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Top concrete fibre temperature according to different approaches (X = 130 mm).

Top concrete fibre temperature according to different approaches (X = 130 mm).

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Several resources give guidance on the temperature profile through composite slabs; BS 5950-8, EN 1994-1-2 and NCCI PN005C-GB. Ricardo Pimentel of the SCI discusses the impact of these alternative profiles on the design of composite beams at elevated temperature. NSC - News Steel Construction (http://www.newsteelconstruction.com) https://www.newst...

Contexts in source publication

Context 1
... main topic of this article is to evaluate the impact of alternative temperature distributions in the slab to obtain the critical temperature or the allowable fire exposure period of composite beams. For a composite beam design at elevated temperature, there are three possible ways to model the temperature distribution in the slab in the UK: (i) EN 1994-1-2 Annex D Table D.5; (ii) BS 5950-8 Table 12; (iii) NCCI PN005C-GB. However, note that the UK National Annex to EN 1994-1-2 states that Annex D should not be used, recommending the use of non-contradictory complementary information (NCCI). ...
Context 2
... 90 minutes of fire exposure, the temperatures in the top (Table 2) and the bottom (Table 3) fibres of the concrete flange above the steel sheet can be obtained (i.e. X = 130 mm, and X = 60 mm, respectively, according to Figure 1). ...