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�- <br /> International Conference of Building Officials <br /> � <br /> IIESEIIR[N [01111111iTEE RE[ORIIIIEfl�11i1011 Report No. 1607 � <br /> Orto6er,1973 <br /> MODEL IB� DIODEL 20 AND TRUS-TI7E DUO•PLATF. Ident�ficnlian: 'lh�� \todel IH, \lndel 20 anJ Tno�!'�tr Uuo- <br /> TRUSR'AL SYSTEAI$ N'EST, IYC. Plalr an i!entilird Lr ,liwrns�nnnl characlens�ia nnd hy e stamp• <br /> 21'd7 W. BALI. ROAD inF o( thr leller "T..'�npcdmpnsrd on d�c IrHcr '•\t..• - ' <br /> ANAFiEIAf, CAI.IFORNIA 02604 IIL licidrnec tiubmitled: :\n rngintw•ring tununnp�, drscnpnve <br /> L Inlmduc�ion: A1 l�ie rrqnest u( Trusw'a� $)'st��nu 11'r.L Im . �ili•rahue dnd leri �I:�ti ❑re submitltt� s�io�cin{; �rnnpGann• .rith <br /> Mehcim. Cali(omin, thc AcsrarcL Cammiltcc ul ihc Int��iuuln,u,d 1�.I7.C. ti�.�nJ,ud 1u. 2:i-17 �0 . <br /> Con(crence o� Uui�e�ing O(ficia�c h;�s mai�c a rr-e�.unin,tliru nl IL�• Recommendaiion <br /> daL� submiticvl in ivnnectimi �cilh lhe \laiirl IM. \IoJrl �:U .ind I\'. Hceommendmion: 7'6a� Ihr ionneclon de�cribed in Part ll <br /> I�n�s-1'ilc Uur.-Plalr. <br /> o( Il�i� �rpurt urr .nli�fm lun :ilicrnntr t)p�s of cmmedoo In �hM1 <br /> 11. Uescription: Genernl: 'fn�s11'aI Cnunectun arv Innn�d Iruin �prviGed iu i6r Cnifunn Building Cude Drurided: <br /> Iwt dipped gnlvunizeel stccl cnnfnnninK tn thr rrquin•mcNe r�tab. 1. TLr nilowible IoxJ per �qunrc inch uf plxle arce for �he <br /> lishnl fm� A44fi C�aJe C in l7.li.C. Stand:vd Vn. L7=��rith a mmo- Vodel IR 1'I:dr duc. nul excred lE(i �wimde (or ffem•fit or <br /> mum Y�al-I strengd�of d0,00U pa�mds per�qu:rte inc6. 1�10 �NnwJ. Inr huuglnc (ir. <br /> \fodel Id Plete: Tho Stodcl 18 l V S�•rics 1 Plate is (unneJ (rum "-. 'fhe nllmcohlr InnJ prr squere inch o( pletr aren for Ihr <br /> Ko. IB B���R� slerl und ctmtni�u (our Ieeth per s�pwre meL nf curv \fadel ^_0 1'Inte Jm. nnt eseeed 1;17 qmnds for Hrm.fir or <br /> (arn arca. 'Chc i°r-mch dcvttp Iccth arr punchcd pluR• .paced :i0 151 �wunda (or Umi�;in, fir. <br /> inch ou n�nlers IonKituJinnlly� :u�d .^_5 inch nn u�uteis Inm�r�•rerly J. The nlln�.�a61r InnJ per squnrc inrh (or Tru�.Titc Uuo- <br /> in stagqe.md rnwe. l�ach luuth ix JO inc6 �cide at Ihr lip aud .I4 Plnly dne� nol e�cecJ 115 :mJ 11= IH������1� !�>r UouRln. fir <br /> ineh wicle al Ihe junclurr �o Ihr pla�e havinK:i 0�1-inrL widr eriw'> mid Ilem-fir re�prclicel�. <br /> Iull Ier.gUi nf Itwlh. '!he platrs arc dcsigned In hv iinl.