Improving Thermal Performance of the Wall Panels Using Slotted Steel Stud Framing

Lupan, Lidia Maria; Manea, Daniela Lucia; Moga, Ligia

doi:10.1016/j.protcy.2016.01.108

Cited by 21 publications

(13 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The thermal bridges formed by the accelerated use of steel have motivated many researchers to put efforts into researching in this field, analyzing thermal performance [150,162], and its improvement [163][164][165] or mitigating thermal bridges [48,166], the importance of flanking thermal losses [17], the importance of the size and shape of steel studs on the thermal performance [1], numerical simulations of CFS framed walls [146] and CFS buildings [153], development of analytical methods [156,158] and in situ measurement methods [161,167] to estimate thermal transmittance, comparisons between different methods [156,166], thermal insulation [18,157,168,169], the interaction of thermal and sound insulation [19], and thermal performance and energy efficiency [170][171][172]. Table 2 summarizes the important research works performed over the last two decades on the thermal performance of CFS structures.…”

Section: Existing Studies On the Thermal Performance Of Cfs Structuresmentioning

confidence: 99%

A Critical Review on Optimization of Cold-Formed Steel Members for Better Structural and Thermal Performances

et al. 2022

View full text Add to dashboard Cite

The construction and building sectors are currently responsible globally for a significant share of the total energy consumption and energy-related carbon dioxide emissions. The use of Modern Methods of Construction can help reduce this, one example being the use of cold-formed steel (CFS) construction. CFS channel sections have inherent advantages, such as their high strength-to-weight ratio and excellent potential for recycling and reusing. CFS members can be rolled into different cross-sectional shapes and optimizing these shapes can further improve their load-bearing capacities, resulting in a more economical and efficient building solution. Conversely, the high thermal conductivity of steel can lead to thermal bridges, which can significantly reduce the building’s thermal performance and energy efficiency. Hence, it is also essential to consider the thermal energy performance of the CFS structures. This paper reviews the existing studies on the structural optimization of CFS sections and the thermal performance of such CFS structures. In total, over 160 articles were critically reviewed. The methodologies used in the existing literature for optimizing CFS members for both structural and thermal performances have been summarized and presented systematically. Research gaps from the existing body of knowledge have been identified, providing guidelines for future research.

show abstract

Section: Existing Studies On the Thermal Performance Of Cfs Structuresmentioning

confidence: 99%

A Critical Review on Optimization of Cold-Formed Steel Members for Better Structural and Thermal Performances

et al. 2022

View full text Add to dashboard Cite

show abstract

“…In the context of perforated steel studs Lupan et al [24] developed a study to analyse the influence of the slotted segments geometric characteristics in the heat flow value across a panel made of cold steel framing. In this analysis rectangular and non-rectangular perforations were considered.…”

Section: Thermal Bridges Mitigation Strategiesmentioning

confidence: 99%

The Effectiveness of Thermal Insulation in Lightweight Steel-Framed Walls with Respect to Its Position

Roque

Santos

2017

Buildings

View full text Add to dashboard Cite

Lightweight steel-framed (LSF) construction, given its advantages, has the potential to reach high standards in energy and environmental performance of buildings, such as nearly zero-energy buildings (nZEB). When compared with traditional construction, LSF system offers distinct benefits in such fields as sustainability, cost-effectiveness, constructive process, and safety at work. Despite the benefits of this constructive system, the effect of thermal bridges in LSF elements, caused by the high thermal conductivity of the steel structure, can be a disadvantage. The excessive heat losses or gains through these thermal bridges are more relevant in buildings' exterior envelope, such as facade walls. These building components' thermal performance is crucial in the buildings' overall energetic behaviour, with a direct impact on energy consumption and resulting monetary costs during their operational stage. In this work the influence of the thermal insulation position on its effectiveness is evaluated in LSF facade walls. For this purpose, several LSF wall types are assessed, namely cold, warm, and hybrid construction. The influence of thermal bridges instigated by the steel studs in the LSF walls' overall thermal performance is evaluated as well. The computations are performed using specialized finite element software (THERM).

show abstract

“…Obviously, given the high thermal conductivity of steel, the relevance of TBs in steel structures (e.g., lightweight steel framed-LSF) could be even greater [9], which motivated the attention of many researchers for these issues, regarding: thermal performance improvement [10,11], flanking thermal losses [12], parametric studies [13][14][15], analytical methods to estimate thermal transmittance [16], effectiveness of thermal insulation [17][18][19], experimental versus numerical and analytical approaches [20], state-of-the-art reviews [8], experimental assessment of thermal break strips' performance [21], development of in situ measurements' methods [22], experimental and numerical characterization [23] and buildings' numerical simulations [24]. Moreover, as stated by Angelis and Serra [25]: "... the correct evaluation of thermal performances of light steel frame walls requires more complex and detailed analysis than ones necessary for RC and masonry constructions".…”

Section: Introductionmentioning

confidence: 99%

“…Several TBs mitigation strategies for LSF elements were assessed by other researchers, being that they are the ones most often found in the literature of the reinforcement of external continuous insulation (ETICS) [14,20], the use of slotted steel studs [10,11,13] and the use of thermal break strips [13,15,21]. However, no research was found in the scientific literature on how important the size and shape of the steel studs are on the thermal performance of LSF building elements, such as load-bearing walls.…”

Section: Introductionmentioning

confidence: 99%

The Importance of Stud Flanges Size and Shape on the Thermal Performance of Lightweight Steel Framed Walls

Santos

Poologanathan

2021

Sustainability

View full text Add to dashboard Cite

Energy production still relies considerably on fossil fuels, and the building sector is a major player in the energy consumption market, mainly for space heating and cooling. Thermal bridges (TBs) in buildings are very relevant for the energy efficiency of buildings and may have an impact on heating energy needs of up to 30%. Given the high thermal conductivity of steel, the relevance of TBs in lightweight steel framed (LSF) components could be even greater. No research was found in the literature for evaluating how important the size and shape of steel studs are on the thermal performance of LSF building elements, which is the main objective of this work. This assessment is performed for the internal partitions and exterior façade of load-bearing LSF walls. The accuracy of the numerical model used in the simulations was verified and validated by comparison experimental measurements. Three reference steel studs were considered, six stud flange lengths and four steel thicknesses were evaluated, and five flange indentation sizes and four indent filling materials were assessed, corresponding to a total of 246 modelled LSF walls. It was concluded that the -value decreases when the flange length and the steel studs’ thickness increases, being that these variations are more significant for bigger flange sizes and for thicker steel studs. Additionally, it was found that a small indentation size (2.5 or 5 mm) is enough to provide a significant -value increase and that it is preferable not to use any flange indentation filling material rather than using a poor performance one (recycled rubber).

show abstract

Improving Thermal Performance of the Wall Panels Using Slotted Steel Stud Framing

Cited by 21 publications

References 1 publication

A Critical Review on Optimization of Cold-Formed Steel Members for Better Structural and Thermal Performances

A Critical Review on Optimization of Cold-Formed Steel Members for Better Structural and Thermal Performances

The Effectiveness of Thermal Insulation in Lightweight Steel-Framed Walls with Respect to Its Position

The Importance of Stud Flanges Size and Shape on the Thermal Performance of Lightweight Steel Framed Walls

Contact Info

Product

Resources

About