A 14-ft-long simply supported timber beam carries a P = 6.0 -kip concentrated load at midspan as shown. The cross-sectional dimensions of the timber are also shown. At section a-a, determine the magnitude of the shear stress in the beam at point H. A 3 ft O 38.4 psi O 41.4 psi 20.0 psi O 32.0 psi O 29.0 psi 7 ft P B 7 ft с X 3 in. 业 Z 1 in. ↑ H K 6 in. 15 in.

Structural Analysis
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Chapter2: Loads On Structures
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A 14-ft-long simply supported timber beam carries a P = 6.0 -kip concentrated load at midspan as shown. The cross-sectional
dimensions of the timber are also shown. At section a-a, determine the magnitude of the shear stress in the beam at point H.
A
3 ft
38.4 psi
O 41.4 psi
O 20.0 psi
32.0 psi
29.0 psi
a
a
7 ft
P
B
7 ft
X
↑
3 in.
✓
↓
1 in.
↑
H
K
6 in.
15 in.
Transcribed Image Text:A 14-ft-long simply supported timber beam carries a P = 6.0 -kip concentrated load at midspan as shown. The cross-sectional dimensions of the timber are also shown. At section a-a, determine the magnitude of the shear stress in the beam at point H. A 3 ft 38.4 psi O 41.4 psi O 20.0 psi 32.0 psi 29.0 psi a a 7 ft P B 7 ft X ↑ 3 in. ✓ ↓ 1 in. ↑ H K 6 in. 15 in.
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