A beam of length L=8.1 m is being designed to support a uniform load of intensity q = 9.7 kN/m. If the supports of the beam are placed at the ends, creating a simple beam, the maximum bending moment in the beam is . However, if the supports of the beam are moved symmetrically towards the middle of the beam (as shown in the figure), the maximum bending moment is reduced. Determine the distance 'a' in 'm' between the supports so that the maximum bending moment in the beam has the smallest possible numerical value.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A beam of length L=8.1 m is being designed to support a uniform load of intensity q = 9.7 kN/m. If the
supports of the beam are placed at the ends, creating a simple beam, the maximum bending moment in
the beam is . However, if the supports of the beam are moved symmetrically towards the middle of the
beam (as shown in the figure), the maximum bending moment is reduced. Determine the distance 'a' in
'm' between the supports so that the maximum bending moment in the beam has the smallest possible
numerical value.
A
B
-L·
Transcribed Image Text:A beam of length L=8.1 m is being designed to support a uniform load of intensity q = 9.7 kN/m. If the supports of the beam are placed at the ends, creating a simple beam, the maximum bending moment in the beam is . However, if the supports of the beam are moved symmetrically towards the middle of the beam (as shown in the figure), the maximum bending moment is reduced. Determine the distance 'a' in 'm' between the supports so that the maximum bending moment in the beam has the smallest possible numerical value. A B -L·
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