A cantilever beam of length L=6 ft supports a uniform load of intensity q = 200 lb/ft and a concentrated load P = 2500 lb. Calculate the required section modulus if the allowable stress is 15000 psi. Select a suitable wide flange beam from the table. W8X35 W8X28 W8X21 W8X15 Weight per foot lb 35 28 21 15 Area Depth In² 10.3 8.25 6.16 4.44 in 8.12 8.06 8.28 8.11 Web Thickness Width in 0.310 0.285 0.250 0.245 9= 200 lb/ft Flange In 8.020 6.535 5.270 4.015 L=6 f Thickness in 0.495 0.465 0.40 0.315 P=2500 lb I in 127 98 75.3 48 I S in³ 31.2 24.3 18.2 11.8
A cantilever beam of length L=6 ft supports a uniform load of intensity q = 200 lb/ft and a concentrated load P = 2500 lb. Calculate the required section modulus if the allowable stress is 15000 psi. Select a suitable wide flange beam from the table. W8X35 W8X28 W8X21 W8X15 Weight per foot lb 35 28 21 15 Area Depth In² 10.3 8.25 6.16 4.44 in 8.12 8.06 8.28 8.11 Web Thickness Width in 0.310 0.285 0.250 0.245 9= 200 lb/ft Flange In 8.020 6.535 5.270 4.015 L=6 f Thickness in 0.495 0.465 0.40 0.315 P=2500 lb I in 127 98 75.3 48 I S in³ 31.2 24.3 18.2 11.8
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A cantilever beam of length L = 6 ft supports a uniform
load of intensity q = 200 lb/ft and a concentrated load
P = 2500 lb. Calculate the required section modulus if the
allowable stress is 15000 psi. Select a suitable wide flange
beam from the table.
W8X35
W8X28
W8X21
W8X15
Weight
per foot
lb
35
28
21
15
Area Depth
2
In²
10.3
8.25
6.16
4.44
in
8.12
8.06
8.28
8.11
in
0.310
0.285
0.250
0.245
9= 200 lb/ft
Flange
Web
Thickness Width Thickness
In
8.020
6.535
5.270
4.015
L=6 f
in
0.495
0.465
0.40
0.315
P = 2500 lb
I
in4
127
98
75.3
48
I
S
in³
31.2
24.3
18.2
11.8
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