Fire tests on two-way concrete slabs in a full-scale multi-storey steel-framed building

Yang, Zhi Nian; Dong, Yinmao; Xu, Weifan

doi:10.1016/j.firesaf.2013.01.023

Cited by 26 publications

(20 citation statements)

References 18 publications

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“…In recent years, a number of experimental studies for investigating the fire behavior of reinforced concrete slabs have been conducted [1][2][3][4][5][6][7]. In 2013 and 2015, fire tests in one steel-framed building [5][6][7] indicated that reinforced concrete floor slabs at larger deflections played a key role in enhancing the fire resistance of the steelframed building due to the tensile membrane action. It is also acknowledged that the behavior of reinforced concrete slabs in fire is affected by the slabs' support conditions.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, the clear plateau was observed in the mid-span deflection of heated panels in the building, and the greater boundary restraint resulted in a longer plateau duration. In addition, the top surface cracks of the interior panel were clearly different from those of the corner panels due to the different inplane restraint and rotation restraint [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Fire behaviour of reinforced concrete slabs under combined biaxial in-plane and out-of-plane loads

Yong

Bisby

Tengyan

et al. 2018

Fire Safety Journal

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To better understand the fire behaviour of in-plane restrained reinforced concrete slabs, this paper presents six fire tests on two-way spanning concrete slabs under compressive bi-axial in-plane and flexural outof-plane loads. The data presented include furnace temperatures, temperature distributions, vertical and horizontal deflections, restraint forces, crack patterns, and characterisation of spalling of the six slabs during both heating and cooling phases. Comparison of the results indicates that bi-axial in-plane loads may have a negative effect on the vertical and horizontal deflection trends of the restrained slabs in fire. In addition, snap though behaviour and subsequent severe reversals of deflection trends were observed for the first time in concrete slabs with sustained bi-axial in-plane restraint during heating and cooling stages. Fire behaviour of the restrained slabs were considerably different from those of the simply supported slabs, and thus the effect of uniaxial or bi-axial in-plane restraints on the failure mode should be considered to establish reasonable failure criteria for these slabs. In addition, it is suggested that the corners of the in-plane restrained slabs should be reinforced by arranging the whole span top steels along two directions since the corners easily fracture with large diagonal cracks during fire tests.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fire behaviour of reinforced concrete slabs under combined biaxial in-plane and out-of-plane loads

Yong

Bisby

Tengyan

et al. 2018

Fire Safety Journal

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“…There are three main approaches for studying smoke transport in underground buildings: full-scale experiments, small-scale experiments, and CFD simulation (Yang et al, 2013;Foster et al, 2007;Li et al, 2014;Huang et al, 2009). Full-scale experiments offer the greatest accuracy but are expensive and dangerous.…”

Section: Methodsmentioning

confidence: 99%

How domes improve fire safety in subway stations

Gao

Zhang

et al. 2015

Safety Science

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“…In addition, a series of fire tests on a full‐scale eight‐story steel‐framed building were conducted in 1996 . Recently, several series of full‐scale fire tests were conducted on the conventional concrete floor in a full‐scale three‐story steel‐framed building in China . These fire tests showed that the deformation process and cracking patterns of the concrete slabs were highly dependent on the restraint conditions, and they exhibited excellent fire resistance performance due to tensile membrane action.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on the fire resistance of cast‐in‐situ hollow core concrete slabs constructed using filler boxes and an assembly box system

Lyu

Yong

Coile

et al. 2018

Structural Concrete

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This paper presents the results of four fire tests on full-scale cast-in-situ, hollow core concrete slabs, constructed using filler boxes and an assembly box system. Experimental data include the furnace temperature, temperature distribution in the slab, and vertical and horizontal deflections during the heating and cooling phases, as well as observed cracking patterns. The test data indicate that the tested hollow slabs with plastic filler boxes have good performance in case of standard fire exposure with small vertical deflections and high deflection recovery in long duration testing. For slabs with assembly box systems serious spalling was observed, resulting in integrity failure after 69 minutes in one of the tests. Nevertheless, load bearing capacity was maintained for all tests. The tests highlight the importance of the boundary conditions and the arrangement of the filler system on the fire behavior of the hollow slabs, particularly with respect to the observed cracking, spalling, and structural integrity.

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Fire tests on two-way concrete slabs in a full-scale multi-storey steel-framed building

Cited by 26 publications

References 18 publications

Fire behaviour of reinforced concrete slabs under combined biaxial in-plane and out-of-plane loads

Fire behaviour of reinforced concrete slabs under combined biaxial in-plane and out-of-plane loads

How domes improve fire safety in subway stations

Experimental investigation on the fire resistance of cast‐in‐situ hollow core concrete slabs constructed using filler boxes and an assembly box system

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