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L carries a vertical concentrated load P acting through the centroid C at
the midpoint of the span (see figure). The beam is attached to supports
inclined at an angle to the horizontal.
Determine the orientation of the neutral axis and calculate the
maximum stresses at the outside corners of t
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Chapter 5,
calculate the maximum shear stress in the web of the beam and
compare it with the stress obtained in part (a).
Solution 6.8-3 Wide-flange beam
SECTION 6.8 Beams with Inclined Loads 403
b 5.25 in. h 7.9 in. tw 0.25 in.
tf 0.4 in. V 6.0 k
(a) CALCULATIONS BASED ON CENTERLIN
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Problem 7.3-9 A shear wall in a reinforced concrete building is
subjected to a vertical uniform load of intensity q and a horizontal force
H, as shown in the first part of the figure. (The force H represents the
effects of wind and earthquake loads.) As a consequence of these loads,
the stresses
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the deflection curve is nearly flat.
Then the distance BC is the same as the length L
of the beam.
arcsin 0.02 0.02 rad
(1 cos ) (75 m)(1 cos (0.02 rad))
15.0 mm
NOTE: which confirms that the deflection
curve is nearly flat.
L
100,
∴ sin u
L
r
1.5 m
75 m
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Solution 4.3-12 Beam with trapezoidal load
266 CHAPTER 4 Shear Forces and Bending Moments
Reactions
RA 65kN
RB 55kN
RARB12 (50 30 kNm) (3 m) 0 kNm
©FVERT 0
c
(20 kNm)(3 m)(12)(2 m) 0
©MB0 RA(3 m) (30 kNm)(3 m)(1.5 m)
Free-body diagram of section CB
Point
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