Análise computacional do fenômeno de transferência de calor em paredes divisórias do tipo dry wall

Abstract

The present work aims to give a contribution to the study of cold-formed steel members under fire condition. Specifically, the heat transfer in light steel framed walls with or without thermal insulation was studied. For this, computational models are applied to obtain, with acceptable precision, the values of temperature in any position of the structural system. In this way, it will be possible to describe the temperature distribution (uniform or non-uniform)

Study on the Structural and Thermal Performance of a Cold‐formed Steel Frame Panel Under Fire Conditions

“…The cold-formed profiles were represented by rectangular shell elements with a discretization of 5 mm for height and width. As for the gypsum boards, they were divided into solid elements with edges of 15 mm, as for transient thermal analysis, a highly detailed discretization is not essential [4]. The connections between the U profiles and the UE studs were treated as fully rigid with double-thickness elements, identified by the green areas in Figure 2a.…”

“…To perform this analysis, it was necessary to configure the thermal properties of the gypsum boards according to temperature. The corresponding data is presented in Table 2 and was obtained from studies conducted by Alves and Batista (2007) [4], using data from Feng et al ( 2003) [8]. The cavities were considered thermally insulated, disregarding the heat transfer effects through them.…”