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LOCh 52 P Sheet: <br /> Project: Everett Job No.: 154191 <br /> Nevada:tin)3854.za2 Co a•505:(725)�--3_4.; Date: 2/14/2018 <br /> !Cabo:t2C6)342-716a A'C.rt5 f-3"" <br /> 2nd Floor Engineer: S.H. <br /> Chord Design - at PT <br /> ACI 318-14 Section 12.5 <br /> Diaphragm moment M = 10929 k-ft <br /> Slab thickness t= 9 in <br /> Slab depth d= 118.75 ft <br /> Section modulus S= 3E+06 in3 tdz <br /> S 6 <br /> Usable compression for seismic design P= 4.8 k/ft <br /> One foot wide area of compression force A= 108 in2 <br /> M P <br /> Tensile bending stress ft= -0.001 ksi ft = S A <br /> Concrete compressive strength f'c= 5000 psi <br /> Maximum allowable bending stress=rupture stress fr= 0.5303 ksi fr = <br /> No additional chord reinforcement required <br /> Lochsa Engineering www.lochsa.com 1-866-606-5 14 <br />