The webpage is not working since JavaScript is not enabled. Most likely, you are viewing using Dropbox website or another limited browser environment.
Update
Reset
Truss type: Warren
Truss type: Pratt
Weight
Aspect ratio = 2:1
Aspect ratio = 3:1
Aspect ratio = 4:1
Aspect ratio = 5:1
Aspect ratio = 6:1
Aspect ratio = 7:1
Aspect ratio = 8:1
Aspect ratio = 9:1
Aspect ratio = 10:1
Aspect ratio = 11:1
Aspect ratio = 12:1
Aspect ratio = 13:1
Aspect ratio = 14:1
Aspect ratio = 15:1
Aspect ratio = 16:1
Aspect ratio = 17:1
Aspect ratio = 18:1
Aspect ratio = 19:1
Aspect ratio = 20:1
Aspect ratio = 21:1
Aspect ratio = 22:1
Aspect ratio = 23:1
Aspect ratio = 24:1
Aspect ratio = 25:1
Aspect ratio = 26:1
Aspect ratio = 27:1
Aspect ratio = 28:1
Aspect ratio = 29:1
Aspect ratio = 30:1
Aspect ratio = 31:1
Aspect ratio = 32:1
Aspect ratio = 33:1
Aspect ratio = 34:1
Aspect ratio = 35:1
Aspect ratio = 36:1
Aspect ratio = 37:1
Aspect ratio = 38:1
Aspect ratio = 39:1
Aspect ratio = 40:1
Span-height ratio
Number of truss panels = 2
Number of truss panels = 4
Number of truss panels = 6
Number of truss panels = 8
Number of truss panels = 10
Number of truss panels = 12
Number of truss panels = 14
Diagonal angle
Steel designation
A-36
Number panels
Truss span (feet)
Bar selection:
Live load (psf)
Dead load (psf)
Snow load (psf)
Construction load (psf)
Apply live load reduction?
Yes
No
Maximum total load deflection
no limit
span/240
span/180
span/120
other
Maximum live load deflection
no limit
span/360
span/240
span/180
other
Effective length coefficient, K
Connections in tension
5/8 in. bolts
3/4 in. bolts
7/8 in. bolts
1 in. bolts
1.125 in. bolts
1.25 in. bolts
1.375 in. bolts
1.5 in. bolts
welded
Assumed shear lag coefficient, U
1
0.95
0.9
0.85
0.8
0.75
0.7
0.65
0.6
Extend bottom truss chord to column?
Yes
No
Use continuous top and bottom chords?
Yes
No
Intermediate connector spacing:
Horizontal bars
Vertical bars
Diagonal bars
Update
Reset