Carport Wind Load 3

[nype]

What is the wind uplift load on a free standing or attached one side only ( to a house) lightweight alumunum carport sturcture.
ASCE-7 shows uplift for enclosed and partially enclosed structures but implies there is only horizontal wind load on open (all sides) structure. Am I missing something?

 

[SacreBleu]

Check this:

javascriptpenindex(450,450,'

http://www.tipmaster.com/includes/refinfo.cfm?w=450&h=450')

 

[SacreBleu]

oops- disregard above link.

Use this: thread507-75003

 

[UcfSE]

You aren't missing something, ASCE 7 is. Your options are to make an educated guess with your engineering judgment and the information you do have or find another code that addresses the problem.

 

[apsix]

The Australian Wind Code AS/NZS 1170.2 does cover this situation. Coefficients vary from +1.2 to - 1.5, depending on relative heights (canopy to bldg) and canopy width.

 

[RARWOOD]

SacreBleu, thank you for listing thread507-75003. The problem I run into,is that the copy of ASCE-7 which I currently have,doesn't included coefficients for open structures with gable or hip roof systems. In case like that I usually use an old copy of the UBC. Fortunately for the open structures I design the magnitude of wind uplift doesn't impact the design very much.