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Design Information |
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Steelway has prepared several documents for downloading to assist building designers take full advantage of light gauge steel trusses. Please select the link for the information you desire.
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Architectural
Guide Specification
SECTION 05410, 05425
PRE-ENGINEERED
LIGHT GAUGE STEEL TRUSSES |
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System Truss Specifications & Section Properties |
TC 2.5 |
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Member
Specifications
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Gross
Section Properties
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Gauge
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Design
Thickness
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Weight
(lbs/ft)
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Steel
Grade
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Min.
Yield Strength |
Coating
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Area
(in2)
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Ix
(in4)
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rx
(in4)
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Iy
(in4)
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ry
(in)
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22
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0.028
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0.695
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ASTM
A653 SQ Grd 33
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33 KSI
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ASTM
A924 ASTM A653, G-60
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0.213
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0.106
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0.708
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0.017
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0.882
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20
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0.035
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0.850
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ASTM
A653 SQ Grd 33
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33 KSI
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ASTM
A924 ASTM A653, G-60
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0.275
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0.130
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0.708
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0.202
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0.882
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18
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0.045
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1.106
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ASTM
A653 SQ Grd 33
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33 KSI
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ASTM
A924 ASTM A653, G-60
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0.339
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0.170
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0.708
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0.264
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0.882
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16
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0.057
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1.390
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ASTM
A653 SQ Grd 50
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50 KSI
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ASTM
A924 ASTM A653, G-60
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0.426
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0.213
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0.708
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0.331
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0.882
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TC 3.5 |
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Member
Specifications |
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Gross
Section Properties |
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Gauge |
Design
Thickness |
Weight
(lbs/ft) |
Steel
Grade |
Min.
Yield Strength |
Coating |
Area
(in2) |
Ix
(in4) |
rx
(in4) |
Iy
(in4) |
ry
(in) |
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20 |
0.035 |
1.074 |
ASTM
A653 SQ Grd 33 |
33 KSI |
ASTM
A924 ASTM A653, G-60 |
0.357 |
0.145 |
0.655 |
0.459 |
1.167 |
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18 |
0.045 |
1.397 |
ASTM
A653 SQ Grd 33 |
33 KSI |
ASTM
A924 ASTM A653, G-60 |
0.440 |
0.188 |
0.655 |
0.599 |
1.167 |
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16 |
0.057 |
1.756 |
ASTM
A653 SQ Grd 50 |
50 KSI |
ASTM
A924 ASTM A653, G-60 |
0.552 |
0.237 |
0.655 |
0.751 |
1.167 |
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TW 1.5 |
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Member
Specifications |
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Gross
Section Properties |
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Gauge |
Design
Thickness |
Weight
(lbs/ft) |
Steel
Grade |
Min.
Yield Strength |
Coating |
Area
(in2) |
Ix
(in4) |
rx
(in4) |
Iy
(in4) |
ry
(in) |
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20 |
0.035 |
0.683 |
ASTM
A500 Grade A |
45 KSI |
Allied
Zinc Flo-Coat ASTM B-117 840 hours (Ind. Test) |
0.202 |
0.017 |
0.596 |
0.072 |
0.596 |
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18 |
0.045 |
0.881 |
ASTM
A500 Grade A |
45 KSI |
Allied
Zinc Flo-Coat ASTM B-117 840 hours (Ind. Test) |
0.258 |
0.090 |
0.592 |
0.090 |
0.592 |
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16 |
0.064 |
1.244 |
ASTM
A500 Grade A |
45 KSI |
Allied
Zinc Flo-Coat ASTM B-117 840 hours (Ind. Test) |
0.361 |
0.123 |
0.584 |
0.123 |
0.584 |
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TWW 1.5 |
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Member
Specifications |
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Gross
Section Properties |
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Gauge |
Design
Thickness |
Weight
(lbs/ft) |
Steel
Grade |
Min.
Yield Strength |
Coating |
Area
(in2) |
Ix
(in4) |
rx
(in4) |
Iy
(in4) |
ry
(in) |
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18 |
0.045 |
1.445 |
ASTM
A500 Grade A |
45 KSI |
Allied
Zinc Flo-Coat ASTM B-117 840 hours (Ind. Test) |
0.438 |
0.688 |
1.254 |
0.186 |
0.651 |
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16 |
0.064 |
2.045 |
ASTM
A500 Grade A |
45 KSI |
Allied
Zinc Flo-Coat ASTM B-117 840 hours (Ind. Test) |
0.617 |
0.955 |
1.245 |
0.255 |
0.643 |
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CW 1.5 |
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Member
Specifications |
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Gross
Section Properties |
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Gauge |
Design
Thickness |
Weight
(lbs/ft) |
Steel
Grade |
Min.
Yield Strength |
Coating |
Area
(in2) |
Ix
(in4) |
rx
(in4) |
Iy
(in4) |
ry
(in) |
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20 |
0.035 |
0.589 |
ASTM
A653 SQ Grd 33 |
33 KSI |
ASTM
A924 ASTM A653, G-60 |
0.174 |
0.070 |
0.632 |
0.055 |
0.560 |
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