An architect is wanting me to design a drive thru that has only 2 posts, similar to the structures they install over gas pumps. Has anyone ever designed one of these? Are the columns designed as a cantilevered column to resist lateral loads? It seem this is a very unstable structure. I've noticed that alot of the new canopies have 4 columns and the ones that have 2 columns have alot bigger columns than the older ones.
Eng-Tips is the largest engineering community on the Internet
Intelligent Work Forums for Engineering Professionals
-
Congratulations waross on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
gas station canopy 2
- Thread starter deereman
- Start date
I should clarify that it was the roof that was moving up and down 1.5'. The roof itself looked like a blanket being shaken at the beach (and this was only a 30-40 mph wind). To be honest, I didn't even look at the column drift, but that's because I was so surprised (and focused on) by the amount of movement of the roof.
structuresguy
Structural
I'm sorry StructuralEIT, but are you saying FEET or INCHES?
If it is feet, then my only advice would be RUN!!!!!
If it is feet, then my only advice would be RUN!!!!!
Was it a two-post structure?
I checked one of these one time where it was not really stable - sort of a teeter-totter in one direction. The designer inadvertantly was relying on load-symmetry to "balance" things out. Otherwise they might have seen the deflections you are describing.
I checked one of these one time where it was not really stable - sort of a teeter-totter in one direction. The designer inadvertantly was relying on load-symmetry to "balance" things out. Otherwise they might have seen the deflections you are describing.
- Status
Similar threads
- Locked
- Question
- Locked
- Question