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Avoiding failures during building construction using structural fuses as load limiters on temporary shoring structures.

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Title: Avoiding failures during building construction using structural fuses as load limiters on temporary shoring structures.
Authors: Buitrago, Manuel1 (AUTHOR), Sagaseta, Juan1,2 (AUTHOR) j.sagaseta@surrey.ac.uk, Adam, Jose M.1 (AUTHOR)
Source: Engineering Structures. Feb2020, Vol. 204, pN.PAG-N.PAG. 1p.
Subjects: Building failures, Building design & construction, Structural failures, Finite element method, Progressive collapse, Temporary stores
Abstract: • Load limiters (LL) to shoring systems in construction were investigated. • FE models were carried out of a RC building with and without LL. • Two local failure scenarios were investigated representing accidental events. • With LL, the residual damage was reduced due to the activation of more shores. • The risk of failure of the temporary structure was mitigated using LL. The risk of structural failure of buildings can be significant during construction. Temporary adjustable telescopic steel shores or props are commonly used in building construction. The failure of shores is sudden and therefore structural fuses as load limiters (LL) can be introduced to provide ductility in the temporary member for a specified limit failure load. Previous work by the authors showed that the design of shoring systems can be improved using LL for standard cases of imposed loads applied during construction. This paper extends this work to cases of accidental loading where the shoring system-permanent structure interaction is less known. The main principles of LLs are discussed and implemented in advanced numerical simulations of a real case RC building during construction by means of explicit nonlinear dynamic finite element analyses. Different local failure scenarios were investigated corresponding to cases observed in practice. The comparison of the numerical results obtained with and without LLs demonstrated for the first time the benefits of using LLs in terms of: (a) mitigating the risk of failure of the temporary structure; and (b) reducing permanent damage (cracking and short-term deflections in the slab) affecting the durability and functionality of the building. [ABSTRACT FROM AUTHOR]
Copyright of Engineering Structures 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
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  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 140919949
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Avoiding failures during building construction using structural fuses as load limiters on temporary shoring structures.
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  Data: <searchLink fieldCode="AR" term="%22Buitrago%2C+Manuel%22">Buitrago, Manuel</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sagaseta%2C+Juan%22">Sagaseta, Juan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> j.sagaseta@surrey.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Adam%2C+Jose+M%2E%22">Adam, Jose M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Engineering+Structures%22">Engineering Structures</searchLink>. Feb2020, Vol. 204, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Building+failures%22">Building failures</searchLink><br /><searchLink fieldCode="DE" term="%22Building+design+%26+construction%22">Building design & construction</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+failures%22">Structural failures</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Progressive+collapse%22">Progressive collapse</searchLink><br /><searchLink fieldCode="DE" term="%22Temporary+stores%22">Temporary stores</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: • Load limiters (LL) to shoring systems in construction were investigated. • FE models were carried out of a RC building with and without LL. • Two local failure scenarios were investigated representing accidental events. • With LL, the residual damage was reduced due to the activation of more shores. • The risk of failure of the temporary structure was mitigated using LL. The risk of structural failure of buildings can be significant during construction. Temporary adjustable telescopic steel shores or props are commonly used in building construction. The failure of shores is sudden and therefore structural fuses as load limiters (LL) can be introduced to provide ductility in the temporary member for a specified limit failure load. Previous work by the authors showed that the design of shoring systems can be improved using LL for standard cases of imposed loads applied during construction. This paper extends this work to cases of accidental loading where the shoring system-permanent structure interaction is less known. The main principles of LLs are discussed and implemented in advanced numerical simulations of a real case RC building during construction by means of explicit nonlinear dynamic finite element analyses. Different local failure scenarios were investigated corresponding to cases observed in practice. The comparison of the numerical results obtained with and without LLs demonstrated for the first time the benefits of using LLs in terms of: (a) mitigating the risk of failure of the temporary structure; and (b) reducing permanent damage (cracking and short-term deflections in the slab) affecting the durability and functionality of the building. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Engineering Structures 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.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.engstruct.2019.109906
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      – Code: eng
        Text: English
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        StartPage: N.PAG
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      – SubjectFull: Building failures
        Type: general
      – SubjectFull: Building design & construction
        Type: general
      – SubjectFull: Structural failures
        Type: general
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Progressive collapse
        Type: general
      – SubjectFull: Temporary stores
        Type: general
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      – TitleFull: Avoiding failures during building construction using structural fuses as load limiters on temporary shoring structures.
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              Text: Feb2020
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              Y: 2020
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