Wall pressures for open buildings in ASCE7-05???
Wall pressures for open buildings in ASCE7-05???
(OP)
I am designing an outdoor ampitheatre. All four sides of the ampitheatre are open > 80%. There are two towers on either side of the stage. The roof structure is tied to these towers.
ASCE7-05 doesn't appear to give wind loading for walls of open building structures. Do I neglect any wind load on the walls of the towers? I've considered applying the facia load to the towers, but this seems pretty conservative.
I have attached a pdf for reference.
ASCE7-05 doesn't appear to give wind loading for walls of open building structures. Do I neglect any wind load on the walls of the towers? I've considered applying the facia load to the towers, but this seems pretty conservative.
I have attached a pdf for reference.






RE: Wall pressures for open buildings in ASCE7-05???
RE: Wall pressures for open buildings in ASCE7-05???
Mike McCann
MMC Engineering
RE: Wall pressures for open buildings in ASCE7-05???
For something this unusual and hard to analyze, you might want to consider a wind tunnel analysis. I've never requested one and I don't know what they cost, but there's got to be a price point where the material saving is worth the cost.
RE: Wall pressures for open buildings in ASCE7-05???
I see quite a few structures that were analyzed as "enclosed" when they should have been analyzed as "partially enclosed".
Also check the provision in ASCE 7 for "Other Structures", particularly flexible structures.
RE: Wall pressures for open buildings in ASCE7-05???
The towers themselves do not meet the requirements to be considered partially enclosed. Also, the budget and timeline on the design will not permit a wind tunnel analysis.
Ron,
I will look in to the "other structures" and compare with the enclosed wind forces.
Thanks