- Author
-
Ranby, A.
- Title
- Temperaturberakningar i brandutsatta stralregelvaggar. [Temperature Calculations of a Steel Framed Wall in Case of Fire.]
- Coporate
- Swedish Institute of Steel Construction, Stockholm, Sweden
- Report
-
Report 188:2
Feburary 1997
36 p.
- Keywords
-
temperature
|
walls
|
structures
|
thermal properties
|
heat transfer
|
gypsum board
|
insulation
- Abstract
- ONLY ABSTRACT IN ENGLISH The results of temperature calculations, of a steel framed wall in the case of fire, with the Super-Tasef program are presented. The aim was to show how the steel temperatures varies in different kind of structures as well as to show that it is possible to calculate the temperature growth in a steel framed wall. The thermal properties of the materials in the model are detemlining the correspondence between test and calculation results. A lot of work has been spent finding such relations between heat transfer and temperature, as well as specific capacity and temperature that results from tests and calculations will accord. The influence of the gypsum board thickness at the fire side and the ambient side have been analysed, as well as the influence of the mineral wool insulation with respect to heat transport through the construction. Of course, the geometry of the steel stud also have an influnce on the result. The effect of the steel stud thickness, depth of the web, flange and eventually slots have been analysed as well. The results show that it is possible to find a thermal dependence for the material properties, such that results from the numerical model reflects the results of testing. A theroretical mode1 can give a good assessment of actual temperature in the steel stud. The model makes it possible to study different steel framed wall systems. The results also show that thermal properties of the gypsum board and possible mineral wool insulation has a lot more influence on the temperature than the geometry of the steel stud.