plate calculator
Post on 30-Sep-2015
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Blast-SLBAPI RP-2FB Blast CalculationsUsing ASCE "Design of Blast Resistant Buildings in Petrochemical Facilities"CLIENT:PROJECT:8.3 psi (SLB)LOCATION:BY:DATE:Strength Level Blast ParametersBuilding GeometryHeightH8.5ftWidth Perpendicular to BlastB19.875ftWidth Parallel to BlastL8.00ftBlast ParametersMagnitude of Blast0.2615BarFRONT WALL LOADINGPeak Side On OverpressurePso.29 Bar X 14.5psi/bar =3.79175psiPositive Phase Durationtd0.1315secShock Front VelocityUU=1130*(1+0.058*Pso)^0.51248ft/sec(1130*(1+0.058*3.792)^0.5)Blast Wave LengthLwLw=U*td164.12ft1,248*0.13Blast Wave Reflection CoefficientCrCr=(2+0.05*Pso)2.2Drag CoefficientCd+1.0 front wall or -0.4 all others1.0Peak Reflected PressurePrPr=Cr*Pso8.30psiDynamic(Blast Wind) Pressureq0q0=0.022*Pso^20.316psi0.022*3.792^2Stagnation PressurePsPs=Pso+Cd*q04.11psi3.79+1.0*0.316Clearing DistanceSS=(the smaller of H or B/2)8.50ftClearing Timetctc=3*S/U
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