<br />
<br />russ
<br />
<br />russ ype
<br />
<br />
<br />. ST87315
<br />
<br />Bl
<br />
<br />PIGGYBACK TRUSS
<br />
<br />
<br />'1'0.~ 2-8.2 I 5.0-0 15-0-0
<br />1.0-0 2-8.2 2.3-14 10-0-0
<br /> 5,00[12
<br /> 2x4
<br /> 3x7 Y 3
<br /> 8x8 ~
<br />
<br />25-0-0
<br />10-0-0
<br />
<br />,27.3.14 I 30-0-0 3/-0'9
<br />2.3-14 2-8-2 1-0-0
<br />
<br />4x4 =
<br />
<br />5
<br />
<br />SEe MiTek STANDARD PIGGYBACK TRUSS CONNECTION
<br />DETAIL FOR CONNECTION TO BASE TRUSS
<br />2x4 II
<br />6
<br />
<br />18,75 [12
<br />
<br />
<br />18
<br />2x4 II
<br />
<br />
<br />7
<br />
<br />16
<br />2x4 II
<br />
<br />17
<br />2x4 II
<br />
<br />a
<br />N
<br />6
<br />
<br />a
<br />>N
<br />6
<br />
<br />15
<br />
<br />4x8 //
<br />
<br />14
<br />6x6 =
<br />
<br />13 12
<br />6x8 =
<br />
<br />5.3-8
<br />5-3.8
<br />
<br />15-0-0
<br />9-8.8
<br />
<br />24-8-8
<br />9-8-8
<br />
<br />11
<br />
<br />6x6 =
<br />30-0-0
<br />5.3-8
<br />
<br />10
<br />4x8 \\
<br />
<br />
<br />LOADING (pst) SPACING 2-0-0 CSI DEFL in (Ioc)
<br />TCLL 20,0 Plates Increase 1.25 TC 0.71 Vert(LL) OAO 12-14
<br />TCDL 7.0 Lumber Increase 1.25 BC 0,76 Vert(TL) 0.39 12-14
<br />BCLL 0.0 Rep Stress Incr YES WB 0.50 Horz(TL) 0.02 9
<br />BCDL 10,0 Code FBCfANSI95 (Matrix) 1st LC LL Min Ifdefl = 240
<br />
<br />Ifdefl
<br />>444
<br />>459
<br />nfa
<br />
<br />PLATES
<br />MU20
<br />
<br />GRIP
<br />1971144
<br />
<br />Weight: 227 Ib
<br />
<br />LUMBER
<br />TOP CHORD 2 X 6 SPF No,2 'Excepl'
<br />3.52 X 4 SPF No.2, 5-7 2 X 4 SPF No.2
<br />OT CHORD 2 X 8 SPF No,2
<br />NEBS 2 X 4 SPF No.2 'Except'
<br />3-72 X 6 SPF NO.2
<br />OTHERS 2 X 4 SPF No,2
<br />
<br />BRACING
<br />TOP CHORD
<br />BOT CHORD
<br />WEBS
<br />
<br />Sheathed or 54-14 oc purtins.
<br />Rigid ceiling directly applied or 8-94 oc bracing,
<br />3 Rows at 1f4 pts 3-7
<br />
<br />[P]
<br />
<br />REACTIONS (Ib/size) 1=1579fO-3-8, 9=1579/0-3.8,12=1334/0-3-8
<br />Max Horz 1=394(load case 3)
<br />Max Uplift 1=478(load case 4), 9=480(load case 5)
<br />
<br />FORCES (Ib) - First Load Case Only
<br />TOP CHORD 1-2=-1818,2-3=-1689,7-8=-1689,8-9=.1818, 3-4=-997, 4-5=-966, 5-6=-966, 6-7=-997
<br />BOT CHORD 1-15=0,1-14=895,13-14=916,12-13=916, 11-12=916, 9-11=895, 9-10=0
<br />WEBS 2-14=49,8-11=49,3-18=-58, 16-18=-59, 16-17=-59, 7-17=-58,3-14=644,7-11=644,5-16=479,
<br />6.17=-233,4-18=-233
<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 />psftop chord dead load and 7.0 psf bottom chord dead load, in the gable end roof zone on an occupancy category I,
<br />condition I 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 10 wind. The lumber DOL increase is 1,33, and the
<br />plate grip increase is 1.33
<br />3) Ceiling dead load (5.0 pst) on member(s), 3-18, 16-18, 16-17, 7-17
<br />4) Boltom chord live load (40.0 psI) and additional boltom chord dead load (10,0 psI) applied only to room, 12.14,
<br />11-12
<br />5) Provide mechanical connection (by others) of truss to bearing plate capable or wilhstanding 478 Ib uplift al joint 1
<br />and 480 Ib uplift at joint 9,
<br />6) This truss has been designed with ANSlrrP11-1995 criteria.
<br />
<br />LOAD eASElS) Standard
<br />
<br />~~
<br />
<br />MAR 1 2 2002
<br />
<br />A WARNING. V.riIit ct..!"" pa........t.... and READ NOTES ON THlS,,ANJNU;l'ERSE SID!: BBFORI!: USE.
<br />Oesi<;ln valid lor use only wUh MITek connectors, This design Is based only upon paralTl4lers shown. and Is lor on IndiVidual building component to be
<br />Installed and loaded Vertically, AppllcabHUy 01 design parameters and Ploper incorporation 01 component Is responslbllUy 01 building desi<;lner . not truss
<br />desi<;lnel. Bracing shown Is lor laleral supporl 01 individual web members only, AddUlonaltemporary bracing to Insure sfabllUy during construction Is the
<br />responsibility 01 the e,ector. AddUlonal permanent b,aclng 01 the overall structu,e Is Ihe ,esponslbllUy 01 the building desi<;lner. For general guidance
<br />regarding fabrication, quality control, storage, delivery, erection and bracing. consuU Q5T.8I QualUy Sfandard, D5B.89 Bracing 5pecUlcallon, and HIB.91
<br />Handling Inslalllng and Bracing Recammendatlon available Irom Truss PIote Inslllute, 583 O'Onohlo Drive, Madison, WI53719,
<br />
<br />all"
<br />MiTek@
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