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2039 S Van Ness Ave - Plan
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2039 S Van Ness Ave - Plan
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Last modified
6/1/2025 12:00:28 PM
Creation date
6/1/2025 12:00:19 PM
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Plan
Permit Number
20181513
101117472
Full Address
2039 S Van Ness Ave
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101117472 - Permit
(Permit - Plan)
Path:
\Building\Permits\V\Van Ness Ave\2039 S Van Ness Ave
20181513 - Permit
(Permit - Plan)
Path:
\Building\Permits\V\Van Ness Ave\2039 S Van Ness Ave
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LAG SCREW ANALYSIS <br />Loads <br />Wind Pressures qz =-51.81 psf <br />Solar Panel Load QD =3 psf <br />Panel Length l =5.758 ft <br />Panel Width b 3.405 ft <br />Attachment Spacing s =6 ft <br />Portrait <br />Tributary Area At =17.28 ft2 <br />Wind Load PW = qz * At =-895 lbs <br />Dead Load PD = QD * At =51.825 lbs <br />Uplift Pa = 0.6 PD + 0.6 Pw =-506 lbs <br />Landscape <br />Tributary Area At = b * s =10.215 ft2 <br />Wind Load PW = qz * At =-529 lbs <br />Dead Load PD = QD * At =30.645 lbs <br />Uplift Pa = 0.6 PD + 0.6 Pw =-299 lbs <br />Lag Screw <br />Specific Gravity of Lumber SG =0.50 (Douglas Fir-Larch) <br />Diameter of Lag Screw D =5/16 in <br />Withdraw Design /in 1800*SG3/2*D3/4 =266 lbs/in <br />Depth of Embedment lp =2.50 in <br />Total Nominal Withdrawal Value W = W * l p =665 lbs <br />Load Duration Factor CD =1.6 <br />Withdrawal Design Value W' = W * C D =1064 lbs <br />Demand Capacity Ratio DCR = Pa / W'=0.48 < 1 OK <br />2039 S Van Ness <br />Ave11/21/2023
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