Fire Resistance of Timber Decking for Heavy Timber Construction

摘要

The National Building Code of Canada provides both prescriptive specifications for timber beams and columns afforded equivalency to wood-frame construction with 45 min fire-resistance ratings, and simple calculation methods for determining fire-resistance ratings of larger glued-laminated timber beams and columns. However the building code does not accept calculation methods for determining the fire endurance of wood decking materials. Although heavy timber roof construction is quite common in construction projects today, the use of heavy timber floor construction is not.