ASCE 7-05 wind loading Case C for freestanding signs??
ASCE 7-05 wind loading Case C for freestanding signs??
(OP)
First time I've done a freestanding sign design since CA formally adopted ASCE7 for wind in '07...
Fig 6-20 presribes 3 load cases to analyze. Case A & B are pretty straitforward. Load Case C not so much. The figure shows a graduated, stepped down uniform load resolved into progressively reduced single forces. Only problem is that I can't find any where which specifies how much each "step down" is. Just eyeballing it looks like the loading steps down by 25% each time. Is that it? Anyone have any idea?
Fig 6-20 presribes 3 load cases to analyze. Case A & B are pretty straitforward. Load Case C not so much. The figure shows a graduated, stepped down uniform load resolved into progressively reduced single forces. Only problem is that I can't find any where which specifies how much each "step down" is. Just eyeballing it looks like the loading steps down by 25% each time. Is that it? Anyone have any idea?






RE: ASCE 7-05 wind loading Case C for freestanding signs??
That table gives you a Cf for each region. That's what you'd use to calculate the force on each region.
RE: ASCE 7-05 wind loading Case C for freestanding signs??
RE: ASCE 7-05 wind loading Case C for freestanding signs??
RE: ASCE 7-05 wind loading Case C for freestanding signs??