Laserfiche WebLink
<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@ <br />