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SITTS & HILL ENGINEERS, INC. I <br /> TACOMA, WASHINGTON (253)474-9449 JOB: 17659 <br /> DESIGNED: EMF DATE: 01/13/2019 24 <br /> PROJECT: SITE PUMPED INDUSTRIAL WASTE CHECKED: BKL DATE: 01/13/2019 <br /> One Way Shear Strength: <br /> The concrete within the precast panel is adequate to resist the localized effect of punching <br /> shear, and the entire panel cross section is checked to resist the global effect of one way shear. <br /> The edge channels act as shear reinforcement for the section, and both the concrete shear <br /> strength of the panel and the steel shear strength of the edge channels contribute to one way <br /> shear resistance. , <br /> OV,,:_ •Z f •v•d kip=29.62 kip Concrete design shear strength per ACI <br /> 1000 318-14 Equation 22.5.5.1 <br /> t,,,:=0.487 in Channel web thickness <br /> d:=8 in Channel depth <br /> h:=6.125 in Channel distance between flanges minus <br /> corner radii <br /> Fy:=36 ksi Channel yield strength <br /> E:=29000 ksi Steel modulus of elasticity <br /> k„:=5 Per AISC 360 Section G.2.1(b) <br /> h =13 < 1.1• k„•E=69.8 ... C,;:=1 Per AISC 360 Equation G2-3 <br /> t,,, Fy <br /> DVS:=0.9.0.6•Fy•d•t,,,•C,,=75.74 kip Per AISC 360 Equation G2-1 <br /> 01/„:_0V,.+2 OV,=181.09 kip > P,,=104.71 kip One way shear strength OK <br /> Precast Concrete Panel Flexural Strength <br /> The precast concrete panels will be reinforced with #5 reinforcing bars at 6" O.C, each <br /> way at the bottom face of the panel and with #4 reinforcing bars at 6" O.C. each way at <br /> the top face of the panel. Per the attached Enercalc beam analysis of the precast <br /> concrete panel spanning over the width of the trench, the panels can resist an entire <br /> wheel load in flexure and are found to be OK. <br /> P7,,,,,,1:=P=65.45 kip Precast panel design load I <br /> Channel Strength: <br /> The channels in the welded steel frames are checked for their ability to resist 50% of the <br /> wheel load in flexure. This load distribution is based on the assumption that the wheel <br /> load location and load transfer within the precast assemblies will ensure that no single <br /> channel sees more than half of a single wheel load. Per the attached Enercalc <br /> analyses, the channels are OK in flexure. <br /> 0.5 P=32.72 kip Channel design load <br />