Laserfiche WebLink
1 <br /> SNYDER INDUSTRIES INC, DATE 9/3/2010 <br /> TANK RESTRAINT CALCULATIONS-SEISMIC &WIND ANALYSIS BY TAM <br /> JOB# El 0-071 <br /> PROJECT NAME SNYDER INDUSTRIES INC. <br /> i <br /> WIND DESIGN CRITERIA: <br /> Design is per ASCE 7-05 Section 6.5.15 DESIGN WIND SPEED= 150 MPH <br /> WIND SHEAR: F = gz.GCfAf Section 6.5.15 <br /> 00256K K K V21 = 53.49 PSF <15', Ex C Section 6.5.10 <br /> Where: qZ— . z Zt d ( p l <br /> G^ 0.80 Section 6.5.8 <br /> Cf= 0.80 Figure 6-21 <br /> Af= 15.57 FT2 <br /> KZ= 0.85 Table 6-3 <br /> Kzf= 1.0 Section 6.5.7.2 <br /> F W 533 LBS. Kd= 0.95 Table 6,4 <br /> I= 1.15 Table 6-1 <br /> Af= Height of primary tankdiameter of containment tank <br /> WEND DESIGN CABLE DESIGN -see below <br /> CABLE <br /> CONTAIN PRIMARY TANK <br /> TANK TANK DIAM TANK TANK WT Mot(FT- DL Mr Req'd Mc <br /> MODEL# MODEL# (FT) HT(FT) (LBS) F(LBS) LBS) (FT-LBS) (FT-LBS) He(FT) Ph (LBS) <br /> 1000500N 5740000N 3.58 4.35 125 533 _L1 60 300 860 3.5 246 <br /> NOTES: Wind shear calculated based on pressure noted above multiplied by the surface area of The tank(height*diameter). <br /> The wind force is applied at mldheight to calculate the overturning moment. The resisting moment is based on <br /> the empty weight of the tank acting act the centerline of the tank. In all cases,there is net overturning for wind <br /> on an empty tank. The tank has been stabilized for this condition by the addition of cable bracing. The cable and <br /> anchor forces are determined based on the force required at the top of the cable(Ph in Table above)to stabilize <br /> the tank for overturning in wind. In all cases, seismic forces govern for design of base shear anchorages. <br /> Note: Where seismic foces govern overturning,the required resisting moment(Mc in table above) <br /> corresponds to the net seismic overturning moment. <br /> TANK CAP Capacity of primary tank in gallons <br /> TANK DIAM Tank diameter of containment tank <br /> TANK HT Tank height of inner tank) <br /> TANK WT Weight of primary tank+containment tank <br /> Page 3 <br />