GATE Civil Engineering (CE) 2015 Shift 2 Solved Paper

A simply supported beam AB of span, L = 24 m is subjected to two wheel loads acting at a distance, d = 5 m apart as shown in the figure below. Each wheel transmits a load, P = 3 kN and may occupy any position along the beam. If the beam is an I-section having section modulus, Z = 16.2 cm³, the maximum bending stress (in GPa) due to the wheel loads is _______________________.