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<br />ST87315
<br />
<br />AT3GE1
<br />
<br />y y
<br />
<br />PIGGYBACK TRUSS
<br />
<br />
<br />4-8-8
<br />4.8-8
<br />
<br />
<br />(optional)
<br />n ustnes, Inc. Mon
<br />
<br />
<br />5.00[12
<br />
<br />4x4 =
<br />7
<br />
<br />SEE MiTek STANDARD PIGGYBACK TRUSS CONNECTION
<br />DETAIL FOR CONNECTION TO BASE TRUSS
<br />
<br />All plates are 2x4 M20 unless otherwise indicatecl.
<br />
<br />19.91 [T2
<br />
<br />
<br />3x7::;; 4
<br />8x8 .;;:.
<br />
<br />10
<br />
<br />3x7 "'"
<br />
<br />2
<br />
<br />33
<br />II 2
<br />
<br />32
<br />II 2
<br />
<br />31
<br />" 2
<br />
<br />30 34
<br />112x II 2
<br />
<br />35
<br />II 2
<br />
<br />II
<br />
<br />
<br />0:;> 0
<br />N 'N
<br />,:, ,:,
<br /> 29 28 2726 25 24 23 22 21 20 19 18 17 16 15 14
<br /> 4x8 /; 2x6 " 2x6 II 2x6 II 2x6 II 6x8 ::= 2x6 II 2x6 II 2x6 II 2x6 II 2x6 II 4x8 \\
<br /> 2x6 " 2x6 II 2x6 " 2x6 "
<br /> 5-0.0 I 19-0.0 I 24-0-0 -I
<br /> 5.0.0 14-0-0 5.0-0
<br />
<br />LOADING (psI) SPACING 2-0-0 CSI DEFL in (Ioc) IIdef! PLATES GRIP
<br />TCLL 20.0 Plates Increase 1.25 TC 0.13 Vert(LL) 0.00 29 >999 MII20 197/144
<br />TCDL 7.0 Lumber Increase 1.25 BC 0.09 Vert(TL) 0.00 1 >999
<br />BCLL 0.0 Rep Stress Incr YES WB 0.19 Horz(TL) 0.01 13 nla
<br />BCDL 10.0 Code FBC/ANSJ95 (Matrix) 1st LC LL Min I/def! = 240 Weight: 257 Ib
<br />
<br />LUMBER
<br />TOP CHORD
<br />
<br />2 X 6 SPF No.2 *Except*
<br />4-72 X 4 SPF No.2, 7-102 X 4 SPF No.2
<br />2 X 8 SPF No.2
<br />2 X 4 SPF No.2 *Except*
<br />4-102 X 6 SPF No.2
<br />2 X 4 SPF No.2
<br />
<br />BRACING
<br />TOP CHORD
<br />BOT CHORD
<br />
<br />Sheathed or 6-0-0 oc purlins.
<br />Rigid ceiling directly applied or 10-0-0 oc bracing.
<br />
<br />[P]
<br />
<br />BOT CHORD
<br />WEBS
<br />
<br />OTHERS
<br />
<br />REACTIONS
<br />
<br />(Ib/size)
<br />
<br />1=185/24-0-0,13=184/24_0_0, 22=10124-0-0, 21=127/24-0.0, 23=139/24-0-0, 24=152/24-0.0,
<br />25=87/24.0.0,27=83/24_0.0, 28=143/24-0-0, 20=146/24-0-0,19=150/24-0-0,18=88/24_0_0,
<br />16=83/24-0-0,15=143/24-0-0,26=80/24_0_0,17=80/24_0_0
<br />1=-404(load case 2)
<br />1=-298(/oad case 2), 13=-214(1oad case 3), 21=-5(1oad case 3), 23=-90(load case 4),
<br />24=-135(/oad case 4), 25=-25(load case 4), 27=-254(load case 4), 28=.518(load case 4),
<br />20=-83(1oad case 5), 19=-141 (load case 5), 18=-10(load case 5), 16=-244(load case 5),
<br />15=-521 (load case 5), 26=-50(/oad case 3)
<br />1=478(load case 4), 13=408(load case 5), 22=10(load case 7), 21=127(load case 1),
<br />23=139(load case 1), 24=154(load case 7), 25=92(load case 7), 27=141 (load case 2),
<br />28=186(load case 2), 20=146(load case 1), 19=152(load case 8), 18=92(load case 8),
<br />16=129(load case 3), 15=189(load case 3), 26=200(load case 5), 17=155(load case 4)
<br />
<br />Max Horz
<br />Max Uplift
<br />
<br />Max Grav
<br />
<br />FORCES (Ib). First Load Case Only
<br />TOP CHORD 1-2=-109,2-3=-110,3-4=-55,10_11=_55, 11-12=-110, 12-13=.109,4-5=-63,5.6=-55,6_7=.49,7_8=_49,
<br />8-9=-54, 9-10=-63
<br />BOT CHORD 1-29=0, 1-28=34,27-28=32,26-27=32,25-26=32,24_25=32, 23-24=32, 22-23=32, 21-22=32, 20-21=32
<br />,19-20=32,18,19=32,17-18=32,16_17=32, 15-16=32, 13-15=34, 13-14=0
<br />WEBS 4-33=,11,32-33=1,31-32=-5,30_31=,5,30_34=_5, 34-35=-5, 35-36=1, 10-36=-11,21.30=_93,
<br />23-31=.105,24-32=-110,25-33=_53,3_27=_49, 2-28=-103, 20-34=-105, 19-35=-110, 18-36=-53,
<br />11-16=-49,12-15=-103,4-26=_70,10_17=_70, 6-31=-95, 5.32=-144, 8-34=-95, 9-35=-144, 7-30=-92
<br />
<br />NOTES
<br />1) This truss has been checked for unbalanced loading conditions.
<br />2) This truss has been designed for the wind loads generated by 130 mph winds at 15 ft above ground level, using 7.0
<br />psf top chord dead load and 7.0 psf bottom chord dead load, in the gable end roof zone on an occupancy category f,
<br />conditionl enclosed building, with exposure C ASCE 7-98 per FBC/ANSI95 If end verticals or cantilevers exist, they
<br />are exposed to wind. If porches exist, they are not exposed to wind. The lumber DOL increase is 1.33, and the
<br />plate grip increase is 1.33
<br />
<br />~~
<br />MAR 1 8 200S
<br />
<br />Continued on page 2
<br />
<br />A WARNING. Verify design parameters and READ NOTES ON THIS AND REVERSE SIDE BEFORE USE.
<br />Design volicJ for use only with MiTek connectors. This design is based only u~on parar.n~:ers Sho~~, and I~ for on Individual ~uilding cO,mponent
<br />Appllcabllitv of design parameters and proper incarporatlon of component IS responSibility of bUilding designer. not truss deSigner. BraCing shown
<br />for lateral support of IndiVidual web members only. Additional temporary bracing to Insure stabillly dUring construction IS the responSibility of the
<br />mector Adlj,t,onal permanent bracing of fhe overall structure is the responsibility of the bUilding .deslgner. For general gUldonce regarding
<br />fabrication, quality control. storage. delivery, erection and bracing, consult ANSI/TPll Quollfy Cntena. DSB-89 and BCSll 8ulldlng Component
<br />Safety Information available from Truss Plate Institute, 583 D'Onofllo DlIve, Madison, Wi 53719,
<br />
<br />14515 N, Outer Forty, Mil
<br />Suite #300
<br />Chesterfield. MO 63017 --@
<br />
<br />
<br />MiTek@
<br />
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