Minnesota Administrative Rules
Agency 151 - Labor and Industry Department
Chapter 1303 - MINNESOTA PROVISIONS OF STATE BUILDING CODE
Part 1303.2200 - SIMPLIFIED WIND LOADS
Current through Register Vol. 48, No. 39, March 25, 2024
Subpart 1. Section 2200.
Subp. 2. Simplified design wind pressures.
Ps represents the net pressures (sum of internal and external) to be applied to the horizontal and vertical projections of building surfaces. For the horizontal pressures, Ps is the combination of the windward and leeward net pressures. Ps may be determined from the following equation:
where:
Kzt = Topographic factor as defined in Chapter 26 of ASCE 7.
Palt = Alternative simplified design wind pressure from Table Palt.
TABLE Palt a | |
Horizontal and Vertical Pressure b | |
Exp B | 25 psf |
Exp C | 30 psf |
Exp D | 35 psf |
Overhang Vertical Pressure c | |
Exp B | -40 psf |
Exp C | -48 psf |
Exp D | -56 psf |
aValues are for ultimate wind design (Vult). Multiply by 0.6 for allowable stress design (ASD).
bFor vertical pressure, the above values are negative (upward).
cNegative values are upward.
Statutory Authority: MS s 16B.59; 16B.61; 16B.64; 326B.101; 326B.106; 326B.13