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Pape 2 0124 <br />When joists are used as simple•sDan memErrs, ihe desipn shear is <br />equal lo the cnd reactian. <br />When joists are used as mullipie sDan memDers, the desipn shear fs the <br />calculaled shear al the interior suppon reduced by Ihe followinp: <br />R. (K� � Kz ( W-100)� 518% <br />WAere: <br />R is Ihe percent reductian <br />Win PLF is unitorm loatl <br />K� . 10,000/V�y <br />K2 � K�/100 <br />Vi2 is the allowable shear for a 12 inch (or 11 �/B) joist. <br />By series ihe constanis are: <br />Series not listed are Included with those havinp equal V�� wlues. <br />For all other �oist depihs, the desipn shear iS the wlculatetl shear at the <br />lace oi Ihe interior support. <br />The desipn shear o1 multiple span member �oisls up to 121nches deeD <br />used in rosldeNial Iloor constmclion is permltte0 to be increased anaddi• <br />tional 10 percent. <br />For �ofsts qualityinq as repetitive members, the bendinp resistance is <br />permined to be Incrcased 1 and 7 percent lor joisls with MICRO•LAM LVL <br />and M5R lumber Ilanpes, respeilivel, <br />The lop Ilanpe ol TJI joists must be laterally supDOAad at least evary 24 <br />Inches excepl th�t 18 inches is repuirod lor joists with 1.50• and <br />1.65•inch-wi�1e 1lanpes. The en05 0l the Joist must be restralned to pre• <br />vent rollover. This is normally provided Dy diaphrapm shealhinp atlached <br />to the top Ilanpe and to an end wall or a shear transler panel caDable ol <br />trFnslerrinp a minimum force of 50 pounds Der foot or the requlred shear <br />lorces due to wind or selsmic conditions. Blockinp or crossbracinp with <br />eQuivalent strenpth Is parmitled. <br />Bridpinp Is nol required in TJI Iloor and raol joist aDPliwtions. <br />2. TJIN6JoIp+ndTJl/Y60�n0e0oorHe�der.HeaAersanAjolstsare <br />to De used In accordance with Tahle No. III anG Table No. IV. respeclively. <br />E. One•hour, Fln•rolqlre Rool-C�illnp ar Floor•Cellinp Hallnp� �ie <br />Aplgn�d to the Followinp Construetlou� (descriptive detalls lor each <br />assemAly are noteA below anC in Fipure No. 7): <br />1. A double wood Iloor cons�stinq ol a sublloor ol 1•Inch nominal <br />tonpue•and•proove sheathinp or �/1-inc.i interior plywoo0 with ezterior <br />plue, and a layer o11 Inch nominal tonque•and•qroove linish flaorinp ar <br />6/e•inch interior-rype Dlywuod linish Iloorinp or a layer ol Type I Gnde M• 1 <br />oarticleEoard not less than S/e inch ihick and a suspended ceilinp o1 <br />d/ •inth•Ihick,2-IootGy2•lootor2-lootby4•IootUSGFIRECODEAURA• <br />TBNE� layin acoustical board supported by an apDroved ezposed lire• <br />nted suspenslon system �tlached to the bottom Ilanpe or to cold•rolled <br />channtls spaced not over 4 fee� on center Instalied over the acoustical <br />Uoard are 1-inch•thick, 4•pauno-Dercubic•loot (minimum) USG THER- <br />MAFIBER' or FIBRE% FB% mineral wool blankels Upht liziures havinp a <br />maximum size of 2 feet 6y 4 teel are Dermine0 to be installed m Ihe ceilinp. <br />provlded the apprepate areas ol lixtures do not excee012 square leet pei <br />1D0 spuare leet ol ceilinp and the liztures are Orotected as follows: A <br />24�-mch by 48•inch piece ol USG THERMAFIBER or FIBREX FBX lipht Ilz• <br />ture D�otectmn is IaiO alonp Ihe lonq dimensions each side ol Ihe lixture <br />ana apamst atljacent susDension members: a 174�•inch by 48•inch piece <br />is laid over each side o11he hqure and a 44p•inch �y 24-inch piece at each <br />end anC tied to top pieces al corners ol the 6zture wdh No.1B SWG steel <br />wne In aadtlion, ceilinp oDenmps lor air diflusers up to a maximum size <br />01 12 mches in dlameter are Dermitled. OroWOed openinps are protected <br />with lue dampers an0 Ihe appreqate areas do not exceed 113 square <br />inches per 100 spuare leet ol cailinp. The distance Irom the bottom ol Ihe <br />Iruss to the soflit of Ihe ceilinp shall Oe at least 10 incAes. <br />When use0 as a rool-ailmp assembty. square•edqe plywood. �omply <br />inp with Ihe applica6le co0e, is permined lo be used lor roal sheathinp. <br />Report No. NER-200 <br />and �o�sts are permined to be svacee up to 4B inches on centec Framinp <br />peryendicular to the �oists, at 24 inches on center, shall be installed to sup- <br />poA t�e ceilinq <br />2. A sinpte layer floor ol �/�•inch ton0ue•and•proove plywood or <br />�3/�z-Inch tonpue-and•proove APA-rateG sheathlnp (Ezposure 1 or ezle• <br />rior plue�, wit� jolsts sDaced up to 24 inches on center and a ceilinp ol two <br />layers ot V�-inch•thick Type X pvpsum board applied lo Ihe Dottom chard. <br />All butt joinl5 0l Ihe �/�•Inch