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Truss Repair for: Truss F9 that is overstressed (2 y , Structural Details Provided by: <br /> 3955 Cherry Avenue ' ) Job Becklin & Whitney <br /> undsen reqd. Repair also addresses tMb7l7.610 s bKOck 139 1st Ave. E. Ste 200 agemH1 <br /> Orono, MN buckled plate on top chord. <br /> O <br /> 1-2. P.O. Box 471 <br /> 01)8 2-3-7 i 0 3 Cambridge, MN 55008 1:54.2 <br /> Step 1: glue and nail (1) 2x6"x14' SPF <br /> #2 or better to (1) side of the top chord <br /> (flush to top)with construction adhesive <br /> and 10d nails 4" O.C. or Simpson <br /> SDW22458 4-5/8" screws 6" O.C. 4x10= 3x6 FP= <br /> 1.5x3 H 3x6 3x4 4x5= 3x4= 1.5x3 II 3x4= 1.5x3 11 <br /> 1 2 3 4 T1 5 6 7 8 9 111 12 13 14 15 16 T3 17 18 <br /> �' B3 / \ 1 <br /> 31 <br /> cn <br /> .i7 <br /> 2 = 141-211 24 23 2 21 20 19 <br /> L 8= 3x6 FP= 4x12= 4x8= 'x4= 3x6= 3x6= <br /> Step 2: glue and nail (1) 2x4"' SPF <br /> Step 3: glue and nail (1) 8"x48"x3/4" #2 or better to (1) side of the web <br /> thick plywood to (1) side of the (trimmed to fit snug to new 2x6" <br /> bottom chord (flush to bottom and and lapping bottom chord) with <br /> centered over joint) with construction construction adhesive and 10d <br /> Plate Offsets(x,Y) adhesive and 8d nails 4" O.C. or nails 4" O.C. or Simpson — <br /> LOADING(psf) Simpson SDW22338 3-3/8" screws DEFL. SDW22458 4-5/8" screws 6" O.C. <br /> TCLL 40.0 6" O.C. into bottom chord and webs. Vert(LL) - .24 25-26 >999 480 MT20 197/ 44 <br /> TCDL 10.0 A Vert(TL) -0.38 25-26 >682 240 <br /> BCLL 0.0 Rep Stress Incr YES WB 0.95 Horz(TL) 0.05 22 n/a n/a <br /> BCDL 5.0 Code MNSRC/TP12002 (Matrix) Weight:133 lb FT=0%F,0%E <br /> LUMBER- BRACING- <br /> TOP CHORD 2x4 SPF No.2(flat) TOP CHORD Structural wood sheathing directly applied or 6-0-0 oc purlins, except <br /> BOT CHORD 2x4 SPF No.2(flat) end verticals. <br /> WEBS 2x4 SPF Stud(flat) BOT CHORD Rigid ceiling directly applied or 6-0-0 oc bracing. <br /> REACTIONS. (lb/size) 29=786/0-5-8 (min.0-1-8),19=129/0-5-8 (min.0-1-8),22=1944/0-5-8 (min.0-1-8) <br /> Max Uplift19=-185(LC 2) <br /> Max Grav29=800(LC 2),19=350(LC 3),22=1944(LC 1) <br /> FORCES. (Ib)-Max.Comp./Max.Ten.-All forces 250(Ib) Note: All rows of fasteners to be <br /> TOP CHORD 2-3=-2093/0,3-4=-2093/0,4-5=-2702/0,5-E <br /> 8-9=-1909/0,9-10=0/483,10-11=0/483,11- installed into center of existing truss <br /> 14-15=0/2029,2 127-28=0/2560,2 127=0/256 members. End distance of fasteners <br /> BOT CHORD 28-29=0/1246,27-28=0/2560,26-27=0/256 <br /> 22-23=-2143/0,21-22=-2053/0,20-21=-138 to be a min of 1-3/4". Edge distance <br /> WEBS 2-29=-1430/0,2-28=0/982,4-28=-541/0,6 <br /> 9-23=-1491/0,11-23=0/1923,11-22=-1234/ of fasteners to be a min of 3/4". <br /> 15-20=0/781,15-21=-1173/0,13-21=0/615, <br /> NOTES- <br /> 1)Unbalanced floor live loads have been considered for this design. <br /> 2)Attach ribbon block to truss with 3-10d nails applied to flat face. <br /> 3)Provide mechanical connection(by others)of truss to bearing plate capable of withstanding 185 lb uplift at joint 19. <br /> 4)"Semi-rigid pitchbreaks with fixed heels"Member end fixity model was used in the analysis and design of this truss. <br /> 5)Recommend 2x6 strongbacks,on edge,spaced at 10-0-0 oc and fastened to each truss with 3-10d(0.131"X 3")nails. Strongbacks to be <br /> attached to walls at their outer ends or restrained by other means. <br /> 6)CAUTION,Do not erect truss backwards. <br /> LOAD CASE(S)Standard <br /> I HEREBY CERTIFY THAT THIS PLAN, <br /> SPECIFICATION, OR REPORT WAS <br /> PREPARED BY ME OR UNDER MY <br /> DIRECT SUPERVISION AND THAT I AM A <br /> DULY REGISTERED PROFESSIONAL <br /> ENGINEER UNDER THE LAWS OF THE <br /> \Pkft M A. <br /> STATE OF MINNESOTA. <br /> : LICENSED •" ledveigier4-v <br /> o•PROFESSIONALENGINEER - <br /> ti\ 28494 .t <br /> 9� •..- ��o�Qz <br /> ; WILLIAM A. BECKLIN, P.E. <br /> �'FOp n+I1NN�,` DATE: January 9, 2018 LIC. NO. 18494 <br />