Investigation of thermal breakage and heat transfer in single, insulated and laminated glazing under fire conditions

Wang, Yu; Wang, Qingsong; Wen, Jennifer X.; Sun, Jinhua; Liew, K.M.

doi:10.1016/j.applthermaleng.2017.07.019

Cited by 43 publications

(22 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A water-cooled total heat flux (HF) gauge with a measurement range of 0-100 kW/m 2 was placed flush to the glass surface to measure the incident heat flux. The responsivity of the gauge is 0.0906 mV/(kW/m 2 ) and the uncertainty in a fire environment was ±8-14% [8]. A data acquisition system with 16 channels for thermocouples and heat flux gauge was used with the sampling frequency of 1.0 Hz.…”

Section: Experimental Setup and Theoretical Principlesmentioning

confidence: 99%

“…However, almost all the previous work focused on the float glass that is normally used in ordinary windows [7]. With developments within construction, glass technology and architectural aesthetic, tempered glass is more frequently being used instead of float glass, especially in high-rise building glass façades, due to its good thermal resistance and mechanical performance [7,8]. It is anticipated that the thermal behavior of tempered glass is very different from float glazing and the limited knowledge about it will inevitably bring potential fire risk and uncertainty during the fire performancebased design [9].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Determination of critical fallout condition of tempered glass in an enclosure fire

Wang

Rush

2018

Fire Safety Journal

Self Cite

View full text Add to dashboard Cite

Tempered glass is extensively used in modern high-rise buildings. However, in some instances the glass will break and fall out when subjected to a fire which will create a new ventilation condition, drastically changing the enclosure fire dynamics. In this work, eleven tempered glass panels with dimensions of 815×815×6 mm 3 were heated by a pool fire placed in the center of a 1000×1000×1000 mm 3 compartment. Parameters such as glass surface temperature, heat flux, failure time and fallout behavior, were all recorded. Weibull distributions were then employed to investigate the probabilistic characteristics of tempered glass fallout. Failure probability functions, survival probability functions, and probability density functions (derivative of failure probability function) of tempered glazing were obtained and compared with those of clear and coated glazing. The critical temperature difference and critical heat flux, with 5% failure possibility for 6 mm-thick tempered glazing, are 301 °C and 36.17 kW/m 2 , respectively, which could be used as a conservative estimate for the safe design of glass façades in a fire.

show abstract

Section: Experimental Setup and Theoretical Principlesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Determination of critical fallout condition of tempered glass in an enclosure fire

Wang

Rush

2018

Fire Safety Journal

Self Cite

View full text Add to dashboard Cite

show abstract

“…A series of consistent unfortunate fire disasters has highlighted the need for safer structural materials [1]. Concrete is safer under fire due to noncombustibility and low thermal conductivity in comparison to other widely used construction materials, such as glasses [2,3], steel [4], composites [5], and wood [6]. However, the physical, chemical and mechanical properties of concrete deteriorate due to fire exposure [7,8].…”

Section: Introductionmentioning

confidence: 99%

Study on the Compressive Behaviour of Sustainable Cement-Based Composites under One-Hour of Direct Flame Exposure

2020

View full text Add to dashboard Cite

Fire is a significant threat to human life and civil infrastructures. Builders and architects are hankering for safer and sustainable alternatives of concrete that do not compromise with their design intent or fire safety requirements. The aim of the present work is to improve the residual compressive performance of concrete in post-fire exposure by incorporating by-products from urban residues. Based on sustainability and circular economy motivations, the attention is focused on rubber tire fly ash, aged brick powder, and plastic (PET) bottle residuals used as partial sand replacement. The selected by-products from urban residues are used for the preparation of Cement-Based Composites (CBCs) in two different proportions (10% and 15%). Thermal CBC behaviour is thus investigated under realistic fire scenarios (i.e., Direct Flame (DF) for 1 h), by following the International Organization for Standardization (ISO) 834 standard provisions, but necessarily resulting in nonuniform thermal exposure for the cubic specimens. The actual thermal exposure is further explored with a Finite Element (FE) model, giving evidence of thermal boundaries effects. The post-fire residual compressive strength of heated concrete and CBC samples is hence experimentally derived, and compared to unheated specimens in ambient conditions. From the experimental study, the enhanced post-fire performance of CBCs with PET bottle residual is generally found superior to other CBCs or concrete. The structure–property relation is also established, with the support of Scanning Electron Microscopy (SEM) micrographs. Based on existing empirical models of literature for the prediction of the compressive or residual compressive strength of standard concrete, newly developed empirical relations for both concrete and CBCs are assessed.

show abstract

“…A fuss of consistent unfortunate fire disasters has highlighted the vigorous need of using safer structural materials [1]. Concrete is safer under fire due to non-combustibility and low thermal conductivity in comparison to other widely used construction materials such as glasses [2,3], steel [4], composites [5], and wood [6]. However, the physical, chemical and mechanical properties of concrete deteriorate due to fire exposure [7,8].…”

Section: Introductionmentioning

confidence: 99%

Study on the Compressive Behaviour of Sustainable Cement-Based Composites Under 1-Hour Direct Flame Exposure

Vedrtnam¹,

Bedon²,

Barluenga³

2020

Preprint

View full text Add to dashboard Cite

Fire is a significant threat to human life and civil infrastructures. Builders and architects are hankering for safer and sustainable alternatives of concrete that do not compromise with their design intent or fire safety requirements. The aim of the present work is to improve the residual compressive performance of concrete in the post-fire exposure, by incorporating by-products from urban residues. Based on sustainability and circular economy motivations, the attention is focused on rubber tire fly ash, aged brick powder, and plastic (PET) bottle residuals used as partial sand replacement. The selected by-products from urban residues are used for the preparation of Cement-Based Composites (CBCs) in two different proportions (10 % and 15 %). The thermal CBC behaviour is thus investigated under realistic fire scenarios (i.e., Direct Flame (DF) for 1 hour (1h)), by following the ISO 834 standard provisions, but necessarily resulting in non-uniform thermal exposure for the cubic specimens. The actual thermal exposure is further explored with a Finite Element (FE) model, giving evidence of thermal boundaries effects. The post-fire residual compressive strength of heated concrete and CBC samples is hence experimentally derived, and compared to unheated specimens in ambient conditions. From the experimental study, the enhanced post-fire performance of CBCs with PET bottle residual is generally found superior to other CBCs or concrete. The structure-property relation is also established, with the support of Scanning Electron Microscopy (SEM) micrographs. Based on existing empirical models of literature for the prediction of the compressive or residual compressive strength of standard concrete, newly developed empirical relations for both concrete and CBCs are assessed.

show abstract

Investigation of thermal breakage and heat transfer in single, insulated and laminated glazing under fire conditions

Cited by 43 publications

References 31 publications

Determination of critical fallout condition of tempered glass in an enclosure fire

Determination of critical fallout condition of tempered glass in an enclosure fire

Study on the Compressive Behaviour of Sustainable Cement-Based Composites under One-Hour of Direct Flame Exposure

Study on the Compressive Behaviour of Sustainable Cement-Based Composites Under 1-Hour Direct Flame Exposure

Contact Info

Product

Resources

About