Load-bearing capacity of studs of timber-frame houses can be greatly improved if the contribution of wall-covering material and insulation is also taken into account (scheme C in figure 1). This principle is use to design a new construction principle for industrially produced dwellings [Moonen 1998]. In this paper the results are presented from experiments to prove the validity of this scheme. In total 16 wall elements with slimline studs and a very thin skin glued to the stud and insulation are tested under compression. The experiments are intended to investigate the minimum thickness of the skin to force the stud to buckle perpendicular to the wall plane. Therefore the slenderness of the studs and also the thickness of the skin is varied in the test specimen. The composition of the tested wall elements is predetermined by commercial available elements (figure 2 and table 1) because the dimensions of these panels suited well in the scope of the research. And by using ready-made panels we were able to concentrate on the structural behavior of the panels instead of production issues of glued surfaces. These panels are in the Netherlands common used as roof boarding with integrated insulation. The experiments confirmed the chosen scheme and indicated that a 3 mm (1/8 inch) skin is amply sufficient to support studs with a slenderness-ratio of 1:6 (width : height), forcing the stud to buckle across the strongest axis. The thin skin is also able to transfer 10 - 50% of the load to the adjacent stud. The test-results have good prospects to develop new elements for timber frame houses. The elements to be developed will lead up to a reduction of structural materials and an improvement of thermal insulation and are expressly tailored to industrial production with improved working conditions.
|Title of host publication||Proceedings of the World Conference on Timber Engineering, Whistler Resort, British Columbia, Canada, July 31 - August 3, 2000|
|Publication status||Published - 2000|
|Event||2000 World Conference on Timber Engineering (WCTE 2000) - Whistler Resort, Canada|
Duration: 31 Jul 2000 → 3 Aug 2000
|Conference||2000 World Conference on Timber Engineering (WCTE 2000)|
|Abbreviated title||WCTE 2000|
|Period||31/07/00 → 3/08/00|