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® SIS&hill <br /> Tacoma,Washington Designed: OMA Date: 11/1/2022 Project Number: 19,933 <br /> 253-474-9449 Checked: CJT Date: 11/4/2022 8 <br /> Project: Emerald Court Carports <br /> LATERAL ANALYSIS, CONTINUED <br /> WIND DESIGN CRITERIA FOR MAIN WINDFORCE-RESISTING SYSTEM: <br /> Vertical forces applied to MWFRS will be determined using Directional Procedure,as <br /> outlined in Chapter 27 of the ASCE 7-16. <br /> Diagrams <br /> L L <br /> 4 ► <br /> 0.5L 0.5L 0.5L 0.5L <br /> 1.--11.CNNI/11 <br /> Cam, <br /> Wind <br /> Wind CNL CNW <br /> Direction <br /> Direction <br /> � j <br /> Y_p° <br /> h 0t r h 0( is(r <br /> ////////////////// ////////////////// <br /> Notation <br /> L.Horizontal dimension of roof,measured in the along-wind direction,ft(m). <br /> h=Mean roof height,ft(m). <br /> 7=Direction of wind,degrees. <br /> 0=Angle of plane of roof from horizontal,degrees. <br /> Net Pressure Coefficient, CN <br /> Wind Direction,r=0° Wind Direction,r=180° <br /> Clear Wind Flow Obstructed Wind Flow Clear Wind Flow Obstructed Wind Flow <br /> Roof Angle,8 Load Case Caw Ca, Caw Ca, Caw Coo Co.,,, Ca,. <br /> 0° A 1.2 0.3 -0.5 -1.2 1.2 0.3 -0.5 -1.21 <br /> B -1.1 -0.1 -1.1 -0.6 -1.1 -0.1 -1.1 -0.6 <br /> /.5" A -,,.6 -Ur -in -1., u.4 ..r -02 -1.2 <br /> ASCE 7-16 Table 27.3-4 <br /> B (CL25)=1.2:=atan ° roof slope, 1/4: 12, in degrees, use 0 deg. load coefficients <br /> 12 <br /> CASE A: CNWA:=1.2 CASE B: CNWB:=-1.1 <br /> CNLA:=0.3 CNLB:=-0.1 <br /> G:=0.85 as permitted by 26.11.4 <br /> PNWA:=gh•G•CNWA-11.9 psi (27.3-2) <br /> PNLA:-qh•G• CNLA-2.98 psi <br /> PNWB:=qh•G.CNWB=-10.91 psi <br /> PNLB:=qh•G•CNLB=-0.99 psi <br />