H.W 1 A beam is subjected to equal bending moments of M, = 45 kip ft, as shown in Figure 1a. sions (Figure 1b) 6.0 in., bz = 3.0 in., and dz = 2.0 in. Determine %3D The cross-sectional dimen- are b = 7.5 in., di = 1.5 in., b2 = 0.75 in., d = K (a) the centroid location, the moment of inertia about the z axis, and the controlling section modulus about the z axis. (b) the bending stress at point H. State whether the normal stress at H is tension or compression. (c) the bending stress at point K. State whether the normal stress at K is tension or compression. (d) the maximum bending stress produced in the cross seetion. State whether the stress is tension or compression. M. d by FIGURE 1. a FIGURE 1.b
H.W 1 A beam is subjected to equal bending moments of M, = 45 kip ft, as shown in Figure 1a. sions (Figure 1b) 6.0 in., bz = 3.0 in., and dz = 2.0 in. Determine %3D The cross-sectional dimen- are b = 7.5 in., di = 1.5 in., b2 = 0.75 in., d = K (a) the centroid location, the moment of inertia about the z axis, and the controlling section modulus about the z axis. (b) the bending stress at point H. State whether the normal stress at H is tension or compression. (c) the bending stress at point K. State whether the normal stress at K is tension or compression. (d) the maximum bending stress produced in the cross seetion. State whether the stress is tension or compression. M. d by FIGURE 1. a FIGURE 1.b
Chapter2: Loads On Structures
Section: Chapter Questions
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Timothy A_Philpot.
Bending stress H.W. x
C 다
1 /2
111%
b,
H.W 1 A beam is subjected to equal bending moments of M, =
45 kip ft, as shown in Figure 1a.
sions (Figure1b)
6.0 in., bz = 3.0 in., and dz = 2.0 in. Determine
The cross-sectional dimen-
are b1 = 7.5 in., d = 1.5 in., b2 = 0.75 in., d, =
K
(a) the centroid location, the moment of inertia about the z axis,
and the controlling section modulus about the z axis.
(b) the bending stress at point H. State whether the normal stress
at H is tension or compression.
(c) the bending stress at point K. State whether the normal stress
at K is tension or compression.
M.
d
b,
M.
d
(d) the maximum bending stress produced in the cross section.
State whether the stress is tension or compression.
FIGURE 1. a
FIGURE 1.6
H.W 2 A steel tee shape is used to support the loads shown on the beam in Figure 2 a.
dimensions of the shape are shown in Figure 2 b.
determine:
The
Consider the entire 24-ft length of the beam and
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