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1 <br />LOAD CRITERIA <br />ROOF:CEILING: <br />ROOFING 4.0 psf FINISH 5.0 psf <br />FRAMING 4.0 psf FRAMING 3.0 psf <br />INSULATION 1.0 psf MISC 2.0 psf <br />CEILING 3.0 psf DL =10.0 psf <br />MEP 2.0 psf LL =10.0 psf <br />MISC 1.0 psf <br />DL =15.0 psf <br />Lr =20.0 psf <br />CURTAIN WALL: <br />FINISH 5.0 psf <br />FRAMING 3.0 psf <br />MISC 2.0 psf <br />DL =10.0 psf <br />SITE SPECIFIC SEISMIC FACTORS: <br />Ss =2.12 g Sds =1.70 g <br />S1 =0.77 g <br />WIND: <br />Given: <br />V =90 mph Kzt =1.00 <br />Kz =0.94 Kd =0.85 <br />qz = 0.00256 * Kz * Kzt * Kd * V ^ 2 <br />qz =0.00256 *0.94 *1.00 *0.85 *90 ^2 <br />qz =16.6 psf <br />p = qp * (GCp - GCpi) <br />pA1 =16.6 * (1.00 -0.00 ) =16.6 psf [Wall zone 4, pos press] <br />pA2 =16.6 * (-1.70 -0.00 ) =-28.2 psf [Roof zone 2, neg press] <br />pB1 = pA1 =16.6 psf [Wall zone 4, pos press] <br />pB2 =16.6 * (-1.10 -0.00 ) =-18.2 psf [Wall zone 4, neg press] <br />pA = pA1 - pA2 =16.6 --28.2 =44.7 psf GOVERNS <br />pB = pB1 - pB2 =16.6 --18.2 =34.8 psf <br />p =44.7 psf <br />HOLD- 420 W 17th <br />St3/7/2025