Fire resistance of external light gauge steel framed walls clad with autoclaved aerated concrete panels

Pancheti, Jashnav; Mahendran, Mahen

doi:10.1016/j.tws.2021.108201

Cited by 12 publications

(1 citation statement)

References 18 publications

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“…The experimental data showed that the steel sheathed stud's temperature was similar to the case when plasterboards were used. In contrast, Pancheti and Mahendran 15 used autoclaved aerated concrete (AAC) at the fire exposed side to cover the steel studs. They showed that the fire resistance using AAC was significantly improved compared to two plasterboards with 16 mm thickness.…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis of the wall deformation of masonry brick and gypsum‐sheathed stud walls during standardized fire resistance tests of steel doors

Prieler

Kitzmüller²,

Thumser³

et al. 2022

Fire and Materials

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In the case of a fire event, structural components are exposed to a thermal load. To determine the fire resistivity of building components standardized fire resistance tests (FRTs) have to be carried out. Besides the heating and the deformation of building components during the FRT, also the fire response of the adjacent wall construction is important. In the past, the fire response (deformation) of masonry brick and stud walls was examined without building components placed in the wall. However, the thermal expansion of doors and other components is causing a mechanical load on the wall, which is affecting its deformation. Thus, in the present study the deformation of masonry brick walls and gypsum-sheathed stud walls with fire safety steel doors placed in the walls were determined during FRTs. Furthermore, the effect of the different door types, door size and wall thickness on the wall deformation was evaluated. Single leaf doors were approx. 1.3 m Â 2.5 m, while double leaf doors were twice the size. The maximum deformation of the masonry brick walls was between 20 and 40 mm, and was hardly affected by the door type and size. However, larger doors with a higher temperature and thermal expansion showed a slightly increasing deformation. In contrast, stud walls were significantly affected by the door, especially when small doors were used. The wall was deformed up to approx. 100 mm for small doors. Using large doors in the stud wall, the wall deformation was limited to 20 mm.

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Section: Introductionmentioning

confidence: 99%

Experimental analysis of the wall deformation of masonry brick and gypsum‐sheathed stud walls during standardized fire resistance tests of steel doors

Prieler

Kitzmüller²,

Thumser³

et al. 2022

Fire and Materials

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Heat Transfer Analysis of Full-Scale Safe Rooms Exposed to Bushfire Conditions

Hendawitharana,

Ariyanayagam,

Mahendran

2023

Fire Technol

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Sheltering in place is identified as an accepted behaviour during disasters while safe rooms are purpose-built buildings used for sheltering or storage of valuables under these circumstances. However, ensuring the integrity of safe rooms in bushfires is complex and challenging due to many factors. This study aims to advance the understanding of the bushfire fire heat transfer in steel framed bushfire safe rooms using a numerical modelling approach. Both small-scale models of individual external walls and full-scale models of safe rooms were developed and validated using the results of an experimental study of a full-scale safe room. Then the study was extended to address the identified challenges in the design of safe rooms influenced by the factors such as, the fire exposed area, internal compartment arrangement, location of the safe room in the bushfire-prone areas, and the external environmental temperatures during summer on the tenability requirements. The results of this study provide considerable details of the performance of above-ground bushfire safe rooms detached from the associated dwelling under realistic fire conditions. They showed that the integrity of the doors is very important and that having multiple internal compartments is favourable for the bushfire performance of safe rooms. This study shows that safe rooms can be constructed using available building materials to satisfy the bushfire heat transfer requirements and provides conditions for their usage. Furthermore, the modelling methods emphasise their applicability to evaluate safe rooms and modular buildings in bushfire and building fire related scenarios.

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Numerical modeling of external light gauge steel framed wall systems exposed to bushfire flame zone conditions

Hendawitharana,

Ariyanayagam,

Mahendran

2024

Front. Struct. Civ. Eng.

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Fire resistance of external light gauge steel framed walls clad with autoclaved aerated concrete panels

Cited by 12 publications

References 18 publications

Experimental analysis of the wall deformation of masonry brick and gypsum‐sheathed stud walls during standardized fire resistance tests of steel doors

Experimental analysis of the wall deformation of masonry brick and gypsum‐sheathed stud walls during standardized fire resistance tests of steel doors

Heat Transfer Analysis of Full-Scale Safe Rooms Exposed to Bushfire Conditions

Numerical modeling of external light gauge steel framed wall systems exposed to bushfire flame zone conditions

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