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Seismic behavior of reinforced concrete frame infilled with insulated integrated wall panel.

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Title: Seismic behavior of reinforced concrete frame infilled with insulated integrated wall panel.
Authors: Hou, Chongchi1 (AUTHOR) chongchihou@sjzu.edu.cn, Wang, Kaixuan1 (AUTHOR) flyfishno78@163.com, Wang, Qinghe1 (AUTHOR) wangqinghe@sjzu.edu.cn, Si, Jinlong2 (AUTHOR) longjunsicseb@163.com, Guo, Xiaohong2 (AUTHOR) xiaohongguocseb@163.com
Source: Structural Concrete. Apr2026, Vol. 27 Issue 2, p1971-1994. 24p.
Subjects: Reinforced concrete, Structural panels, Seismic response, Ductility, Lateral loads, Joints (Engineering), Prefabricated buildings
Abstract: The techniques of prefabricated building components have been popularized and utilized for years. To improve the installation efficiency and prompt the application of assembly buildings, this paper proposed a modified type of insulated integrated wall panel. For this type of insulated integrated wall panel, the mechanical behavior of connection joints, seismic performance, and horizontal capacity calculation methods were investigated and analyzed. First, to ensure the accuracy of the numerical simulation, three quasi‐static tests of frames were reproduced, and the parameter settings were spread to the subsequent numerical simulation. Then, an infilled reinforced concrete (RC) frame with concrete wallboard was designed to check the strength of connection joints under combination loads. Moreover, the effects of concrete strength, wall thickness, axial compression ratio, and longitudinal reinforcement form on the seismic performance of 13 specimens were investigated. Test results showed that the wall thickness and longitudinal reinforcement are positive for the horizontal bearing capacity and ductility, while the concrete strength is negative for the ductility. The horizontal bearing capacity of the infilled wall panel rose by 15% when wall thickness increased by 20 mm, and it increased by 13% when concrete strength increased by 10%. Compared with the pure concrete wallboards, the reinforced wall panel with the minimum reinforcement ratio (0.2%) has the growth of 9% in horizontal bearing capacity and 18% in ductility. Furthermore, based on the iterative method of the softened strut‐and‐tie model, this paper proposed a revised simplified method to predict the horizontal bearing capacity of the wallboard infilled frame. The calculated results of the revised simplified method exhibited good correctness within 8% error. Therefore, this paper can provide references for the design of integrated insulated wall panels. [ABSTRACT FROM AUTHOR]
Copyright of Structural Concrete is the property of Wiley-Blackwell 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: 193366504
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Seismic behavior of reinforced concrete frame infilled with insulated integrated wall panel.
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  Data: <searchLink fieldCode="AR" term="%22Hou%2C+Chongchi%22">Hou, Chongchi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chongchihou@sjzu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Kaixuan%22">Wang, Kaixuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> flyfishno78@163.com</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Qinghe%22">Wang, Qinghe</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> wangqinghe@sjzu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Si%2C+Jinlong%22">Si, Jinlong</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> longjunsicseb@163.com</i><br /><searchLink fieldCode="AR" term="%22Guo%2C+Xiaohong%22">Guo, Xiaohong</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> xiaohongguocseb@163.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Structural+Concrete%22">Structural Concrete</searchLink>. Apr2026, Vol. 27 Issue 2, p1971-1994. 24p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Reinforced+concrete%22">Reinforced concrete</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+panels%22">Structural panels</searchLink><br /><searchLink fieldCode="DE" term="%22Seismic+response%22">Seismic response</searchLink><br /><searchLink fieldCode="DE" term="%22Ductility%22">Ductility</searchLink><br /><searchLink fieldCode="DE" term="%22Lateral+loads%22">Lateral loads</searchLink><br /><searchLink fieldCode="DE" term="%22Joints+%28Engineering%29%22">Joints (Engineering)</searchLink><br /><searchLink fieldCode="DE" term="%22Prefabricated+buildings%22">Prefabricated buildings</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The techniques of prefabricated building components have been popularized and utilized for years. To improve the installation efficiency and prompt the application of assembly buildings, this paper proposed a modified type of insulated integrated wall panel. For this type of insulated integrated wall panel, the mechanical behavior of connection joints, seismic performance, and horizontal capacity calculation methods were investigated and analyzed. First, to ensure the accuracy of the numerical simulation, three quasi‐static tests of frames were reproduced, and the parameter settings were spread to the subsequent numerical simulation. Then, an infilled reinforced concrete (RC) frame with concrete wallboard was designed to check the strength of connection joints under combination loads. Moreover, the effects of concrete strength, wall thickness, axial compression ratio, and longitudinal reinforcement form on the seismic performance of 13 specimens were investigated. Test results showed that the wall thickness and longitudinal reinforcement are positive for the horizontal bearing capacity and ductility, while the concrete strength is negative for the ductility. The horizontal bearing capacity of the infilled wall panel rose by 15% when wall thickness increased by 20 mm, and it increased by 13% when concrete strength increased by 10%. Compared with the pure concrete wallboards, the reinforced wall panel with the minimum reinforcement ratio (0.2%) has the growth of 9% in horizontal bearing capacity and 18% in ductility. Furthermore, based on the iterative method of the softened strut‐and‐tie model, this paper proposed a revised simplified method to predict the horizontal bearing capacity of the wallboard infilled frame. The calculated results of the revised simplified method exhibited good correctness within 8% error. Therefore, this paper can provide references for the design of integrated insulated wall panels. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Structural Concrete is the property of Wiley-Blackwell 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: 10.1002/suco.70267
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 24
        StartPage: 1971
    Subjects:
      – SubjectFull: Reinforced concrete
        Type: general
      – SubjectFull: Structural panels
        Type: general
      – SubjectFull: Seismic response
        Type: general
      – SubjectFull: Ductility
        Type: general
      – SubjectFull: Lateral loads
        Type: general
      – SubjectFull: Joints (Engineering)
        Type: general
      – SubjectFull: Prefabricated buildings
        Type: general
    Titles:
      – TitleFull: Seismic behavior of reinforced concrete frame infilled with insulated integrated wall panel.
        Type: main
  BibRelationships:
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      – PersonEntity:
          Name:
            NameFull: Hou, Chongchi
      – PersonEntity:
          Name:
            NameFull: Wang, Kaixuan
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            NameFull: Wang, Qinghe
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            NameFull: Si, Jinlong
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            NameFull: Guo, Xiaohong
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            – D: 01
              M: 04
              Text: Apr2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 14644177
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            – Type: volume
              Value: 27
            – Type: issue
              Value: 2
          Titles:
            – TitleFull: Structural Concrete
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