Laserfiche WebLink
I Lochsa Client: Sheet: <br /> e n g i n e e r� f n g Project: Everett Job No.: 154191 <br /> Nwado:(702)365-9312 Colorado:(720)344.3246 Date: 5/2/2018 <br /> Idaho:(208)342-7166 Alberta(367)774-00.40 <br /> 3rd Floor Engineer: S.H. <br /> Chord Design - at Pour Strip <br /> ACI 318-14 Section 12.5 <br /> Diaphragm moment M = 42000 k-ft <br /> Slab thickness t= 12 in <br /> Slab depth d= 118.75 ft <br /> M <br /> Tension in chord T= 372.3 k T <br /> Yield stress of reinforcement fy= 60 ksi 0.95d <br /> Strength reduction factor = 0.9 T <br /> Required area of reinforcement As_req= 6.894 in2 As req = —fy <br /> Rebar size #8 <br /> Number of bars 10 <br /> Area of reinforcement Avf= 7.9 in2 : .__. <br /> Usable compression for seismic design P= 4.8 k/ft <br /> Concrete compressive strength f'c= 5000 psi <br /> Strength reduction factor ck= 0.6 <br /> Diaphragm concrete shear capacity 4 Vc= 12.22 k/ft OK = cf)2A f'cAc„ <br /> Diaphragm steel shear capacity 4Vs= 2.88 k/ft OK = OP <br /> Diaphragm shear capacity On= 15.1 k/ft OVn, = cVc + OVS <br /> Required length of chord bars L= 24.658 ft L = T <br /> q5vn <br /> Summary: Use(10)#8 bars x 25ft min. <br /> Lochsa Engineering www.lochsa.com 1-866-606-VKA13 <br />