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contributor authorJian Jiang
contributor authorJoseph A. Main
contributor authorJonathan M. Weigand
contributor authorFahim Sadek
date accessioned2022-01-30T20:12:43Z
date available2022-01-30T20:12:43Z
date issued2020
identifier other%28ASCE%29ST.1943-541X.0002650.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4266692
description abstractThis paper presents a reduced-order numerical modeling approach for the analysis of heat transfer in composite floor slabs with profiled steel decking exposed to fire effects. This approach represents the thick and thin portions of a composite slab with alternating strips of shell elements, using a layered thick-shell formulation that accounts for both in-plane and through-thickness heat transfer. To account for the tapered profile of the ribs, layered shell elements representing the thick portion of the slab adopt a linear reduction in the density of concrete within the depth in the rib. The specific heat of concrete in the rib is also proportionally reduced to indirectly consider the heat input through the web of the decking, because the reduced-order model considers thermal loading only on the upper and lower flanges of the decking. The optimal ratio of modified and actual specific heat of concrete in the rib is determined, depending on the ratio of the height of the upper continuous portion to the height of the rib. The reduced-order modeling approach is validated against experimental results.
publisherASCE
titleReduced-Order Modeling of Composite Floor Slabs in Fire. I: Heat-Transfer Analysis
typeJournal Paper
journal volume146
journal issue6
journal titleJournal of Structural Engineering
identifier doi10.1061/(ASCE)ST.1943-541X.0002650
page04020080
treeJournal of Structural Engineering:;2020:;Volume ( 146 ):;issue: 006
contenttypeFulltext


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