Laserfiche WebLink
API-653 APPENDIX B SHELL SETTLEMENT EVALUATION <br />Report No.:Canary 3134C <br />D H Roof Type L 1st Crs Plt Spec Y E <br />38.000 30.0 F 14.92 A 36M 36000 29000000 <br />Where: <br />D = Tank Diameter, in (ft) <br />H = Tank Height, in (ft) <br />Roof Type: F = fixed, O = Open <br />L = Arc length between measurement points, in (ft) (32' max) (greatest dist. allowed based on even # of points) <br />Y = Yield strength of shell 1st course , in pounds per (inch) ((psi)) <br />E - Young's modulus, in pounds per (inch) ((psi)) <br />Ɵ = Angle theta at elevation point, in degrees <br />PE = Predicted elevation, in (ft) <br />Ui = Measured out-of-plane settlement in relation to a cosine curve, in (ft) <br />Si = Deflection, in (ft), (out-of-plane distortion) <br />Smax = Maximum allowed deflection, in (ft), (out-of-plane distortion) <br />Smax =((L^2*Y*11)/2*(E*H)) = 0.051 (ft) <br />Point Elevation Ø PE Ui Si Results <br />1 3.480 0 3.474 0.006 0.016 SAT <br />2 3.460 45 3.480 -0.020 -0.016 SAT <br />3 3.460 90 3.474 -0.014 -0.004 SAT <br />4 3.460 135 3.460 0.000 0.000 SAT <br />5 3.460 180 3.446 0.014 0.004 SAT <br />6 3.460 225 3.440 0.020 0.016 SAT <br />7 3.440 270 3.446 -0.006 -0.016 SAT <br />8 3.460 315 3.460 0.000 0.000 SAT