The strength if a W14 x 38 rolled-steel beam is increased by attaching a 9 x 3/4-in plate to its upper flange as shown. Determine the moment of inetia and the radius of gyration of the composite section with respect to an axis which is parallel to the plate and passes through the centroid C of the section.

The strength if a W14 x 38 rolled-steel beam is increased by attaching a 9 x 3/4-in plate to its upper flange as shown. Determine the moment of inetia and the radius of gyration of the composite section with respect to an axis which is parallel to the plate and passes through the centroid C of the section.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Center of Gravity and Centroid

The term center of gravity indicates the position or location of a point about which the whole weight of a body or system is supposed to be concentrated, which means the whole weight of the body or system works through this point. It is closely related to mass distribution. For all positions of the body, the center of gravity would be a single point.

Question

N
The strength if a W14 x 38 rolled-steel beam is increased by attaching a 9 x 34-in plate to its
upper flange as shown. Determine the moment of inetia and the radius of gyration of the
composite section with respect to an axis which is parallel to the plate and passes through
the centroid C of the section.
in.
9 in..
I
1
14.1 in.
C+
6.77 in.

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