Struts And Hangers

Page 1

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1:.D. f..bs /.3.'' ...'.·

..'.· 042-al...L.--11-.

'.

-'Yr

15/8"-

A-12 CHANNEL

1-7/8"-1

3/8" -

0.-

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1 E/W.

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t.t

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IL_

A-12

Metal thickness is 12 Ga. (.105")

12

9/32

.925

re-

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A-12A

Elements of Section Channel

1%11:ir

tti:t

A-i2

1.89

A.12A·,:

AXIS X-X

Area of

• tct•onn

3.78-._

AXIS Y-Y

,(in·4)

Stin.,)

R(in.)

1(in.4)

S(in.3)

R(in)

.583

.188

.203

.581

.257

.316

.680

1.166

.920

.566

.910

.514

.632..

.680

1 = Moment of inertia

S = Section modulus

R = Radius of'gyration

Beam and Column Loads Data. 'Channel Catalog Number

A-12

Beam Span :or:Uribraced

Uniform Load at Stress of

Deflection at Stress of

Colu•Alill Height

25,000 PSI (lbs.)

25,000 PSI (in.)

18" 24" 30" 36"

.031 .055 .086

2213 1680 1340

.125 .168 .225 .356

72' 84" 96" 120"

2213 1680 1340 1125 950 855 690 555 490 433 335

-594 .693 .915 1.382

1125 950 757 484 336

18" 24" 30" 36" 42" 48" 60" 72" 84" 96" 120"

6530 4895 3800 3100 2700 2300 1930 1560 1360 1200 953

.018 .033 .050 .070 .097 .124 .203 .284 .393 .438 .680

42" 48" 60"

A-12A

.

Uniform Load (lbs.) Maximum When Maximum Allowable.Load Deflection = 32

of Column (lbs.) 11300 9700 8850 8600 7550 6720 5800 4970 4250 3500 2100

247 189 121 6530 4895 3800 3100 2700 2300 1930 1560 1210 926 593

·

24340 21800 21500 21000 20600 19900 17950 15940 14750 12650 8000

.

Beam loads: Loads listed are uniformly distributed, for loads concentrated at center of span multiply uniform load at table by .5 and multiply the deflection by .8. When deflection is not a factor use stress of 25,000 PSI. When deflection is a factor use deflection of *. Column loads: Loads listed are•.or unbraced heights as listed. Modulus of elasticity = 29,000,000 PSI. Slotted or

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