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LAGGING DESIGN�x.,�,,,��,:.�, <br /> WALL GEOMETRY <br /> Wall Ht= 6 ft Earth Pressure= 35 pcf <br /> Pile Spacing= 6 ft Seismic Load= 7 pc( <br /> DESIGN LOADS <br /> Soil Load = 19G.88 plf Worst case loading applied over"D"of hottom lagging <br /> Sei;mit Load = 39.38 plf <br /> GOVERNING LOADS <br /> D� N 196.88 plf ASCE 2A.1 load wsc 2 <br /> 0.6D�0.7E+H = ?24.4a plf ASCE ?.4.1 load case 8 <br /> LAGGINGPROPERTIES oer2oo5r+�5 <br /> Lagging Siie= 4x12 HFN2 <br /> Pressure Treated= Yes <br /> Load Duration= Permanent <br /> W= 3.5 in Cp- 0.90 C�, 110 C,��_ 0.80 <br /> D= 11.25 in C�,�„m,<. 1.6 Ci�, 1.10 C,�,,, 1.00 <br /> A= 3938 in7 C�,,�s, 1.00 C,_ 1.15 <br /> 5= 22.97 in3 Cn��„ 0.97 <br /> Fe= 850 F'p=Fp'Cp'C�,�'C�'C�„'C,'C,= 851.598 psi F'S,�„m,�= 1513.95 psi <br /> �,= 150 F'v=fv'Co'C�,�.C,= 130.95 psi F'„�,;,.,�= 186.24 psi <br /> BENDING DESIGN <br /> Load Case 2 Load Case 8 <br /> M.,�x„=WLZ/8 885.9 FtN h1�,��=WL=/8 1010.0 FtN <br /> (b=M/S= 4G2.9 psi fb=M/S= 527.G57 psi <br /> fb/f'b= 54.4Y fb/F'b= 3a.9°'� <br /> SHEAR DESIGN <br /> Load Case 2 Load Lasc 8 <br /> V,.,,,,=Wl/2 = 590.6 tl Vn„�=WL/2 = 673.3 ti <br /> fv=3/2'V/A= 22.50 psi fv=3/2'V/A= 25.65 psi <br /> fv/F'v= 17.296 (v/F'v= 13.8".6 <br /> SUMMARY <br /> Lagging Site= 4x12 HFtJ2 Governing Load Case= 0.6D+W+H <br /> Max Pile Spacing= 6 ft Bending Stress= 54.4^; OK <br /> Max Retained H[= G fl Shear Slress= 17.295 OK <br /> �� Urscnplion 117� �Ml Datc 7�23�12 <br /> lagging Design ci�«�:�� ,�C <br /> ENGINEERING s�,i� yi;«,�,, <br /> 2?0 4th A�e Sou�h ���c� inh uo <br /> tiuite 200 Schenck Residence Retaining Wall 12080 I� <br /> f_dmunds, 1VA 98020 <br />