Laserfiche WebLink
SWIMMING POOL CALCULATIONS NOTATION <br />: specific compressive strength of concrete (psi) <br />ωc : weight of concrete (pcf) <br />: allowable extreme fiber stress in compression for concrete (psi) <br />: permissible shear stress carried by concrete (psi) <br />: modulus of elasticity of concrete (psi) <br />fy = 40000 : specified yield strength of reinforcement (psi) <br />fsall = 20000 [GRADE 40, 50], 24000 [GRADE 60]: permissible tensile strength in reinf. (psi) <br />Es = 29000000 : modulus of elasticity of reinforcement (psi) <br />γs : equivalent fluid pressure of soil (pcf) <br />: modular ratio of elasticity <br />b : width of compression face of member (in) <br />cover : 3 in. minimum for Concrete cast against and permanently exposed to earth. <br />SEE CALCULATION METHODOLOGY: <br />H : total height of pool wall including bond beam (ft) <br />RBB : distance from top of bond beam to surface of water (ft.) <br />R : Radius of pool wall curvature (ft) <br />t : thickness of pool wall at particular height (in) <br />d1 = t - d2 : distance from extreme compression fiber to centroid of tension reinforcement (in) <br />: d necessary to resist earth pressure and additional load due to vertical surcharge <br />d2 = cover + (Ds/2): distance from extreme compression fiber to centroid of tension reinforcement (in) <br />: d necessary to resist water pressure <br />H1 : top depth of particular section (ft)H2 : bottom depth of particular section (ft) <br />Hw : water depth (ft) <br />: over-turning moment (ft-lbs) : shear (lbs) <br />MR : Moment Resisting (ft-lbs) <br />MT = OTM + MR : Net Moment (ft-lbs) <br />VT = V : Net Shear (lbs) <br />As : area of nonprestressed tension reinforcement (in2) <br />Ds : Diameter of reinforcement (in) <br />: ratio of tension reinforcement <br />: average stress in the steel (psi) <br />: maximum compressive stress at the top of the compressive zone (psi) <br />: design shear stress (psi) <br />2 <br />2fc = TM <br />j k bd <br />υ = TV <br />bd <br />′c cE = 57000 f <br />υ ′c c = 1.1 f <br />′cf <br />S <br />C <br />En = E <br />′all cfc = 0.45f <br />γ 3 <br />2, <br />1OTM = 6 WH <br />ρ = sA <br />bd <br />ρ ρ ρ+ −2k = ( ) 2n n n −j = 1 3 <br />k <br />fs = T <br />s <br />M <br />A j d <br />γ 2 <br />2, <br />1V = 2 WH <br /> <br /> <br /> <br />1201 N. Tustin Avenue <br />Anaheim, CA 92807 <br />Fax: (714) 630-6114 <br />Phone: (714) 630-6100 <br /> <br /> <br /> <br /> <br /> <br />W:\Details\Release\Calcs 2019\660 [19v1].pdf 07/28/2020 03:38:34 PM © Pool Engineering, Inc. 2020, Page 2 of 18