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Design Properties <br /> �Fr._,.rv.1,v- atment Guidelines 6020•July 2005 <br /> Wolmanized® Parallam® PSL <br /> Allowable Design Stresses for Headers and Beams <br /> .- (100% Load Duration) <br /> Service Service Service <br /> Level Level Level <br /> Shear modulus of elasticity G = 103,750 psi 91,250 psi 83,750 psi <br /> Modulus of elasticity E = 1.66 x 106 psi 1.46 x 106 psi 1.34 x 106 psi <br /> Flexural stress Fb = 2,117 psiVi 1,827 psi0) 1,624 psiM <br /> Compression perpendicular to grain F,L= 533 psi(2) <br /> 368 psil2l 263 psi(2)Compression parallel to grain Fill = 2,030 psi <br /> Horizontal shear parallel to grain F, = 241 psi 1197 <br /> 97 psi 1psi <br /> Creep factor CRP= 1.2 1psi 171 psi <br /> 1..66 1..885 <br /> a� 12 o.111 <br /> s� (1)For 12" depth.For others, multiply by L d� <br /> (2) FU shall not be increased fof duration of load. <br /> :., <br /> The following formula approximates the totaf.load. <br /> deflection including creep deflection (ACD), in inches- <br /> for <br /> = <br /> for Wolmanized®Parallam® PSL: <br /> A Total load deflection (ATL) =ALL+ADL+ACD. <br /> where:.AcD = IADL+ALL(F-1.0)] ICRP 1.0] <br /> F= 1.2 for floors; 1.3 for roofs <br /> A. { n ��c ?+y 3Y i�Xk F' ei ''� "R,{ i�a, rtc{. �a• �M^::n'�,1! u a f4 1 i.. <br /> �Trris,Joest.SI,ce�.Level .Definiti.on�s���, < <br /> ery <br /> 5enrice:Level; Service Level 2 .Service Level 3 <br /> Treated,materral <br /> sein-dryTreated.`material UlS,E sn Treated:natenal used.m ground: <br /> service Moisture ccsntent'16% =above-groundseruice;`Moisture, contact.orsaturated use, fVloisture <br /> maximum. contenfgreater than 1 b% but content greater'than 28%. <br /> not exceed"t 2 X. <br /> (1)Dry service defined per ,.ap licable codeIn CanadaCSA SA 086-01 defines dry service as average EMC_<15%,19%maximum. <br /> Allowable Design Properties General Assumptions for <br /> (100% Load Duration/Service Level 2) Wolmanized° Parallam® PSL <br /> • Treated for ground contact as well as aboveground uses <br /> 31/2" Wolmanized® Parallam° PSL (0.31 lbs/ft3 retention CA-B). <br /> `Design Property De th • Lateral support required at bearing and at 24" on-center <br /> (Service.Level 2) 9�Za 1`:TT/a �4 �'6 maximum. <br /> Mornent(ft=lbs). 7,820 12,540 17,110 22,020 Nominal connection design values for Service Levels 1 <br /> :Shear:'(Ibs) 4,255 5,465 6,440 7,360 g <br /> :Mbmentof Iryertia (in.4)' i" 231 488 800 1,195 and 2 shall be multiplied by 0.7 for lateral and 0.25 for <br /> yye� ht(...Ifl 11.7 15.1 17.8 20.3 withdrawal. Contact Trus Joist for Service Level 3 con- <br /> nections. Corrosion-resistant fasteners are required for <br /> 51/4" Wolmanized® Parallam° PSL wet-service applications. <br /> De Ah Fasteners to be specified by the designer of record. <br /> Design Property <br /> (Servicelevel.2) 9�/4" 11�A 14" 16" Surface checking is an inherent characteristic of <br /> Moment-:(ft-lbs) 11,735 18,810 2.5,670 33,030 Wolmanized®Parallam®PSL and is common to all wood <br /> Shear-:016s) 6,385 8,195 9,665 11,045 products;these design values take surface checking into <br /> _ Moment:of Inertia'(in 4) 346 7 1;201 11792 consideration. <br /> Weight( If) 17.6 22.6 26.6 30.5 <br />