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Temperature effects on load transmission between slabs and shores

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Title: Temperature effects on load transmission between slabs and shores
Authors: Gasch, Isabel1, Alvarado, Yezid A. yealvar@upvnet.upv.es, Calderón, Pedro A.1
Source: Engineering Structures. Jun2012, Vol. 39, p89-102. 14p.
Subjects: Mechanical loads, Temperature effect, Founding, Finite element method, Surfaces (Technology), Experimental design
Abstract: Abstract: This paper analyses the influence of temperature changes on load transmission between floor slabs and shores during the in situ casting of concrete slabs by the shoring-clearing-striking method. Therefore several experimental studies were carried out which measured both the internal temperature evolution of the slabs and the loads on the shores. With the results of these studies, a Finite Element Model (FEM) of an experimental structure was then developed. In both the FEM and the experimental studies the same behaviour was observed regarding changes in temperature. When temperatures rose, the loads on shores decreased, accompanied by a reduction in slab deflection. When temperatures dropped, the loads on the shores increased, accompanied by an increased slab deflection. In the experimental study, for a temperature increment of ±1°C the load per surface unit on shores varied between 0.13kN/m2 and 0.34kN/m2, which represents between 2% and 6% of the self-weight of the slabs. The main cause of these load variations appears to be the temperature gradient inside the floor slabs. [Copyright &y& Elsevier]
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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Header DbId: egs
DbLabel: Engineering Source
An: 74110885
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Temperature effects on load transmission between slabs and shores
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  Data: <searchLink fieldCode="AR" term="%22Gasch%2C+Isabel%22">Gasch, Isabel</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Alvarado%2C+Yezid+A%2E%22">Alvarado, Yezid A.</searchLink><i> yealvar@upvnet.upv.es</i><br /><searchLink fieldCode="AR" term="%22Calderón%2C+Pedro+A%2E%22">Calderón, Pedro A.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Engineering+Structures%22">Engineering Structures</searchLink>. Jun2012, Vol. 39, p89-102. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Mechanical+loads%22">Mechanical loads</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+effect%22">Temperature effect</searchLink><br /><searchLink fieldCode="DE" term="%22Founding%22">Founding</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Surfaces+%28Technology%29%22">Surfaces (Technology)</searchLink><br /><searchLink fieldCode="DE" term="%22Experimental+design%22">Experimental design</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Abstract: This paper analyses the influence of temperature changes on load transmission between floor slabs and shores during the in situ casting of concrete slabs by the shoring-clearing-striking method. Therefore several experimental studies were carried out which measured both the internal temperature evolution of the slabs and the loads on the shores. With the results of these studies, a Finite Element Model (FEM) of an experimental structure was then developed. In both the FEM and the experimental studies the same behaviour was observed regarding changes in temperature. When temperatures rose, the loads on shores decreased, accompanied by a reduction in slab deflection. When temperatures dropped, the loads on the shores increased, accompanied by an increased slab deflection. In the experimental study, for a temperature increment of ±1°C the load per surface unit on shores varied between 0.13kN/m2 and 0.34kN/m2, which represents between 2% and 6% of the self-weight of the slabs. The main cause of these load variations appears to be the temperature gradient inside the floor slabs. [Copyright &y& Elsevier]
– 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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      – Type: doi
        Value: 10.1016/j.engstruct.2012.02.004
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      – Code: eng
        Text: English
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        PageCount: 14
        StartPage: 89
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      – SubjectFull: Mechanical loads
        Type: general
      – SubjectFull: Temperature effect
        Type: general
      – SubjectFull: Founding
        Type: general
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Surfaces (Technology)
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      – SubjectFull: Experimental design
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      – TitleFull: Temperature effects on load transmission between slabs and shores
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            NameFull: Alvarado, Yezid A.
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              M: 06
              Text: Jun2012
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              Y: 2012
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