Numerical studies of gypsum plasterboard and MgO board lined LSF walls exposed to fire

Rusthi, Mohamed; Poologanathan, Keerthan; Ariyanayagam, Anthony; Mahendran, Mahen

doi:10.14264/uql.2016.544

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…shown in Figure 3, the first two peaks occurred at about 180-230 °C, the third and fourth peaks occurred at 400-475 °C, and the last peak occurred at about 520 °C [53]. According to Rusthi et al [52,54], the first two peaks were due to dehydration of magnesium oxychloride and evaporation of water, the third and fourth were due to hydrolysis and pyrolysis, and the last peak was due to the release of chemically bound water. Although the boards have an advantage over GB and OSB panels in terms of acoustic properties, the authors concluded that the main disadvantage of this type of boards is that they have a very high mass loss at elevated temperatures, about 15% higher compared to GBs.…”

Section: Sheathing Boards and Finishing Layersmentioning

confidence: 90%

Development of Lightweight Steel Framed Construction Systems for Nearly-Zero Energy Buildings

et al. 2022

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Light steel frame (LSF) building systems offer high structural resilience, lower costs due to fast prefabrication, and high ability to recycle and reuse. The main goal of this paper was to provide state-of-the-art main components for such systems with the intention to be implemented for use in nearly-zero energy buildings (NZEBs). A brief historical outline of the development of LSF systems was given, and the key parameters affecting the design and use of LSF systems were discussed. The influence of the individual components of the LSF system (steel studs, sheathing boards, and insulation materials) was then thoroughly discussed in light of relevant research on energy efficiency and other important properties (such as sound protection and fire resistance). Web of Science and Scopus databases were used for this purpose, using relevant key words: LSF, energy efficiency, sheathing boards, steel studs, insulation, etc. Several research gaps were identified that could be used for development and future research on new LSF systems. Finally, based on the analysis of each component, an innovative LSF composite wall panel was proposed which will be the subject of the authors’ future research. Conducted preliminary analysis showed low thermal transmittance of the system and indicates the path of its further research.

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Section: Sheathing Boards and Finishing Layersmentioning

confidence: 90%

Development of Lightweight Steel Framed Construction Systems for Nearly-Zero Energy Buildings

et al. 2022

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“…They possess high strength-to-weight ratio, better durability, enhanced thermal comfort and are easy to install [2]. However, this material does not deliver enough thermal resistance to fulfil the stringent insulation regulations.…”

Section: Plaster-nanofiller Compositementioning

confidence: 99%

Numerical mesh generation tool for thermal conductivity simulations of nanoparticle filled inorganic plates

Latré

Pooter

Seveno

et al. 2018

Polymer Engineering & Sci

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Since regulations on insulation building materials become more stringent, particular interest is growing in thermal low conductive composite building materials. By adding very expensive, low thermal conductive nanoparticles in widely used inorganic solid materials, a new high performance building material can be developed. To sufficiently balance the production cost and the use of the nanofillers, an automatic tool, PreCon, was developed to provide sufficient process information and to generate a general purpose numerical model which can be used for thermal insulation simulations. It is expected that a total random distribution of the particles in the inorganic matrix will not result in a significant increase in insulation properties and hence will not enhance the performance. PreCon is used to investigate the influence of a random distributed nanomaterial combined with a more normal distribution through thickness. Based on this information, one can gauge the efforts needed to localize the nanoparticles in particular regions. However, accurate and repetitive thermal conductivity measurements of real dispersions are very difficult and precarious to obtain. Nevertheless, combining PreCon with Siemens simulation software provides appropriate nanofiller distributions with respect to cost. The realized tool is also able to introduce fibrous material distributions as a composite reinforcement. POLYM. ENG. SCI., 58:568-585, 2018.

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“…In developed countries, the LSF (Light Steel Framing) constructive system is widely used in different architectural typologies. It consists of cold formed galvanized steel profiles, whose mechanical performance is satisfactory, besides presenting acceptable durability and aesthetic standard in the civil construction scenario; in terms of cost/benefit, in relation to the other structural systems designed in steel, it offers real advantages [2]. The LSF constructive system is characterized by being composed of lightweight profiles, disposed in a submultiple structural modulation of the dimensions of the plates that make the panels closures and in an integrated way produce self-supporting elements that support walls, floors and roofs.…”

Section: Introduction mentioning

confidence: 99%

Analysis of the Perception of Users of Pre-hospital Architecture in Light Steel Frame: ACase Study in Minas Gerais, Brazil

MirvaneVasconcelos¹,

Melo²,

Souza³

2019

JCEA

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The quality of many physical spaces can be achieved from the use of a flexible architecture. Understanding whether such a building has acceptable comfort conditions, adequate division of its internal spaces, efficiency of functionality, can be possible by consulting its own users/employees, analyzing and considering one of the basic concepts for architectural spatial design: people and environments are inseparable and cannot be thought out separately. Therefore, the purpose of this case study is to analyze the perception of users and managers of three USP (Unidades de Saúde Públicas) (Public Health Units), built in the LSF (Light Steel Framing) system, in relation to the built environment and thus contribute to a reflection on health care architecture based on identified gaps. These Public Health Units in LSF are located in 3 (three) different cities in the interior of the state of Minas Gerais, in the southeastern region of Brazil. To this end, the development of the work is carried out through on-site interviews with users and managers. The answers of the questionnaires are analyzed with the help of the software SPSS (Statistical Package for the Social Sciences), version 19.0. The results show that the buildings present project inadequacies related to the performance of self-supporting closures, extensive to the presence of cracks and infiltrations and to some aspects related to environmental comfort. However, the hospital architecture produced with the LSF can allow flexibility, modifications and probably possible solutions to these issues.

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Numerical studies of gypsum plasterboard and MgO board lined LSF walls exposed to fire

Cited by 7 publications

References 9 publications

Development of Lightweight Steel Framed Construction Systems for Nearly-Zero Energy Buildings

Development of Lightweight Steel Framed Construction Systems for Nearly-Zero Energy Buildings

Numerical mesh generation tool for thermal conductivity simulations of nanoparticle filled inorganic plates

Analysis of the Perception of Users of Pre-hospital Architecture in Light Steel Frame: ACase Study in Minas Gerais, Brazil

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