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Date: 19-Mar-18 <br /> STARK v Foundation Underpinning Designed by: NDS <br /> L FOUNDATIONS 0 <br /> a 3212 16th Street,Everett,Washington <br /> Job No.: 18.029.RFS <br /> Push Pier Design-Worst Case <br /> Vertical Design Loads: <br /> Tributary Widths: <br /> Roof= 17 ft ---> 255 plf <br /> Third Floor= 0 ft —> 0 plf <br /> Second Floor= 6 ft —> 90 plf <br /> First Floor= 6 ft ---> 90 plf <br /> Walls= 16 ft —> 128 plf <br /> Foundation Wall(height)= 8 ft ---> 800 plf <br /> FDL= 1363 plf <br /> Live: <br /> Roof(snow)= 17 ft —> 425 plf <br /> Third Floor= 0 ft --> 0 plf <br /> Second Floor= 6 ft —> 240 plf <br /> First Floor= 6 ft —> 240 plf <br /> FLL= 905 plf <br /> Max Pier Trib Width= 8 ft <br /> Pier Working Loads: <br /> Poi= 10904 lbs <br /> 0.75*Pu_= 5430 lbs <br /> Pn= 17000 lbs <br /> Ultimate Design Load,PuLT= 34000 lbs <br /> Pier Design: <br /> Pier Type: Push Pier 0 <br /> Shaft Diameter: 2.875" QI <br /> Installation Pressure,P: <br /> Quit= 2(PTL) <br /> 34000 lbs <br /> Therefore,P= Quit(10,000 psi/50,000 lbs) (25T Ram rated at 10,000 psi) <br /> 6800 psi(min) <br />