Stairway Tower Wind Load: Corner Zone
Stairway Tower Wind Load: Corner Zone
(OP)
I have a 300 foot long 5 story building (200 feet deep). A 50 foot wide stairway tower projects 20 feet from the front and extends the full height of the building. Does anyone have experience with corner wind load zones for a similar projection? Should the corner zone extend 10% of the projection length (10% * 50 = 5 feet) or 10% of the complete building length (10%*300 = 30 feet), or something else?
Baffled by codes.
Baffled by codes.






RE: Stairway Tower Wind Load: Corner Zone
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RE: Stairway Tower Wind Load: Corner Zone
DaveAtkins
RE: Stairway Tower Wind Load: Corner Zone
Two questions:
1: Why don't you use the corner wind load at corners that are away from the main building corners; surely there is turbulence there...
2: Are you Dave Atkins from Morristown NJ?
Eric
RE: Stairway Tower Wind Load: Corner Zone
2. No, I am the Dave Atkins from Green Bay, WI
DaveAtkins
RE: Stairway Tower Wind Load: Corner Zone
RE: Stairway Tower Wind Load: Corner Zone
RE: Stairway Tower Wind Load: Corner Zone
End zone versus non-end zone comes into play only in overall building design, not the components and cladding.
RE: Stairway Tower Wind Load: Corner Zone
RE: Stairway Tower Wind Load: Corner Zone
When determining overall building stability I account for end-zones and middle zones.
RE: Stairway Tower Wind Load: Corner Zone
It does however make a more significant impact on overall building loading (50% increase in end-zones)
RE: Stairway Tower Wind Load: Corner Zone
Where do you get the 15% increase maximum from. Is there a particular code or standard that you are using? If so please let me know.
RE: Stairway Tower Wind Load: Corner Zone
That 15% is just a rough estimate but basically our pressure/gust coefficient is 2.05 for end zone and 1.8 for middle wall. 2.05/1.8=1.138, 15% increase.
I'm not familiar with ASCE procedures but I imagine it should be relatively close? All of our other design methods are very similar across borders.
RE: Stairway Tower Wind Load: Corner Zone