Mestek P, Kreuzinger H, Winter S (2008) Design of cross laminated timber (CLT). In: Conference proceedings of the World Conference on Timber engineering in Vienna, 2016. Hasburgh L, Bourne K, Peralta P, Mitchel P, Schiff S, Pang W (2016) Effect of adhesives and ply configuration on the fire performance of Southern pine cross-laminated timber. Fire Saf J 44:1078–1087Īguanno M (2013) Fire resistance tests on cross-laminated timber floor panels: an experimental and numerical analysis, Master Thesis, Carleton University, Canada SP Report 2010:11, Stockholmįrangi A, Fontana M, Hugi E, Jübstl R (2009) Experimental analysis of cross-laminated timber panels in fire.
Schmid J, König J (2010) Cross Laminated timber in fire. While the zero-strength layer for glulam beams in bending is assumed to be 7 mm (0.3 in), for CLT the corresponding value is in most of the cases between 5 mm and 12 mm but is different for other loading modes such as buckling (wall elements) and depending on the applied protection.įalk A, Dietsch Ph, Schmid J (2016) In: Proceedings of the Joint Conference of COST Actions FP1402 & FP1404 Cross laminated timber: a competitive wood product for visionary and fire safe buildings, joint conference of COST Actions FP1402 & FP1404 Cross Laminated Timber. Subsequently, the methodology was used to determine design equations for initially unprotected and protected three-, five- and seven-layer CLT in bending and buckling. This is due to the large range of modification factors answering the typical layup of CLT comprising layers with their fiber direction cross the span direction. It was shown that the use of the zero-strength layers is favorable compared to the modification factors to calculate the resistance of the residual cross section.
It was shown that simulation results agree well with test results and that they can be used to determine layup specific modification factors used by the reduced properties method or zero-strength layers used by the effective cross section method. The presented simulations consider the effective thermal–mechanical characteristics of wood exposed to standard fire and perform an advanced section analysis using a temperature profile corresponding to the actual protection and the location of the centroid together with the possibility of plasticity on the side of compression. Following existing models, the simplified design model aims for a two-step process whereby in a (i) first step the residual cross section and in (ii) a second step the load bearing capacity of the partly heated residual cross section is determined. The technique was then used to develop simplified design equations to be used by engineers to predict the behavior of CLT in fire resistance tests and verify its fire resistance.
In this paper, a simulation technique is presented which can be used to determine the fire resistance of CLT. While fire testing is time consuming and costly, simulations provide flexibility to optimize the product or to develop simplified design models for structural engineers. As for other components, the fire resistance has to be verified for this type of product. swelling and shrinkage, is controlled by the crosswise laminations. This solid engineered timber product provides advantages compared to other solid timber slabs as the dimension stability, i.e.
Cross-laminated timber, typical abbreviations CLT or XLAM, is currently one of the most innovative product in building with wood.
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