HomeMy WebLinkAboutLHB Letter 20191125 3orREcosaaai s i P3szs i coMMON
nulacluring, tau Claire, W I- 54701 , 8.220 s Sep 24 2018 Mi l ek Incluslries, Ina Wecl Uct 3 15.3234 2018 Nage 1
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5-8-0 12-2-0 23-10-0 30-4-0 36-0-0
� 5-8-0 6-6-0 11-8-0 6-6-0 5-8-0
Scale = 1 �.63.2
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7x10 MT18H=
7x6 = gx12 M185H5- 7x6 =
7x10 MT18H=
' 9-7-14 ' 16-8-4 ' 9-7-14 '
Piaie o�5eis (x,vl— fa o-s-o,o�-81, fi o o-s-o,o-a-e�
Plate Grip �OL 1.15 BRACING-
Lumber �OL 1.15 TOP CHORD 2-0-0 oc purlins (2-1-10 max }.
Rep Stress Incr NO BOT CHOR� 5-6-12 oc bracing
Code IBC2015(TP12014 �EBS 1 Rowatmidpt 3-9, 5-9
LUMBER-
TOP CHOR� 2x6 SPF 2100F 1.SE
BOT CHOR� 2x6 SPF 2100F 1.SE
WEBS 2x4SPFSiud'Excepi"
3-9,4-9,5-9�. 2x4 SPF Na2
REACTIONS. (Iblslze} 1=4101I0-5-S (req. 0-5-14}, 7=410110-5-5 (req. 0-5-14)
Max Horz 1= 269(LC 13)
Max Uplifi 1=-1349(LC 8`, 7=-1349(LC 9)
Max Grav 1=4638(LC 2}, 7=4638(LC 2)
Deflection meets L/240 live and L1180 total load
Live Load Deflection =-0.62 in. at 9-10
Total Load Deflection =-0.83 in. at 9-10
Horizontal Total Load Deflection = 028 in. at joint 7
Bottom chord bracing may be spaced on 120" centers when
this truss design is used in post frame construction, this spacing
assumes a reduced wind speed of VuIt=80 mph (3-second gust).
This truss has been analyzed forthe following loading condi[ions:
Ground STiow TC LL TG �L BC DL Total Load QC. Spacing
(PSF} (PSF) (PSF) (PSF) [PSF) (ft.}
25 2o a i 25 io
25 20 4 5 29 9
35 20 4 5 29 8
50 28 4 5 37 6
NOTES-
1j Unbalanced rooi live loads have been considered torlhis design.
2j Wind ASCE 7-10; Vu11=105mph (3-second gust} Vasd=83mph; TC�L=24psf, BC�L=vanes; h=25fl, Cat I, ExpC, enclosed;
MWFRS (envelope); cantilever lefl and right exposed �, end verlical lefl and righi exposed; Lumber �OL=1 .60 plate gnp �OL=1.60
3) TCLL ASCE 7-10, (roof live load Lumber �OL=1 15 Plate �OL=1 15}; (rooi
snow�. Lumber �OL=1.15 Plaie �OL=1.15}; Category I; Exp C�, Fully Exp.; Ci=t2; Unobsirucied slippery surtace
4) Rooi design snow load has been reduced 10 accounl for slope.
5) Unbalanced snow loads have been considered for lhis design.
6) �ead loads shown include weight of iruss. Top chord dead load of 5.0 psi (or less} is not adequate for a shingle rooi. Architeci io
venty adequacy o11op chord deadload.
7j As requested, plates have not been designed 10 provide tor placement tolerances or rough handling and erection condilions. 11 is
ihe responsibiliiy of ihe iabncaiorio increase plate sizes to accouni ior ihese iaciors.
S) All plates are MT20 plaies unless oiherwise indicaied.
9) This truss has been designed ior a 10.0 psf boitom chord live load nonconcurreni with any other live loads.
10) WARNING� Required beanng size at joini(s} 1, 7 greater ihan input bearing size.
11 j Provide mechanical connection (by olhers) oi iruss 10 bearing plate capable of wilhslanding 1349 Ib upliit at joint 1 and 1349 Ib upliit
atjoint 7
12) Graphical purlin representation does not depict ihe size or ihe orientation ot ihe purlin along ihe top andlor botiom chord.
PLATES GRIP
MT20 197/144
MT18H 1971144
M18SHS 1971144
Weighi� 1761b FT=O%