Structural CalcsCOMPANY
Whetstone Engineering
Feb. 21, 2013 16:07
PROJECT
100 Emersron Way
Steve Ferrari
Beam2-2.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 (6.67)* No
d2 Dead Full Area 15.00 (6.67)* No
d3 Dead Full Area 12.00(15.50)* No
d4 Dead Full Area 12.00 (1.50)* No
l1 Live Full Area 40.00 (6.67)* No
l2 Live Full Area 40.00 (6.67)* No
s1 Snow Full Area 28.00(15.50)* No
s2 Snow Full Area 28.00 (1.50)* No
*Tributary Width (ft)
MAXIMUM REACTIONS (lbs) and BEARING LENGTHS (in) :
15'0'
Dead 3030 3030
Live 5677 5677
Total 8707 8707
Bearing:
LC number 3 3
Length 3.32 3.32
LVL n-ply, 2.0E, 2800Fb, 1-3/4x16", 2-Plys
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 = 192 Fv' = 328 fv/Fv' = 0.59
Bending(+) fb = 2624 Fb' = 3220 fb/Fb' = 0.81
Live Defl'n 0.36 = L/498 0.38 = L/480 0.96
Total Defl'n 0.65 = L/277 0.75 = L/240 0.87
ADDITIONAL DATA:
FACTORS: F CD CM Ct CL CV Cfu Cr Cfrt Ci Cn LC#
Fb'+ 2800 1.15 - 1.00 1.000 1.00 - 1.00 1.00 - - 3
Fv' 285 1.15 - 1.00 - - - - 1.00 - 1.00 3
Fcp' 750 - - 1.00 - - - - 1.00 - - -
E' 2.0 million - 1.00 - - - - 1.00 - - 3
Bending(+): LC# 3 = D+.75(L+S), M = 32653 lbs-ft
Shear : LC# 3 = D+.75(L+S), V = 8707, V design = 7159 lbs
Deflection: LC# 3 = D+.75(L+S) EI= 1195e06 lb-in2/ply
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.