2019 CSCE Annual Conference - Laval (Greater Montreal)

2019 CSCE Annual Conference - Laval (Greater Montreal) Conference

Effect of High Strain-Rates in Heavy Timber Connections

Mr. Christian Viau, University of Ottawa (Presenter)
Dr. Ghasan Doudak, University of Ottawa

This paper reports on the experimental results from a research program investigating the blast performance of glued laminated timber columns and cross-laminated timber wall panels with and without realistic boundary conditions. Quasi-static and dynamic testing on components as well as full-scale specimens was conducted in order to quantify the effects of short-term duration loads. Dynamic testing was conducted through the use of a shock tube, a test apparatus capable of simulating far-field blast explosions. Reported in this paper are the qualitative and quantitative results from the experimental portion of the program. At both component and full-scale level, dynamic increase factors (DIFs) were measured for various tested connections. It was found that the current Canadian Blast Design Standard provisions for wood connections are inadequate for blast design. Recommendations are made based on the findings of the study.