AtkoreMasterElectricalProductsCatalog

1¼" Framing System

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A3301 – 1¼" x 1½"

Unistrut

Wt/100 Ft: 156 Lbs (232 kg/100m) ꞏ Allowable Moment 2,590 In-Lbs (290 N•m) ꞏ 14 Gauge Nominal Thickness .075" (1.9mm)

1 1 ⁄

4 "

3 ⁄

4 "

1

1 1 ⁄

2 "

3 ⁄

4 "

2

A3301 - Beam Loading

A1001 - Beam Loading (metric)

Span Max Allowable Uniform Load

Defl. at Uniform Load

Uniform Loading at Deflection

Span Max Allowable Uniform Load

Defl. at Uniform Load

Uniform Loading at Deflection

Span/180 Span/240 Span/360

Span/180 Span/240 Span/360

(in)

(lb)

(in)

(lb)

(lb)

(lb)

(mm)

(kN) 7.3* 7.3*

(mm)

(kN) 7.3* 7.3*

(kN) 7.3* 7.3*

(kN)

18 24 36 48 60 72 84 96

990*

0.03 0.07 0.15 0.27 0.43 0.62 0.85 1.11

990*

990*

990*

600 750

1 2 3 4 6 9

7.3 7.3 5.5 3.5 2.4 1.8 1.4 0.9 0.6 0.4

860 580 430 350 290 250 220

860 850 420 270 190 140 110

860 560 320 200 140 100

850 380 210 140

1,000 1,250 1,500 1,750 2,000 2,500 3,000 3,500

5.5 4.4 3.6 3.2 2.8 2.2 1.8 1.6

5.5 4.4 3.6 3.2 2.7 1.7 1.2 0.9

5.5 4.4 3.6 2.7 2.0 1.3 0.9 0.7

90 70 50

11 17 25 34

80

A3301 - Column Loading

A1001 - Column Loading (metric)

Unbraced Height

Maximum Allowable Load at Slot Face

Maximum Column Load Applied at C.G.

Unbraced Height

Maximum Allowable Load at Slot Face

Maximum Column Load Applied at C.G.

K = 0.65 K = 0.80 K = 1.0 K = 1.2

K = 0.65 K = 0.80 K = 1.0 K = 1.2

(in)

(lb)

(lb)

(lb)

(lb)

(lb)

(mm)

(kN) 15.5 15.2 14.9 14.4 13.3 12.1 10.8

(kN) 56.9 54.4 50.4 47.2 44.6 39.4 34.1 29.0 24.1 19.9

(kN) 54.5 51.6 47.4 43.9 37.4 30.9 24.8 19.6 15.9 13.1

(kN) 51.6 48.4 43.9 35.7 27.8 20.7 15.9 12.5 10.2

(kN) 48.9 45.7 37.4 27.8 19.6 14.4 11.0

18 24 36 48 60 72 84 96

2540 2510 2410 2230 1970 1650 1380 1160

9890 9510 8800 7560 6210 4890 3680 2820

9620 9200 7960 6320 4690 3310 2430 1860

9300 8710 6730 4690 3050 2120

9020 7960 5490 3310 2120

600 750

1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750

** ** **

** **

9.5 8.4 7.4

** ** **

**

A3300/A3301 - Elements of Section

ꞏ Finishes: PL, GR, HG, PG; Standard Lengths: 10' & 20'

Parameter

A1000

Parameter

A1000

Area of Section

0.305 in 2

Area of Section

1.96

cm 2

Axis 1-1

Axis 1-1

Moment of Inertia (I) Section Modulus (S) Radius of Gyration (r) Moment of Inertia (I) Section Modulus (S) Radius of Gyration (r)

0.061 in 4 0.086 in 3

Moment of Inertia (I) Section Modulus (S) Radius of Gyration (r) Moment of Inertia (I) Section Modulus (S) Radius of Gyration (r)

2.53 1.41 1.14 3.25 2.05 1.29

cm 4 cm 3

0.447

in

cm

Axis 2-2

Axis 2-2

0.078 in 4 0.125 in 3

cm 4 cm 3

0.506

in

cm

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