Rim Joist Calc.COMPANY
Whetstone Engineering
Feb. 21, 2013 16:05
PROJECT
100 Emersron Way
Steve Ferrari
Rim Joist.wwb
Design Check Calculation Sheet
Sizer 2004a
LOADS ( lbs, psf, or plf ):
Load Type Distribution Magnitude Location [ft] Pat-
Start End Start End tern
d1 Dead Full Area 15.00 (8.75)* No
d2 Dead Full Area 15.00 (8.75)* No
d3 Dead Full Area 12.00 (8.75)* No
d4 Dead Full Area 8.00 (8.00)* No
l1 Live Full Area 40.00 (8.75)* No
l2 Live Full Area 40.00 (8.75)* No
s1 Snow Full Area 28.00 (8.75)* No
s2 Snow Full Area 28.00 (1.50)* No
*Tributary Width (ft)
MAXIMUM REACTIONS (lbs) and BEARING LENGTHS (in) :
5'-6"0'
Dead 1187 1187
Live 2036 2036
Total 3222 3222
Bearing:
LC number 3 3
Length 2.46 2.46
LVL n-ply, 2.0E, 2800Fb, 1-3/4x11-7/8", 1-ply
Lateral support: top= full, bottom= at supports; Load combinations: ICC-IBC;
Analysis vs. Allowable Stress (psi) and Deflection (in)using NDS 2001 :
Criterion Analysis Value Design Value Analysis/Design
Shear fv = 144 Fv' = 285 fv/Fv' = 0.50
Bending(+) fb = 1248 Fb' = 2800 fb/Fb' = 0.45
Live Defl'n 0.03 = <L/999 0.14 = L/480 0.23
Total Defl'n 0.06 = <L/999 0.28 = L/240 0.21
ADDITIONAL DATA:
FACTORS: F CD CM Ct CL CV Cfu Cr Cfrt Ci Cn LC#
Fb'+ 2800 1.00 - 1.00 1.000 1.00 - 1.00 1.00 - - 2
Fv' 285 1.00 - 1.00 - - - - 1.00 - 1.00 2
Fcp' 750 - - 1.00 - - - - 1.00 - - -
E' 2.0 million - 1.00 - - - - 1.00 - - 3
Bending(+): LC# 2 = D+L, M = 4278 lbs-ft
Shear : LC# 2 = D+L, V = 3112, V design = 1992 lbs
Deflection: LC# 3 = D+.75(L+S) EI= 488e06 lb-in2
Total Deflection = 1.50(Dead Load Deflection) + Live Load Deflection.
(D=dead L=live S=snow W=wind I=impact C=construction CLd=concentrated)
(All LC's are listed in the Analysis output)
DESIGN NOTES:
1. Please verify that the default deflection limits are appropriate for your application.
2. SCL-BEAMS (Structural Composite Lumber): the attached SCL selection is for preliminary design only. For final member design contact your local SCL
manufacturer.
3. Size factors vary from one manufacturer to another for SCL materials. They can be changed in the database editor.
4. BUILT-UP SCL-BEAMS: contact manufacturer for connection details when loads are not applied equally to all plys.