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The effect of load induced thermal strain on flat slab behaviour at elevated 1 temperatures
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Al Hamd, Rwayda Kh. S. , Gillie, Martin, Warren, Holly, Torelli, Giacomo, Stratford, Tim and Wang, Yong (2018) The effect of load induced thermal strain on flat slab behaviour at elevated 1 temperatures. Fire Safety Journal, 97 . pp. 12-18. doi:10.1016/j.firesaf.2018.02.004
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Official URL: https://doi.org/10.1016/j.firesaf.2018.02.004
Abstract
Several recent sets of experimental results on the punching shear behaviour of flat slabs in fire have produced apparently anomalous deflections results, where the slab deflections on heating are in the opposite direction to that expected if arising from free thermal expansion. Using numerical analysis, this paper shows that the results are explained by load-induced thermal strains (LITS). Using two independent modelling approaches, the profound effect of LITS on deflection behaviour is demonstrated. The findings have implications for the design of flat-slab structures to resist fire because ignoring LITS may result in non-conservative design predictions.
| Item Type: | Journal Article | ||||||||
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| Subjects: | T Technology > TH Building construction | ||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
| Library of Congress Subject Headings (LCSH): | Buildings, Reinforced concrete -- Fire testing, Office buildings -- Fire testing | ||||||||
| Journal or Publication Title: | Fire Safety Journal | ||||||||
| Publisher: | Pergamon | ||||||||
| ISSN: | 0379-7112 | ||||||||
| Official Date: | April 2018 | ||||||||
| Dates: |
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| Volume: | 97 | ||||||||
| Page Range: | pp. 12-18 | ||||||||
| DOI: | 10.1016/j.firesaf.2018.02.004 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| RIOXX Funder/Project Grant: |
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