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HomeMy WebLinkAboutWind Load Calculation Broward County Fenestration Voluntary Wind Load Chart* Per ASCE 7-10 MgthQ0 Pa,tend �,(�203 ) �. trofiting in Accordance with Formal Interpretation#5 v� For Detached One-and Two amAs el an MultipledaSgleamily Dwellings(Townhouses) with Mean Roof Height<-30 feet ' �`-! �. Wind 170 mph(3-sec nd g posure C** -Kd=0.85 /'Kzt=1.0/Pressures are in PSF/Not for use in Coastal(Exposure'D'areas) �. *Using Allowable Stress Design methodology(P=0.6w) / **Exposure shall be determined according to ASCE 7-10 Section 26.7.3(Exposure Categories) n n Effective Location: Mean Roof Height of 15 feet Mean Roof Height of 20 feet Mean Roof Height of 25 feet Mean Roof Hei of 3Neet i-+ Wind Zone Zone Zone Zo -, MI Area Gable or Hip 1 2 3 1 2 3 1 2 3 1 2 1 sv 301 Roof 10 Gable/Hip 16.0 -37.8 16.0 -63.4 16.0 -95.4 16.3 -40.2 16.3 -67.4 16.3 -101.4 17.1 -42.1 17.1 -70.6 17.1 -106.3 17.8 -43.7 17.8 -734 17.8 -110. 20 Roof 16.0 -36.8 16.0 -56.7 16.0 -79.1 16.0 -39.1 16.0 -60.2 16.0 -84.0 16.0 -41.0 16.0 -63.1 16.0 -88.0 16.7 -42.6 16.7 -65 50 85 70 16.0 -35.6 16.0 -47.7 16.0 -57.4 16.0 -37.8 16.0 -50.7 16.0 -61.0 16.0 -39.6 16.0 -53.2 16.0 -63.9 16.0 -41.1 16.0 -55.2 16.0 -66.4 100 (0 to 1.5:12) 16.0 -34.6 16.0 -41.0 16.0 -41.0 16.0 -36.8 16.0 -43.6 16.0 -43.6 16.0 -38.5 16.0 -45.7 16.0 -45.7 16.0 -40.0 16.0 -47.4 16.0 -47.4 10 Gable/Hip 21.8 -34.6 21.8 -60.2 21.8 -89.0 123.11 -36.8 23.1 1 -64.0 23.1 -94.6 24.3 -38.5 24.3 -67.1 24.3 -99.2 1 25.2 -40.0 25.2 -69.7 25.2 -103.0 20 Roof*** 19.9 -33.6 19.9 -55.4 19.9 -83.3 121.1 -35.7 21.1 -58.9 21.1 -88.5 22.1 -37.4 22.1 -61.7 22.1 -92.7 123.0 -38.9 23.0 -64.1 23.0 -96.3 50 70<05 270 17.3 -32.4 17.3 -49.0 17.3 -75.6 18.4 -34.4 18.4 -52.1 18.4 -80.3 19.3 -36.0 19.3 -54.6 19.3 -84.2 20.0 -37.4 20.0 -56.7 20.0 -87.5 100 (1.5 to 6:12) 16.0 -31.4 16.0 -44.2 16.0 -69.8 16.3 -33.3 16.3 -47.0 16.3 -74.2 17.1 -35.0 17.1 -49.2 17.1 -77.8 17.8 -36.3 17.8 -51.1 17.8 -80.8 10 Gable Roof 34.6 -37.8 34.6 -44.2 34.6 -44.2 36.8 -40.2 36.8 -47.0 36.8 -47.0 38.5 -42.1 38.5 -49.2 38.5 -49.2 40.0 -43.7 40.0 -51.1 40.0 -51.1 20 27°<6.5 450 33.6 -35.9 33.6 -42.3 33.6 -42.3 35.7 -38.1 35.7 -44.9 35.7 -44.9 37.4 -39.9 37.4 -47.1 37.4 -47.1 38.9 -41.5 38.9 -48.9 38.9 -48.9 50 (6 to 12:12)P21.4 -33.3 32.4 -39.7 32.4 -39.7 34.4 -35.4 1 34.4 -42.2 34.4 -42.2 36.0 -37.1 36.0 -44.2 36.0 -44.2 37.4 -38.6 37.4 1 -46.0 37.4 -46.0 100 131.4 -31.4 31.4 -37.8 31.41 -37.8 133.31 -33.3 1 33.3 1 -40.2 33.3 -40.2135.0 -35.0 35.0 -42.1 1 35.0 -42.1 1 36.3 -36.3 36.3 1 -43.7 36.3 -43.7 ***For Hip Roofs with angle>7 degrees(1.5:12)and 5 25 degrees(5.5:12),Zone 3 shall be treated as Zone 2(Figure 30.4-2B,Note 7,p.337) Effective Mean Roof Height of 15 feet Mean Roof Height of 20 feet Mean Roof Height of 25 feet Mean Roof Height of 30 feet Wind Zone Zone Zone Zone Area Location 4 5 4 5 4 5 4 5 ftz + - + - + - + - + - + - + - + - 10 37.8 -41.0 37.8 -50.6 40.2 -43.6 40.2 -53.8 42.1 -45.7 42.1 -56.4 43.7 -47.4 43.7 -58.6 20 36.1 -39.3 36.1 -47.2 38.3 -41.7 38.3 -50.1 40.2 -43.8 40.2 -52.6 41,8 -45.5 41.8 -54.6 50 Wall 33.8 -37.0 33.8 -42.7 36.0 -39.4 36.0 -45.4 37.7 -41.3 37.7 -47.5 39.2 -42.9 39.2 -49.4 100 32.1 -35.3 32.1 -39.3 134.1 -37.5 34.1 -41.7 35.8 -39.4 35.8 -43.8 37.2 -40.9 37.2 -45.5 S00 128.2 -31.4 28.2 -31.4 1 29.9 -33.3 1 29.9 -33.3 31.4 -35.0 31.4 -35.0 1 32.6 -36.3 132.6 1 -36.3 Garage Door Wind Loads for a Building with 30-foot Mean Roof Height a 1 1 "` Exposure C 1 Tables 1609.7(1)&(2),and Section 1609.3.1 1 1 1 I Effective Wind Area Wind Load 2 1 ',r.. 5'; 4 5 h.;. 2,, 1 5;i #; 5 h° Roof Angle 1 1 1 Width Height + 8 835.2 -39.8 0-10 j 1. Ga6'Ie Roof,. ., 10 10 34.1 -38.2 1. I-Iip,R`oof degrees 14 14 32.3 -36.1 For Effective Wind Areas between those given,values may be interpolated.Otherwise use the value associated with the lower Effective Wind Area. 9 7 >10 38.4 -43.4 End Zone(a)shall be the smaller of 10%of Least Hor.Dist.or 40%of Mean Roof Height('h'),but not less than 4%of Least Hor.Dist.or 3 ft. 16 7 degrees 36.8 -41.0 Identify the zone per the figure or information by others.Any questionable zone is to be considered the more critical zone. Design is based on the 3-second gust(wind velocity)for Risk Category II(general residential&commercial construction)per FBC 1620.2 Broward.These tables not for use with essential facilities or assembly occupancies. Page 2 of 2 FBC 6th Edition (2017) Formal Interpretation#5 Effective date; January 1, 2018