Review of the punching shear behavior of concrete flat slabs in ambient and elevated temperature

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DOIResolve DOI: http://doi.org/10.1260/2040-2317.4.4.259
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TypeArticle
Journal titleJournal of Structural Fire Engineering
ISSN2040-2317
Volume4
Issue4
Pages259279; # of pages: 21
SubjectElevated temperature; Fire safety; Flat slabs; Punching shear; Punching shear capacity; Punching shear strength; Slab-column connection; State-of-the art reviews; Columns (structural); Fires; Office buildings; Reinforced concrete; Concretes
AbstractThere are a number of benefits associated with two-way concrete flat slab construction for office buildings, parking garages and apartments - for example, reduced formwork, prompt erection, flexibility of partitions, and minimal increase in story heights. However, concrete flat slabs could be quite vulnerable to punching shear failure in the event of a fire. The objective of the present article is to provide a state of the art review of the existing research and the issues associated with concrete flat slabs in fire and elevated temperature. There are a number of experimental and analytical studies on the punching shear behavior of concrete flat slabs in ambient conditions, available in the literature. Based on these studies, it is found that punching shear capacity in ambient condition is affected by many factors, which may not remain constant during a fire exposure. Only a limited number of studies on concrete flat slabs for punching shear failure in fire are available. This paper reviews the available experimental and analytical studies, standards and codes to address the research gap in estimating of punching shear strength of concrete flat slab-column connections without shear reinforcement.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Construction
Peer reviewedYes
NPARC number21270942
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Record identifier2b7ae628-fae7-41a3-b3e4-07fed9e87aac
Record created2014-02-18
Record modified2016-08-23
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