Tech Note - LVL-18-CA - Versa-Lam® vs Steel Beam Conversions
Conversion Table 1
|
Steel Beam |
Beam Length |
Tributary width |
Glulam 20f-E Spruce-Pine |
Versa-Lam® 2.1E 3100 |
|||
|
Width |
Depth |
Width |
# of plies |
Depth |
|||
|
(ft) |
(ft) |
(in) |
(in) |
(in) |
(in) |
||
|
W4X13 |
8 |
5 |
3 1/8 |
6.0 |
1 3/4 |
2 |
5.50 |
|
W4X13 |
11 |
3 |
3 1/8 |
7.5 |
1 3/4 |
2 |
7.25 |
|
W4X13 |
13 |
4 |
3 1/8 |
9.0 |
1 3/4 |
2 |
9.25 |
|
W6X8.5 |
15 |
4 |
3 1/8 |
10.5 |
1 3/4 |
2 |
9.25 |
|
W5X16 |
17 |
4 |
3 1/8 |
12.0 |
1 3/4 |
2 |
11.25 |
|
W6X15 |
20 |
3 |
3 1/8 |
13.5 |
1 3/4 |
2 |
11.25 |
|
W6X20 |
22 |
3 |
3 1/8 |
15.0 |
1 3/4 |
2 |
14.00 |
|
W8X18 |
24 |
4 |
3 1/8 |
16.5 |
1 3/4 |
2 |
16.00 |
|
W10X16 |
26 |
4 |
3 1/8 |
18.0 |
1 3/4 |
2 |
16.00 |
|
W12X14 |
29 |
3 |
3 1/8 |
19.5 |
1 3/4 |
2 |
16.00 |
|
W10X22 |
31 |
3 |
3 1/8 |
21.0 |
1 3/4 |
2 |
18.00 |
|
W10X26 |
33 |
3 |
3 1/8 |
22.5 |
1 3/4 |
2 |
18.00 |
|
W4X13 |
8 |
8 |
5 1/8 |
6.0 |
1 3/4 |
3 |
5.50 |
|
W4X13 |
11 |
6 |
5 1/8 |
7.5 |
1 3/4 |
3 |
7.25 |
|
W6X8.5 |
13 |
6 |
5 1/8 |
9.0 |
1 3/4 |
3 |
9.25 |
|
W6X12 |
15 |
6 |
5 1/8 |
10.5 |
1 3/4 |
3 |
9.25 |
|
W8X13 |
17 |
7 |
5 1/8 |
12.0 |
1 3/4 |
3 |
11.25 |
|
W6X25 |
20 |
6 |
5 1/8 |
13.5 |
1 3/4 |
3 |
14.00 |
|
W8X21 |
22 |
6 |
5 1/8 |
15.0 |
1 3/4 |
3 |
14.00 |
|
W12X16 |
24 |
6 |
5 1/8 |
16.5 |
1 3/4 |
3 |
16.00 |
|
W10X22 |
26 |
6 |
5 1/8 |
18.0 |
1 3/4 |
3 |
16.00 |
|
W12X21 |
29 |
6 |
5 1/8 |
19.5 |
1 3/4 |
3 |
18.00 |
|
W14X22 |
31 |
6 |
5 1/8 |
21.0 |
1 3/4 |
3 |
20.00 |
|
W14X26 |
33 |
6 |
5 1/8 |
22.5 |
1 3/4 |
3 |
20.00 |
|
W16X26 |
35 |
6 |
5 1/8 |
24.0 |
1 3/4 |
3 |
22.00 |
|
W6X8.5 |
11 |
8 |
6 3/4 |
7.5 |
1 3/4 |
4 |
7.25 |
|
W5X16 |
13 |
9 |
6 3/4 |
9.0 |
1 3/4 |
4 |
9.25 |
|
W8X13 |
15 |
9 |
6 3/4 |
10.5 |
1 3/4 |
4 |
9.50 |
|
W8X15 |
17 |
9 |
6 3/4 |
12.0 |
1 3/4 |
4 |
11.25 |
|
W8X21 |
20 |
8 |
6 3/4 |
13.5 |
1 3/4 |
4 |
14.00 |
|
W12X16 |
22 |
8 |
6 3/4 |
15.0 |
1 3/4 |
4 |
14.00 |
|
W10X26 |
24 |
8 |
6 3/4 |
16.5 |
1 3/4 |
4 |
16.00 |
|
W12X26 |
26 |
9 |
6 3/4 |
18.0 |
1 3/4 |
4 |
18.00 |
|
W14X26 |
29 |
8 |
6 3/4 |
19.5 |
1 3/4 |
4 |
18.00 |
|
W16X26 |
31 |
8 |
6 3/4 |
21.0 |
1 3/4 |
4 |
20.00 |
|
W14X34 |
33 |
8 |
6 3/4 |
22.5 |
1 3/4 |
4 |
20.00 |
|
W16X31 |
35 |
8 |
6 3/4 |
24.0 |
1 3/4 |
4 |
22.00 |
Notes:
- Dry service conditions
- Simple spans uniformly loaded beams
- Live load = 40 psf
- Dead load = 30 psf
- Standard loading conditions (KD = 1.0)
- Continuous lateral support (KL = 1.0)
- Live load deflection limit = L/360
- Total load deflection limit = L/240
- Steel beams should meet the requirements for Grade 350W(metric)/50W(imperial) steel contained in CAN/CSA-G40.21 (yield strength = 350MPa/50ksi)
- Glued laminated timber beam sizes are based on a span to depth ratio, L/d, of 18. When the span to depth ratio is different, sizes should be determined by engineering calculations
- Glulam specified strengths and modulus of elasticity as per CSA 086-19 (Table 7.2)
- Versa-Lam®1E 3100 design properties as per CCMC 12472-R
