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wind loading for a flat canopy attached to a building
what is the most appropriate method in asce 7-05 in coming up with design pressures for a flat roof canopy attached to a building?
i used the lower roof provisions which bumps you back to the roof overhangs, but you use different zones (you use cp for zone 2 in zone 3 and for zone 1 in zone 2).
i'll be interested to hear from others.
what about if you use method 2?
that is the analytical method
this condition is discussed explicitly in the seaw/atc 60 commentary on the wind load provisions (which is quite good - i would recommend it for anyone doing a lot of wind design):
i've always used the wall pressure at the height of the canopy. when a wind hits the windward wall of a building, it can go over or around. i assume the wind going over the building is acting as a perpendicular load on the bottom of the canopy.
hope this helps.

2009-09-16, 10:01 PM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	wind loading for a flat canopy attached to a building wind loading for a flat canopy attached to a building what is the most appropriate method in asce 7-05 in coming up with design pressures for a flat roof canopy attached to a building? i used the lower roof provisions which bumps you back to the roof overhangs, but you use different zones (you use cp for zone 2 in zone 3 and for zone 1 in zone 2). i'll be interested to hear from others. what about if you use method 2? that is the analytical method this condition is discussed explicitly in the seaw/atc 60 commentary on the wind load provisions (which is quite good - i would recommend it for anyone doing a lot of wind design): i've always used the wall pressure at the height of the canopy. when a wind hits the windward wall of a building, it can go over or around. i assume the wind going over the building is acting as a perpendicular load on the bottom of the canopy. hope this helps. __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]