Laserfiche WebLink
• <br /> SHUTLER CONSULTING ENGINEERS, INC. Job Name : Lee Johnson Hyundai <br /> Structural Engineers Job No. . <br /> 12503 Bel-Red Road, Suite 100 Engr: : jch <br /> Bellevue, washington 98005 Date: 3-31-2022 <br /> (425) 450-4075 Sheet No. : <br /> Retaining wall design program, Version 2.0, latest revision 3-8-2018 <br /> ************************* <br /> * RETAINING WALL DESIGN * <br /> ************************* <br /> Description: Site retaining wall Page 1 <br /> DESIGN CRITERIA <br /> Active earth pressure = 35.00 pcf <br /> Passive earth pressure = 250.00 pcf <br /> Wind load on exposed portion of the wall (LRFD) = 0.00 psf <br /> Seismic load do to soil pressure (LRFD) = 32.20 psf <br /> Seismic load do to wall weight (LRFD) = 51.20 psf <br /> Weight of soil = 110.00 pcf <br /> Surcharge height = 2.00 ft. <br /> Coefficient of friction = 0.35 <br /> Allowable soil bearing capacity = 3,000.00 psf <br /> Superimposed load on the wall > No <br /> Slab present to resist sliding > No <br /> Active pressure considered to bottom of footing. <br /> WALL AND FOOTING DIMENSIONS <br /> Unbalanced height of fill = 4.00 ft. <br /> Wall height above soil on high side = 0.50 ft. <br /> Depth to bottom of footing = 1.75 ft. <br /> Depth of key below footing = 0.00 ft. <br /> ( Toe dimension = 12.00 in. <br /> Stem thickness = 6.00 in. <br /> Heel dimension = 36.00 in. <br /> Total footing width = 4.50 ft. <br /> Footing thickness = 12.00 in. <br /> f'c of wall concrete = 3,000.00 psi. <br /> Fy of wall steel = 60,000.00 psi. <br /> f'c of footing concrete = 3,000.00 psi. <br /> Fy of footing steel = 60,000.00 psi. <br /> DESIGN SUMMARY <br /> Soil bearing less than allowable for all load cases. <br /> Factor of safety against sliding is OK for all load cases. <br /> Factor of safety against overturning is OK for all load cases. <br /> Shear reinforcing is not required in the footing. <br /> NOTES <br /> IBC-2018, Section 1807.2.3 states: <br /> "Retaining walls shall be designed to resist the lateral action of soil <br /> to produce sliding and overturning with a minimum safety factor of 1.5 in <br /> each case. The load combinations of Section 1605 shall not apply to this <br /> requirement. Instead, the design shall be based on 0.7 times the nominal <br /> earthquake loads, 1.0 times other nominal loads, and investigation with one <br /> or more of the variable loads set to zero." <br /> "EXCEPTION: Where earthquake loads are includes, the mimimum safety factor <br /> for retaining wall sliding and overturning shall be 1.1" <br /> This program uses a factor of safety = 1.1 for combinations including <br /> seismic loads, a factor of safety of 1.2 for combinations that include <br /> wind loads and a factor of safety of 1.5 for all other load cases. <br /> F <br />