1609.1.1 Determination of wind loads.
BC § 1609.1.1
Wind loads on every building or structure shall be determined in accordance with Chapters 26 to 31 of ASCE 7. The type of opening protection required, the basic design wind speed, V, and the exposure category for a site is permitted to be determined in accordance with Section 1609. Wind shall be assumed to come from any horizontal direction and wind pressures shall be assumed to act normal to the surface considered. Exceptions: 1. Subject to the limitations of Section 1609.1.1.1, the provisions of ICC 600 shall be permitted for applicable Group R-2 and R-3 buildings.
2.Subject to the limitations of Section 1609.1.1.1, residential structures using the provisions of AWC WFCM.
3.Subject to the limitations of Section 1609.1.1.1, residential structures using the provisions of AISI S230.
4.Designs using NAAMM FP 1001.
5.Designs using TIA-222 for antenna-supporting structures and antennas.
6.Wind tunnel tests in accordance with ASCE 49 and Sections 31.4 and 31.5 of ASCE 7. The wind speeds in Section 1609.3 are basic design wind speeds, V, and shall be converted in accordance with Section 1609.3.1 to allowable stress design wind speeds, V asd , when the provisions of the standards referenced in Exceptions 4 and 5 are used.
