Just interested to know what kind of materia for big buildings main columns
is safe/safest. I read a surprising article saying that using (thick) timber
is good. It is known that steel structure does not hold if there is bigger
fire: There is a risk of building collapsing (say after 6 hours fire)
because steel loses its strength. I wonder why are they using so much steel
because of this risk (according to history steel can give up strength too
much even after 1-2 hours fire)... Timber with some kind of coating best?
define 'safest'... There are many more hazards than fire. If you can
coat wood to protect from a six hour file (or a two hour fire) then
you could coat steel as well.
define 'big buildings'... 5 floors? 20 floors? 100 floors? How many sq
metres? 100? 1000? 10,000?
define 'thick timber'... 12" x 12"? 24" x 24"?
Actually the best way to learn about construction and structural sturdiness
is by watching the demolition of old buildings!
You will see how some materials quickly come down with the wrecking ball
(wood). And how it takes forever for them to tear down others (concrete with
tons of rebar).
So find a demolition company in your area and call and ask where they are
tearing something down. Then go watch.
"crea" wrote in message
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.