Review of concrete flat plate-column assemblies under fire conditions

• Published in: Fire safety journal 2017-10, Vol.93, p.39-52
• Main Authors: Arna'ot, Farid H., Abid, Sallal R., Özakça, Mustafa, Tayşi, Nildem
• Format: Article
• Language: English
• Subjects: Brittleness; Columns (structural); Concrete; Concrete flat plate; Concrete structures; Fire; Fires; High temperature; Mechanical properties; Plates (structural members); Punching shear; Slab-column connection
• ISSN: 0379-7112; 1873-7226
• DOI: 10.1016/j.firesaf.2017.07.004

The flat plate-column connection is a critical region in concrete structures because of the possible punching shear failure due to brittleness, which is aggravated in the presence of fire. Many studies have been carried out on flat plate-column connections in ambient conditions. However, only a handful of experimental works have examined this region's behaviour under high temperature conditions. This paper aims to present, discuss, and compare the available experimental tests on the mechanical behaviour of flat plate-column connections under high temperatures. The effects of decay on concrete material properties, as well as test configurations, support types, load conditions, and other parameters, are discussed. Moreover, this paper presents the available thermo-mechanical models that evaluate the behaviour of this region in fire conditions. •Review of flat plate-column connections under fire conditions is presented.•Few experimental works were found in the literature.•Some researchers analysed the punching shear of slabs at high temperatures.•The percentage of reduction in punching strength depends on many parameters.•Geometry, reinforcement ratio, load, and exposure face are effective parameters.