�lled un rar i .1. Slre�+es in Ih�• nel .ecliuu af tLe Plules shell nol he in ercce� <br /> side of wood mrnilx�rs :md an• emb�•ddrd In� m�•ans of a hydr.�ulic uf rolues prnnilled b>' Chaptrr 37 u( lhc l:��Ie. The mui- <br /> o�'enc�aJ press. mum Icr,�ilr Inad i� dclrnnincd h)' mulliph'�nq thc cll�icicncy <br /> Atodcl 20 Plnte: 'Che 1lndcl ^_0 ('1' Se�ics) I'I.dr i+ lomicd rnlin u( :iJ per cent !nr �Le \bdel I& PI�•c. 52 prr renl for <br /> Irom \o. 2U H;���Rr strcl aud cunlnins ciFhl Irctl� p�•r �q��arr inch Ihc \Ind,•I �_'0 Pl�nr aud dH per ccnt fm� thc T�us.7ilc Uuo� <br /> n(p�n�c surfan�arru. 'Phr lcclh are puuched hru per huL•. .19 iurL 1'Inlc Iimr� Ihe gruw nren nf Ihc pinlc limes thc strel de�ign <br /> .� w�idi• and A1 ind� IunK �cith a ./1?.i-inch cnnip ;dun¢ ILeir back �Irc.�. <br /> �:i}''1'he lecth nrc pu�,ched �o a pr�prudiadar potirtiuu�cith iLr un�w.d i. The plale� �h�Jl bv in�t�Jled iu pnin on aPlM•itc (aces ol �he <br /> ' blenk and rol:rted �IS drqrerti. Enc6 iw:ih has a 611.deprr �.d.r ��n nreinbcr. cum�ei��ed nud +hnll nol Se inNvlled in Inen�inns <br /> 1! catreme end. 'I'noth hnlcs l prr p:�ir ul �rrlh 1 :ur�p,u.�d .'?� inrli wherc I.not� urrur iu thc nnmctled mem6ers. <br /> on ce�ter laterallr and l.11 inch bnKitn�Ln.Jly. uuifmnilv o�rr ILv fi. ll'Lere a ou���hnm firr.re�idicc rnlin�; is rc9wrcd. �ce Re- <br /> cnHri sur(n<r arra of lhc plutr wifh ;�djan•nl Inn�;ilndm.�l rnw� �enrrh Reaommendatiom �os. I000. 1019. I35:nnd 1002. <br /> stngqcrcd .IU inch. <br /> 7. Thc tni�� rnbnentur Lui prriadic norochnluled inspection by <br /> 'INs-Tile llun-Plnte: 'fhr 'Pnu-'Pite Uno �D tii•rie5) I'I,dr nn upprucrd in.pertim� ngcnc)•. <br /> is(onncd trom No. 20 or\o. IF Fan�;c xlc�d �ind�rmlain.��cn lirlh H. Thc iJln.vubl�• IoaJ� m:�y h�• i��crca�cd lor duretinn o( lo�d <br /> AO inch disp fmnt cacL pm:chrd pluF. 7'hc ping. ��n ndj�ceut in acturdautt wilh Scrtion ^_.iO4 Ic) a. <br /> rows arc rolaltYl �JU dcy;�ce. lo each alhc� .md ;ur �paacd 5 mch �. 7'hi� repurt e�tnbli�hr�decign volues onlY end eperifle trusses <br /> on cenler me:uur�d almi� lhe Icn�,nL ot thr plat�• anJ 1 inch mmt br indi.iJuxll.� de�i�ud in nccordxnce ..i1L rerngnized <br /> on center measured in a transv��rse Jirectinu. fhr plate. nir <br /> desi�(ned to be instWlled an ench +iJr nf w�oud members nnd :u�� engiueeriup: pnnciplr�. <br /> eml�lded by mc�ns o( a rcrtical, �vedgv typr ar mller pre�s. This rec�nnmeudaiinn i+ �uhire�t to annunl recxamination. <br /> P�Qa 1 of I <br />