Conversion Table 2
|
Steel Beam |
Beam Length |
Tributary width |
Glulam24f-E Douglas Fir-Larch |
Versa-Lam® 2.1E 3100 |
|||
|
Width |
Depth |
Width |
# of plies |
Depth |
|||
|
(ft) |
(ft) |
(in) |
(in) |
(in) |
(in) |
||
|
W4X13 |
8 |
6 |
3 1/8 |
6.0 |
1 3/4 |
2 |
5.50 |
|
W4X13 |
11 |
4 |
3 1/8 |
7.5 |
1 3/4 |
2 |
7.25 |
|
W6X8.5 |
13 |
5 |
3 1/8 |
9.0 |
1 3/4 |
2 |
9.25 |
|
W5X16 |
15 |
5 |
3 1/8 |
10.5 |
1 3/4 |
2 |
11.25 |
|
W6X15 |
17 |
5 |
3 1/8 |
12.0 |
1 3/4 |
2 |
11.25 |
|
W8X13 |
20 |
4 |
3 1/8 |
13.5 |
1 3/4 |
2 |
14.00 |
|
W6X25 |
22 |
4 |
3 1/8 |
15.0 |
1 3/4 |
2 |
14.00 |
|
W8X21 |
24 |
5 |
3 1/8 |
16.5 |
1 3/4 |
2 |
16.00 |
|
W12X16 |
26 |
5 |
3 1/8 |
18.0 |
1 3/4 |
2 |
18.00 |
|
W10X22 |
29 |
4 |
3 1/8 |
19.5 |
1 3/4 |
2 |
18.00 |
|
W10X26 |
31 |
4 |
3 1/8 |
21.0 |
1 3/4 |
2 |
20.00 |
|
W12X21 |
33 |
4 |
3 1/8 |
22.5 |
1 3/4 |
2 |
20.00 |
|
W4X13 |
8 |
10 |
5 1/8 |
6.0 |
1 3/4 |
3 |
7.25 |
|
W4X13 |
11 |
7 |
5 1/8 |
7.5 |
1 3/4 |
3 |
7.25 |
|
W5X16 |
13 |
8 |
5 1/8 |
9.0 |
1 3/4 |
3 |
9.25 |
|
W8X10 |
15 |
8 |
5 1/8 |
10.5 |
1 3/4 |
3 |
11.25 |
|
W8X14 |
17 |
8 |
5 1/8 |
12.0 |
1 3/4 |
3 |
11.88 |
|
W8X18 |
20 |
7 |
5 1/8 |
13.5 |
1 3/4 |
3 |
14.00 |
|
W10X16 |
22 |
7 |
5 1/8 |
15.0 |
1 3/4 |
3 |
14.00 |
|
W10X26 |
24 |
8 |
5 1/8 |
16.5 |
1 3/4 |
3 |
16.00 |
|
W12X21 |
26 |
8 |
5 1/8 |
18.0 |
1 3/4 |
3 |
18.00 |
|
W14X22 |
29 |
7 |
5 1/8 |
19.5 |
1 3/4 |
3 |
20.00 |
|
W14X26 |
31 |
7 |
5 1/8 |
21.0 |
1 3/4 |
3 |
20.00 |
|
W16X26 |
33 |
7 |
5 1/8 |
22.5 |
1 3/4 |
3 |
22.00 |
|
W16X31 |
35 |
8 |
5 1/8 |
24.0 |
1 3/4 |
3 |
24.00 |
|
W6X8.5 |
11 |
10 |
6 3/4 |
7.5 |
1 3/4 |
4 |
7.25 |
|
W5X19 |
13 |
11 |
6 3/4 |
9.0 |
1 3/4 |
4 |
9.25 |
|
W6X20 |
15 |
11 |
6 3/4 |
10.5 |
1 3/4 |
4 |
11.25 |
|
W8X18 |
17 |
11 |
6 3/4 |
12.0 |
1 3/4 |
4 |
11.88 |
|
W12X14 |
20 |
10 |
6 3/4 |
13.5 |
1 3/4 |
4 |
14.00 |
|
W10X22 |
22 |
10 |
6 3/4 |
15.0 |
1 3/4 |
4 |
16.00 |
|
W12X21 |
24 |
10 |
6 3/4 |
16.5 |
1 3/4 |
4 |
16.00 |
|
W12X26 |
26 |
10 |
6 3/4 |
18.0 |
1 3/4 |
4 |
18.00 |
|
W16X26 |
29 |
10 |
6 3/4 |
19.5 |
1 3/4 |
4 |
20.00 |
|
W14X34 |
31 |
10 |
6 3/4 |
21.0 |
1 3/4 |
4 |
20.00 |
|
W18X35 |
33 |
10 |
6 3/4 |
22.5 |
1 3/4 |
4 |
22.00 |
|
W18X35 |
35 |
10 |
6 3/4 |
24.0 |
1 3/4 |
4 |
24.00 |
Notes:
- Dry service conditions
- Simple spans uniformly loaded beams
- Live load = 40 psf
- Dead load = 30 psf
- Standard loading conditions (KD = 1.0)
- Continuous lateral support (KL = 1.0)
- Live load deflection limit = L/360
- Total load deflection limit = L/240
- Steel beams should meet the requirements for Grade 350W(metric)/50W(imperial) steel contained in CAN/CSA-G40.21 (yield strength = 350MPa/50ksi)
- Glued laminated timber beam sizes are based on a span to depth ratio, L/d, of 18. When the span to depth ratio is different, sizes should be determined by engineering calculations
- Glulam specified strengths and modulus of elasticity as per CSA 086-19 (Table 7.2)
- Versa-Lam® 2.1E 3100 design properties as per CCMC 12472-R
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