Zhang, Yangxi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Deng%2C+Mingke%22">Deng, Mingke</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Bulletin+of+Earthquake+Engineering%22">Bulletin of Earthquake Engineering</searchLink>. Nov2024, Vol. 22 Issue 14, p7179-7200. 22p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Cyclic+loads%22">Cyclic loads</searchLink><br />*<searchLink fieldCode="DE" term="%22Masonry+testing%22">Masonry testing</searchLink><br />*<searchLink fieldCode="DE" term="%22Lateral+loads%22">Lateral loads</searchLink><br />*<searchLink fieldCode="DE" term="%22Energy+dissipation%22">Energy dissipation</searchLink><br />*<searchLink fieldCode="DE" term="%22Failure+mode+%26+effects+analysis%22">Failure mode & effects analysis</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper experimentally investigated the in-plane seismic behavior of perforated masonry walls (pier-spandrel substructures) retrofitted using engineered cementitious composites (ECC). One unreinforced masonry (URM) specimen and two ECC-reinforced masonry substructures were prepared and subjected to pseudostatic cyclic lateral loads. The failure mode, hysteretic curves, strength, deformability, stiffness, and energy dissipation capacity of three specimens were compared and discussed. The results revealed that the failure pattern of masonry pier-spandrel substructure was improved by the ECC layer with shear failure of masonry piers changing to bending failure. Multiple thin cracks were observed on the surface of ECC overlay. Moreover, the external ECC layer effectively increased the load-carrying capacity and ultimate deformation of the substructures, with maximum increases of 104% in strength and 72% in ultimate displacement, respectively. Finally, the excellent energy dissipation capacity was obtained by ECC overlay, which can improve the collapse resistance of masonry structures subjected to strong earthquake action. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1007/s10518-024-02044-2
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 22
        StartPage: 7179
    Subjects:
      – SubjectFull: Cyclic loads
        Type: general
      – SubjectFull: Masonry testing
        Type: general
      – SubjectFull: Lateral loads
        Type: general
      – SubjectFull: Energy dissipation
        Type: general
      – SubjectFull: Failure mode & effects analysis
        Type: general
    Titles:
      – TitleFull: Experimental cyclic testing of masonry pier-spandrel substructures reinforced with engineered cementitious composites overlay.
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            NameFull: Li, Tong
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            NameFull: Zhang, Wei
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            NameFull: Yang, Shuo
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            NameFull: Zhang, Yangxi
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            NameFull: Deng, Mingke
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            – D: 15
              M: 11
              Text: Nov2024
              Type: published
              Y: 2024
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              Value: 22
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              Value: 14
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            – TitleFull: Bulletin of Earthquake Engineering
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