7_CEG 4012 Notes Fall 2011 CEG 4012 Notes Fall 2011

7_CEG 4012 Notes Fall 2011 CEG 4012 Notes Fall 2011 - ... ,...

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84 I ~ 6 z 1-_'_\_,--1"0, r Circular Surface Load: o The stress increase at a point (A) on the axis beneath the center of a circular loaded area is "easily" determined by integrating the Boussinesq point solution over the loaded area. (same assumptions as before) da v = 30z 3 5 = 3{q r de dr)~3 21t(r 2 + Z2)"2 21t(r 2 + Z2)2 under center only o At other points under a circular load the integration becomes tedious and dimensionless "infl~ence" charls have been develo ed. next page. M, = q x I o 6m 12 m A :6
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Unformatted text preview: ... , C : D---------.. , , , , , , , E :F 12 m 12 m Cylindrical Water Tank 24 meter Diameter Tank Full To Depth Of 16 Meters Find t.av For Points A-G: Solution: First find q due to water load: pw = 1000 kg/m 3 , Yw = 9.81 kN/m 3 q = 16m (9.81 kN/m 3 ) = 157 kPa (same anywhere on surface under loaded area) Next set up table: (,(.c. .JI. ... ) a = 6/2 = 24 m 12 = 12 m calculate (zla) and (ria) for each point get influence value, I, from P&6 chart calculate t.a v = I x q...
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This note was uploaded on 02/10/2012 for the course CEG 4012 taught by Professor Staff during the Fall '08 term at University of Florida.

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