This is an increasingly worrying problem here in B.C. with global warming. In each succeeding year the density of snow is getting higher. The building code is based on 3 kN/M3 (20 pcf) but we are measuring 4.5 kN/M3 (30 pcf) when we are investigating roof collapses. Snow used to blow off the...
Article 9.4.2.5 must only be in the Alberta version of the code, it is not in my versions of the NBC or the B.C. version of the code. What does it say ?
we did one recently. I lined the inside of the shaft with 3/4" plywood for structural purposes covered this with 5/8" Type X gypsum board for fire rating. We also used LVL on the flat to support the rails.The Building Inspector accepted it.
Also useful is Timber Frame Engineering by Patrick Gauthier, puplished by TFE Publishing Company and The Timber Frame Home by Tedd Benson publisher by The Taaunton Press
In nearly every building I have seen demolished or altered the mesh is right on the bottom of the slab where it is doing no good, that is why I always insist on using properly chaired rebar instead of mesh. A few years back the Concrete Associations were pushing the idea to cut out putting steel...
Spec Parralam for work with short spans and where you need the beams quickly. You can get them at a local builders yard. If you have more time and larger spans, spec glulam as they tend to be less expensive and can accomadate a greater range of loads and spans, however they are ordered from the...
Getting two 24'-6"long 1/2" steel plates is propably too difficut, you would most likly need to weld a few shorter plates together. You should consider 12 inch channels back to back, either side of the beam. Trying to strenghten the beam without bringing the new plies to proper bearing is not a...
We have to get a new wide format printer in our office. We are looking at a Xerox 3030 or an Oce TDS100. Has anyone out there got any comments as to which is the better machien. Are there any good alteritives ?.