Dlywood or Z�/�p•Inch APA-rated sheathinp <br />(Exposure 1 or e�lerlor plue� must fall on Iraminp members. The lirsl layer <br />ol Doard is atlached with t/e•inch•lonp Type S screws placed 12 Inches <br />on center. The second layer is inslalied with the �aints stappered Irom the <br />lirst layer. It shall be lastened with 2•inch-lonp Type S screws spaced 12 <br />fnches on center In the fietd antl 8 inches on cenler at the bult joints Type <br />G screws, 1�/2 Inc�es lonp, shall be spaced ti �nches on center and 6 <br />inches each sitle ol lhe hutl �oint. The seconA layer shall be linished wi�h <br />joint tape and compound. <br />Reslliem channels are permitted lo he used as part oi the ceilinp atlach- <br />menl system, provided they are spaced i6 inches on center (24 inches. <br />II �aists are 16 inches on center) and fastanetl perpendicular lo �oists with <br />1•Inch-lonp case•hardened steel, 0.15•Inch-diameter shank, sell•drlllinp <br />and sell•tap0inq Phillips-head screws. The ceilinp Is attached to the resif- <br />Ien1 channels as descriDed above, except use 1-inchType S scrcws and <br />tsie•inch TyDe S screws at 12 inches on center lor the Ilrst and second <br />layer, respecuvely. <br />When used as a rool-ceilinp assembly, the deckinp Is permitted lo be <br />any wood deck as provided in ihe appliwble code and ihe �oist spacinp <br />Is permitled to exceed 24 Inches on center. When �oists ara spaced more <br />than 24 inches on center, the ceitinp, includinp t�e resilient cbannels, is <br />applied to slrippinp sDaced 24 inches on center. The atlachment to Ihe <br />strippinp is similar to the atlachment to ihe laists descriCed above. The <br />strippinq shall he 2•inch Oy 4•inch Construction•praCe Uouplas lir lumber <br />lor sD��s up ta 5 feeL atlacheA to the bottom chord with tOd nails, or <br />equivalent strenplh material and atlachment. <br />3. A sinple layer floor ol �l�•inch tonpue•and•proove plyn�o0 or <br />��/72-in�h tonpue•and•proove APA•rated sheathinp (Exposure t or exte- <br />rior plue�, with �oists spaced u� to 24 inches on cenler and a ceilinp con• <br />sistinp ol a sinqle layer ol /z-Inch-ihick Type X pypsum wallOoard <br />attached to joists spaced 24 inc�es on center, or to stnppinp space0 24 <br />Inches on center lastened with 15/e•inch-lonp Type S drywall screws <br />located 6 inches on center at end �oints and 8lnches on center In the IIeIG. <br />All buri joints ol the �/�•inch plywood or 27/�q•Inch APA•rated sheathinq <br />(Ezpasure 1 or e�erior plue) must lall on framinp members In additian. <br />an approved ezposed fire•rated susDended ceilinp system shalt be <br />installetl benealh Ihe pypsum hoard ceilinp a minimum distance 12 <br />inches The Orid system is suspen0ed with No. 12 SWG palvanire0 steel <br />wue lastened to the furrinp or joists with 3•inch•lonp Ilalhead nanper <br />screws Lipht tixture protection consists ol 6-inch•wi0e Dieces of ceilinq <br />qrid panels 41eet lonp tor the sides and 2 leel lonp lor the enOs and a lull <br />prid panel placed on toD � A palvanized sleel ducl wilh a maximum 12•inch� <br />tliameter steel dilluser openinp without damptr antl a mazimum 6�inch <br />x 12•inc� returmair opening are permitled for each 2D0 spuare leet ol ceil� <br />Inp Ceilinp panels are permitled to De either `/s•Inch USG FIRECO�E <br />AURATONE or S/e•inch Gold Bond Fire•Shield Sulltude Panels. manufar <br />tured by Gold Bnnd Buildmp Products Diwsion ol NaUonal Gypsum Cam• <br />pany Noncomhustible insulatwn rated R•30 or less is permitled lo Oe <br />Installed aGove the pypsum board <br />When used as a rool-ceilinp assembly, spuare-edpe Dlywood meefinq <br />the slructural requiremenis ol I�e applicable code is Dermitled lo be used <br />lor rool sheathinp and joists are Dermitled to be sDaced u0 �0 48 inches <br />on centec Framinp perpentlicular to Ihe joists, at 24 inches on center. shall <br />be inslalled to support the cei6np <br />4. A sinple layer Iloor ol3/�-inch or ��l3z-inch lonpue-and•proave ply <br />wood with jorsts spaced a maKlmum o124 mches on centec All b�i8 �o�nts <br />ol Ihe 3/��inch plywood must lall on Iraminq mem0ers. The ceihnq com <br />sists of'/p•inch USG Type C FIRECODE' pyDsum Doard screw attached <br />tn 5lan0ai0 steel lurrinq cAannels at 24 inches on cenler an0 susDended <br />Irom the joists by a specially aesiqned No. 24 Oaupe Simpson Stronp•Tie <br />(CSC) ceilinp supDort clip One incn ol (6 pcl minimum) USG THERMA• <br />FIBER ar FIBFE% FBK mmeral wool hreproofinq is placed between ihe �ot• <br />tom flanpe or churd ot ihe joats and the tap ol the lurrinp cnannel. <br />C: <br />n <br />� <br />