Tapered Columns
Tapered Columns
(OP)
I have to support a duct off of an existing column. The column is part of a pre-engineered building. It is a tapered column. The load from the duct is minimal but I would still like to check the column for the added stress. Any suggestions would be appreciated.
RE: Tapered Columns
RE: Tapered Columns
An aside - I recently saw some pre-eng building plans. The anchor bolts varied by location from 5/8" dia. to 3/4" dia., and steel sections appear to be designed for least weight. In todays world where material costs (ie. weight of steel) aren't the controlling factors (fabrication usually controls), are pre-eng buildings past their prime??
RE: Tapered Columns
Respect on going the lightest it also stays the comon trend here: people even use foreign codes when the ruling parties stay unaware in order to offer economies and win the contract.
RE: Tapered Columns
My number one problem is finding out who the manufacturer is. It is amazing to me how Owners can spend hundreds of thousands of dollars on their buildings and throw away all the plans, specifications and shop drawings upon completion.
Once I've found out who the manufacturere is I've had no problems getting the information I need. I've even had one manufacturer re-run the existing building calculations on the original code design and the current code design - I did have to pay for that, but it was worth it!