Question

Why is bending moment zero at the end of a simply supported beam beam

Answer 1

The bending moment at ends ofsimply supported and roller supported beam is taken zero because the endsof simply supported beam resists the motion of the beam in two direction that is horizontal and vertical direction while the ends of roller supported beam prevents the beam in moving in only one direction

Answer 2

The bending moment at ends of simply supported and roller supported beam is taken zero because the ends of simply supported beam resists the motion of the beam in two direction that is horizontal and vertical direction while the ends of roller supported beam prevents the beam in moving in only one direction.