________________________________________________________________________
PROBLEM (7.24) A W 8 x 35 steel beam (see Table B.8) is loaded as shown in Fig. P7.22. On a
section 4.2 ft to the right of C, calculate:
(a) The flexural stress at a point located ¾ in. below the top of the beam.
(b) The maximum bending stress on the section.
SOLUTION
From solution of
Prob. 7.22, on a
3.31 in.
0.75 in.
C
I
=127 in.4
y
4.06 in.
z
W 8x35
8.12 in.
Section 4.2 ft to
the right of C:
1.6(8.7) 4(4.2)M=−
2.88 kip ft=− ⋅
34.56 .kip in=− ⋅
(a) 3
34.56 10 (3.31) 901
127
p
si
σ
×
=− =−
(b) max 4.06
901 1105
3.31
p
si
σ
==
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