57_Problem CHAPTER 9

57_Problem CHAPTER 9 - PROBLEM 9.53 Two L3 3 1-in angles...

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PROBLEM 9.53 Two L3 × 3 × 1 4 -in. angles are welded to a C10 × 20 channel. Determine the moments of inertia of the combined section with respect to centroidal axes respectively parallel and perpendicular to the web of the channel. SOLUTION Angle: 2 1.44 in A = 4 1.24 in xy II == Channel: 2 5.88 in A = 44 2.81in 78.9 in Locate the centroid 0 X = () ( ) 22 2 1.44 in 0.842 in. 5.88 in 0.606 in. 2 1.44 in 5.88 in Ay Y A  +− Σ  Σ + ( ) 3 4 2.42496 3.5638 in 0.12995 in. 8.765 in Now () () () ( ) 2 42 LC 2 2 1.24 in 1.44 in
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This note was uploaded on 07/11/2011 for the course EGM 2511 taught by Professor Jenkins during the Spring '08 term at University of Florida.

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