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• <br /> I : ( 0 )365-9312 <br /> Idaho: (208)342-7168 lochs a <br /> Colorado: (720)644-9246 engineering <br /> Alberta: (587)774-9040 <br /> SIMPSON SIMPSON STRONG-TIE COMPANY INC. <br /> 5956 W.Las Positas Blvd.. Pleasanton,CA 94588. <br /> Strong-Tie (800)999-5099 <br /> www.stronatie.com <br /> Wood Compression Member Design Continued <br /> Compression' Tofal I Fc i I i I Bearing Stability <br /> Level' Demand ' Loca- 1 Wall}Lumber: Species/ I Area i le d I Fe I E <br /> (gpo tion )Type Grade (son)1 (ft) i (in) PBS (ka) 1 (ksi) 1 Gf Cp Cap. Cap. <br /> �___! I .._ I (ksl) i (kips) (kips) <br /> � ...-._ �. <br /> 72.20 1 PA Side'6x 48(1)8x101 DFL Not '10450 878 i550I075d 1.000 160041.00i0618 78.`38_1103.35 <br /> I _) l �.._ �� i_.. 1�_._ <br /> Notes: <br /> (1) Euler critical budding stress for columns Fee=0.822(Emin'y(le/d)e for 2005 NOS. <br /> Emin':(1.03(E)(1-1.645(COVe)N!1.66. <br /> CoVe=025 for Solid Sawn Lumber and 0.10 for Structural Composite Lumber. <br /> (2)Limiting compressive stress Foe=Fc(Cd)(CO <br /> (3) Column stability fader Cp=(14Fce)FCy2c-(((leFce/Fcp2c)2-(Fce1Fc'yc)'* <br /> (4)Stability capacity=Fc(CdXCMCp)(A) <br /> (5) Load duration factor.Cd=1.6 <br /> (6)Colurm bearing factor Cis=1.0 <br /> (7)C=0.8 for Solid Sawn lumber and 0.9 for Structural Composite Lumber <br /> (8) Bearing capacity=(Fc perp)(A)(Cb) <br /> (9)to is the actual length of compression member. <br /> (10)Fe p.m Is based on the wall plate species. <br /> (11)The lumber listed is the number of compression posts on each side of the rod. <br /> (12)Lumber listed in grey cells fits into 4-nominal walls. Lumber listed in white cells fits into 6'nominal walls. <br /> (13) PSL Lumber is needed for wall plates at this level. <br /> Version:3.0.1b Page 26 of 29 <br /> Lochsa Engineering www.lochsa.com 1-866-606-9784 <br />