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Evaluating progressive collapse in multi-story buildings: Influence of slabs and building height.

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Title: Evaluating progressive collapse in multi-story buildings: Influence of slabs and building height.
Authors: Mohieldin, Omair1 (AUTHOR), Jadallah, Muneeb1 (AUTHOR), Cicos, Cem1 (AUTHOR), Mehdi, Fikret1 (AUTHOR), Sağıroğlu, Serkan1 (AUTHOR), Doğangün, Adem1 (AUTHOR) adogangun@uludag.edu.tr
Source: Advances in Structural Engineering. Jun2026, Vol. 29 Issue 8, p1606-1628. 23p.
Subjects: Progressive collapse, Concrete slabs, Structural components, Multipurpose buildings, Tall buildings, Reinforcing bars, Structural analysis (Engineering)
Abstract: The loss of a load-bearing element, in a building can occur due to various factors and may trigger progressive collapse. The partial collapse of the Ronan Point Apartment in 1968 greatly increased awareness of progressive collapse, which is reflected in the growing number of related publications. This study investigates the progressive collapse behavior of multi-story buildings with and without slabs. In the models without slabs, the load that is expected to be transferred from the slabs to the beams was externally applied to the beams. Additionally, the study considers five different building heights, and evaluates the results based on UFC guidelines. More than 240 removal scenarios, covering six different locations on the building plan and varying story heights, were simulated using the ELS software. The results show that as the number of stories increases, displacements due to column removal generally decrease. Buildings designed to withstand seismic forces demonstrated efficient resistance to progressive collapse, with no significant plastic rotations observed, provided the slab contribution was included in the model. In contrast, models without slabs experienced collapse in all scenarios. This study highlights the importance of including slab contributions in simulations, as neglecting them can lead to inaccurate results. Furthermore, after the loss of a column, initial failure was often observed at the end of the top reinforcement in the beams connected to the removed column. By extending the length of the top reinforcement in the beams, the location of the initial failure shifts to the face of the adjacent column. [ABSTRACT FROM AUTHOR]
Copyright of Advances in Structural Engineering is the property of Sage Publications Inc. 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: 193926137
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Evaluating progressive collapse in multi-story buildings: Influence of slabs and building height.
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  Data: <searchLink fieldCode="AR" term="%22Mohieldin%2C+Omair%22">Mohieldin, Omair</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jadallah%2C+Muneeb%22">Jadallah, Muneeb</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cicos%2C+Cem%22">Cicos, Cem</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mehdi%2C+Fikret%22">Mehdi, Fikret</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sağıroğlu%2C+Serkan%22">Sağıroğlu, Serkan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Doğangün%2C+Adem%22">Doğangün, Adem</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> adogangun@uludag.edu.tr</i>
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  Data: <searchLink fieldCode="JN" term="%22Advances+in+Structural+Engineering%22">Advances in Structural Engineering</searchLink>. Jun2026, Vol. 29 Issue 8, p1606-1628. 23p.
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  Data: <searchLink fieldCode="DE" term="%22Progressive+collapse%22">Progressive collapse</searchLink><br /><searchLink fieldCode="DE" term="%22Concrete+slabs%22">Concrete slabs</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+components%22">Structural components</searchLink><br /><searchLink fieldCode="DE" term="%22Multipurpose+buildings%22">Multipurpose buildings</searchLink><br /><searchLink fieldCode="DE" term="%22Tall+buildings%22">Tall buildings</searchLink><br /><searchLink fieldCode="DE" term="%22Reinforcing+bars%22">Reinforcing bars</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+analysis+%28Engineering%29%22">Structural analysis (Engineering)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The loss of a load-bearing element, in a building can occur due to various factors and may trigger progressive collapse. The partial collapse of the Ronan Point Apartment in 1968 greatly increased awareness of progressive collapse, which is reflected in the growing number of related publications. This study investigates the progressive collapse behavior of multi-story buildings with and without slabs. In the models without slabs, the load that is expected to be transferred from the slabs to the beams was externally applied to the beams. Additionally, the study considers five different building heights, and evaluates the results based on UFC guidelines. More than 240 removal scenarios, covering six different locations on the building plan and varying story heights, were simulated using the ELS software. The results show that as the number of stories increases, displacements due to column removal generally decrease. Buildings designed to withstand seismic forces demonstrated efficient resistance to progressive collapse, with no significant plastic rotations observed, provided the slab contribution was included in the model. In contrast, models without slabs experienced collapse in all scenarios. This study highlights the importance of including slab contributions in simulations, as neglecting them can lead to inaccurate results. Furthermore, after the loss of a column, initial failure was often observed at the end of the top reinforcement in the beams connected to the removed column. By extending the length of the top reinforcement in the beams, the location of the initial failure shifts to the face of the adjacent column. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Advances in Structural Engineering is the property of Sage Publications Inc. 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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        Value: 10.1177/13694332251383309
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        Text: English
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        PageCount: 23
        StartPage: 1606
    Subjects:
      – SubjectFull: Progressive collapse
        Type: general
      – SubjectFull: Concrete slabs
        Type: general
      – SubjectFull: Structural components
        Type: general
      – SubjectFull: Multipurpose buildings
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      – SubjectFull: Tall buildings
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      – SubjectFull: Reinforcing bars
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      – SubjectFull: Structural analysis (Engineering)
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      – TitleFull: Evaluating progressive collapse in multi-story buildings: Influence of slabs and building height.
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            NameFull: Mohieldin, Omair
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            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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