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<br />PAGE 5 <br /> <br />LENGTH <br /> <br />DIAGONAL BRACES <br /> <br />WIDTH <br /> <br />LE <br />SEGMENT LGTH LST-- LST = 10.6l:FT <br />3 <br /> <br />WI <br />SEGMENT LGTH LSL--- LSL =4.667FT <br />3 <br /> <br />REACflONS <br /> <br />RST= LST' WET RST = 562.175 <br /> <br />RSL=LSL.WEL RSL =307.439 <br /> <br />DIAGONALS <br /> <br />01=[ (~Ir + (L:rfS <br /> <br />D2=[ (~Ir + (\ErfS <br /> <br />01 = 11.643 <br /> <br />D2 = 11.643 <br /> <br />COMPRESSION IN DIAGONALS <br />PT- Dl.RST PT = 1402.566 PL- Dl ,RSL <br />LSL LST <br /> <br />PL =335.575 <br /> <br />PTOT= PT + PL <br /> <br />PTOT = 1738.141 LB <br /> <br />WOOD IN COMPRESSION <br /> <br />BASED ON TIMBER CONSTRUCTION MANUAL, P110 ET SUBS. <br />SIMPLE SOLID RECTANGULAR MEMBERS, VIS. GRADE, SAWN <br /> <br />EQ 5-3 <br />INPUT <br />INPUT <br />INPUT <br /> <br />F'e = 0.3 X E' I (lcld)2 <br />dx=3,5 <br />dy = 1.5 <br />PAz 1738 LB <br /> <br />PSI, ALLOWABLE LOAD <br />PTOT = 1738.141 <br /> <br />FA= PA <br />dx.dy <br /> <br />E=Eb <br />K=0.65 <br /> <br />FA =331.048 ACTUAL LOAD, PSI <br /> <br />TABULAR MODULUS OF ELASTICITY, MODIFIED E = 1.40106 <br />FROM TABLE 5-4, FOR RESTRAINED COL ENDS <br /> <br />REARRANGING EG ~3: <br /> <br />(dx) ( E )0.5 <br />LAx= K ' 0.3, FA <br /> <br />LAx = 191.794 ALLOWABLE LENGTH, IN. <br />FOR dx <br /> <br />(dY) ( E )0,5 <br />LAy- K ' 0,3. FA <br /> <br />LRI-Dl'12 <br />LR2=D2.12 <br /> <br />LAy =82.197 ALLOWABLE LENGTH, IN. <br />FOR dy <br /> <br />LRl =139,714 REQUIRED LENGTH, IN. <br /> <br />LR2 = 139,714 REQUIRED LENGTH, IN. <br /> <br />USE DOUBLE 2 X 4 OR 4 X 4 OR BRACE 2 x 4 DIAGONAL AT CENTER <br />