2655Civil EngineeringMedium
When a series of wheel loads crosses a simply supported girder, the maximum bending moment under any given wheel load occurs when________?
Anone of the above
Bthe wheel load under consideration is midway between the centre of span and the centre of gravity of the load system
Cthe centre of gravity of the load system is midway between the centre of span and wheel load under consi-deration
Dthe centre of span is midway between the centre of gravity of the load system and the wheel load under consideration
Correct answer
D. the centre of span is midway between the centre of gravity of the load system and the wheel load under consideration
Explanation
The correct answer is the centre of span is midway between the centre of gravity of the load system and the wheel load under consideration.