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. i <br /> Wind Uplift <br /> Simplified Procedure for Componenets and Cladding <br /> ASCE 7-10,Section 30.5 <br /> V= 145 mph Basic Wind Speed <br /> Exposure D ASCE 7-10,Section 26.7 <br /> 1= 1.47 Adjustment Factor for building height,ASCE 7-10,Figure 30.5-1 <br /> K�= 1 Topographic Factor,ASCE 7-10,Section 26.8.2 <br />� Roof Q= 23.0 deg <br /> sa„��,o�= 48 in Horizontal spacing of roof anchors <br /> A�;b= 12.80 sf Panel Area tributary to each roof anchor <br />' Pnet30 Net Wind Design Pressure,ASCE 7-10,Figure 30.5-1 <br /> Roof Zone �ne 1 Zone 2 Zone 3 As shown in ASCE 7-10,Figure 30.5-1 <br /> 31.5 psf 49.1 psf 89.3 psf <br /> p�e�=1Kitp„��o= Design Wind Uplift Pressure,ASCE 7-10,Equation 30.5-1 <br /> Zone 1 Zone 2 Zone 3 <br />' 46 psf 72 psf 131 psf <br /> p�ec= 16 psf Minimum Design Wind Pressure,ASCE 7-10, Section 30.2.2 <br /> Use 46 psf Use 72 psf Use 131 psf <br /> Connection to Existing Roof Framing <br /> F.S.= 1 Additional Factor of Safety applied to withdrawl force,if desired <br /> A�;b= 12.80 ftz <br /> DLPa1e�= 2.59 psf <br /> Zone 1 Zone 2 Zone 3 <br /> W„Pi;ft= 46 psf 72 psf 131 psf <br /> Piag=F.S.x A�,;b x(0.6D-0.6W) Withdrawl force for each roof anchor <br /> Zone 1 Zone 2 Zone 3 <br /> -335.21bs -267.21bs -246.91bs <br /> Connection Capacity <br /> db= 5/16 in Lag Screw diameter � <br /> DPen= 2.50 in Lag Screw penetration into existing framing member <br /> Southern Pine Species of wood framing <br /> CD= 1.6 Load Duration Factor for Wind Loading,NDS Table 2.32 ' <br /> C�= 0.7 Temperature Factor,NDS Table 103.4 <br /> W= 3071b/in Withdrawl Capacity,NDS Equation 11.2-1 <br /> W'=CD x C,x W= 3441b/in Adjusted withdrawl value <br /> Pauow=DPen x W'= 8591bs <br />' Zone 1 Zone 2 Zone 3 <br /> DEMAND= 3351bs 2671bs 2471bs , <br />� Max Load=0.390 OK <br />� CAPACITY= 859 Ibs 8591bs 8591bs <br />' • +� � <br /> Sheet 3 of 3 ' � - <br /> � � � - -' `-=' , -. <br />