Two 12 in 20.7 lb channels are latticed together to forn the section in the figure. Determine how far apart the channels should be placed so as to make Ixo equal to lyo for the section. Neglect the lattice bars which are indicated by the dashed lines. [1] Prop of 12 in. 20.7 lb channel ly. = 3.9 in X - 0.70 A = 6.03 in = 128.1 in4 Yo Yo 0.70 6.70 k

Structural Analysis
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Chapter2: Loads On Structures
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Two 12 in 20.7 lb channels are latticed together to form the section in the figure.
Determine how far apart the channels should be placed so as to make Ixo equal to
lyo for the section. Neglect the lattice bars which are indicated by the dashed lines.
[1]
Prop of 12 in. 20.7 lb channel
y. = 3.9 in
X = 0.70
A = 6.03 in
k, = 128.1 in
Yo
Yo
II
0.70
6.70
k
Transcribed Image Text:Two 12 in 20.7 lb channels are latticed together to form the section in the figure. Determine how far apart the channels should be placed so as to make Ixo equal to lyo for the section. Neglect the lattice bars which are indicated by the dashed lines. [1] Prop of 12 in. 20.7 lb channel y. = 3.9 in X = 0.70 A = 6.03 in k, = 128.1 in Yo Yo II 0.70 6.70 k
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