Laserfiche WebLink
Wind Load Cont. <br />95 mph ASCE 7-16 Figure 26.5-1B <br />C <br />1.0 ASCE 7-16 Sec 26.8.2 <br />0.85 ASCE 7-16 Table 26.10-1 <br />0.85 ASCE 7-16 Table 26.6-1 <br />1.00 ASCE 7-16 Table 26.9-1 <br />16.62 psf <br />23.0 Degrees <br />1.5 Conservatively assuming all exposed <br />0.8 conservatively assuming 10 ft2 effective area <br />Uplift (W)Zone(1) Zone(2r) Zone(2e)Zone(3) <br />Fig. 30-3-2 GCp=-1.8 -2.2 -2.2 -2.1 <br />Eq. 29.4-7 P=qh(GCp)(γE)(γa)=-35.90 -43.88 -43.88 -41.88 <br />GCp=0.7 Figure 30.3-2 <br />P=qh(GCp)(γE)(γa)=10.47 Equation 29.4-7 <br />Rafter Attachments: 0.6D+0.6W (CD=1.6) <br />Connection Check <br />Attachment max. spacing= 6 ft <br />5/16" Lag Screw Withdrawal Value= 266 lbs/in Table 12.2A - NDS <br />2.5 in DFL Assumed <br />Prying Coefficient 1.4 <br />Allowable Capacity= 760 lbs <br />Zone Trib Width Area (ft) Uplift (lbs) Down (lbs) <br />Zone(1) 6 16.5 288.8 222.3 <br />Zone(2r) 6 16.5 348.1 222.3 <br />Zone(2e) 6 16.5 348.1 222.3 <br />Zone(3) 6 16.5 333.2 222.3 <br />Conservative Max= 348.1 < 760 <br />CONNECTION IS OK <br />Risk Category = <br />KZ = <br />Kd = <br />Ke = <br />2. Embedment is measured from the top of the framing member to the tapered tip of a lag screw. <br />Embedment in sheading or other material does not count. <br />II <br />V= <br />Exposure = <br />1. Pv seismic dead weight is negligible to result in significant seismic uplift, therefore the wind uplift <br />governs <br />γE= <br />γa= <br /> KZt = <br />qh= 0.00256KzKztKdKeV2= <br />Pitch = <br />Lag Screw Penetration <br />projects@evengineersnet.com <br />http://www.evengineersnet.com <br />1230 W River Ln <br />12/15/22