ASCE 7-05 SIMPLIFIED METHOD - WALL PRESSURES
ASCE 7-05 SIMPLIFIED METHOD - WALL PRESSURES
(OP)
Hi gurus - I recently had someone argue that since the wall pressures in ACE 7-05 Method 1 tables are the sum of windward and leeward pressures (given the commentary saying that because of the diaphragms internal pressures cancel out), the pressures for wall design would be split in two because they would be "shared" by the two walls, with windward and leeward walls each carrying half of the pressure. This is argued from the standpoint of the building diagrams that show pressure only on the windward wall, and not on the leeward wall for wind blowing along the ridge. I disagree, because if one looks at Method 2, the walls don't know which method was used to design them, and it is clear from Method 2 that both of them have loading.
Also, some of the pressures listed are less than 10PSF, which is the minimum pressure that can be applied for analysis. Should the pressures on the tables for Method 1 be increased to 10 PSF? Any information will be greatly appreciated.
Also, some of the pressures listed are less than 10PSF, which is the minimum pressure that can be applied for analysis. Should the pressures on the tables for Method 1 be increased to 10 PSF? Any information will be greatly appreciated.






RE: ASCE 7-05 SIMPLIFIED METHOD - WALL PRESSURES
Also check corners, overhangs, etc...
RE: ASCE 7-05 SIMPLIFIED METHOD - WALL PRESSURES
RE: ASCE 7-05 SIMPLIFIED METHOD - WALL PRESSURES
As for minimums, the values on Fig 6-2 must be adjusted using the equation in 6.4.2.1 or 6.4.2.2, AND THEN the 10 psf minimums would apply. That's why values lower than 10 psf appear in the figures. Also, the 10 psf is check against mistakes, since it requires that you simply take the (essentially rectangular) profile of the building and apply a minimum of 10 psf.
RE: ASCE 7-05 SIMPLIFIED METHOD - WALL PRESSURES