sm7 129

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PROBLEM (7.129) For a C 6 x 10.5 channel, calculate the maximum shearing stress caused by a
Vy = 10 kips vertical shear force applied at the shear center S. (Refer to Table B.10.)
SOLUTION
Table B.10: C6x10
We have
max 0.343
3 0.314 1.5 0.343 1.72(3 )
2
Q=× × + × − 3
.082.3 in=
3
max
max 10 10 (3.082)
15.2(0.314)
y
z
VQ
Ib
τ
×
== ksi46.6
=
0.314 in.
y
2.034 in.
z
0.5 in.
C
6
in
.
Vy
tavg=0.343 in.
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