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F <br /> 1201 N. Tustin-.enue <br /> ineering Anaheim, CA 92807 <br /> Fax: (714) 630-6114 <br /> Phone:(714) 630-6100 <br /> SWIMMING POOL CALCULATIONS NOTATION <br /> fl : specific compressive strength of concrete(psi) <br /> weight of concrete(pcl) <br /> fc„ =0.451, : allowable extreme fiber stress in compression for concrete(psi) ACI 318-99 Section A.3.1(a)1 <br /> u, =1.1 f. : permissible shear stress carried by concrete (psi)ACI 318-99 Section A.3.1(b)t <br /> E- =5700011f' ; modulus of elasticity of concrete(psi) ACI 318-99 Section 8.5.1 <br /> fy =40000 :specified yield strength of reinforcement(psi) <br /> fsm,=20000[GRADE 40,501,24000[GRADE 60] :permissible tensile strength in reinf. (psi) ACI 318-99 Section A.3.21 <br /> Es=29000000 :modulus of elasticity of reinforcement(psi) ACI 318-99 Section 8.5.21 <br /> Y. :equivalent fluid pressure of soil(pcf) <br /> n= E :modular ratio of elasticity <br /> EC <br /> b :width of compression face of member(in) <br /> cover :3 in.minimum for Concrete cast against and permanently exposed to earth. ACI 318-99 Section 7.7.1(a)1 <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(f.) <br /> R : Radius of pool wall curvature(ft) <br /> t :thickness of pool wall at particular height(in) <br /> d,=It-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+(D,/2) :distance from extreme compression fiber to centroid of tension reinforcement(In) <br /> d necessary to resist water pressure <br /> H, :top depth of particular section(ft) H2 :bottom depth of particular section (ft) <br /> H. :water depth(ft) <br /> OTM=6 yH2W :over-turning moment(ft-lbs) V= 2 yH,2 , :shear(lbs) <br /> MR :Moment Resisting (ft-lbs) <br /> MT=OTM+MR :Net Moment(ft-lbs) <br /> VT=V : Net Shear(Ibs) <br /> A. :area of nonprestressed tension reinforcement(tn2) <br /> D, : Diameter of reinforcement Cin) <br /> P= <br /> A :ratio of tension reinforcement <br /> A. <br /> k= (pn)=+2pn-pn I -1 3 <br /> fs= Mr :average stress in the steel(psi) <br /> A,j d <br /> fc= 2M'z :maximum compressive stress at the top of the compressive zone(psi) <br /> jkbd <br /> v= Vr :design shear stress (psi) <br /> bd <br /> Per ACI 318-11 Section RIA,The Alternate Design Method of the 1999 Code may be used in place of the applicable <br /> sections of the 2011 code. <br /> W IDetails\ReleaselCaIcs 20131100NC CBC2013(v1.40].pdf 10/09@013 01:28:50 PM O Pool Engineering,Inc.2013,Page 43 of 51 <br />