PROBLEM 9.53 Two L3 ×3 ×14-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: 21.44 inA=41.24 inxyII==Channel: 25.88 inA=442.81in78.9 inLocate the centroid 0X=()( )222 1.44 in0.842 in.5.88 in0.606 in.2 1.44 in5.88 inAyYA+−ΣΣ+( )342.424963.5638 in0.12995 in.8.765 in−−Now () () ()( )242LC22 1.24 in1.44 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.