Question: A simple beam AB of span length L = 24ft is subjected to two wheel loads acting at distance = 5 ft apart (see figure).

A simple beam AB of span length L = 24ft is subjected to two wheel loads acting at distance = 5 ft apart (see figure). Each wheel transmits a load P = 3.0 k, and the carriage may occupy any position on the beam.
Determine the maximum bending stress Ïƒ max due to the wheel loads if the beam is an I-beam having section modulus S = 16.2 in.3

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