Explanation: Shear Force: Shear force at any section is the summation of all transverse loading, either to the left or to the right of any section. Bending Moment: Bending moment at any section is a resultant algebraic sum of moments caused by transverse forces either from the left or right of the section. Relationship between bending moment, shear force, and loading: The rate of change of shear force at any section is equal to load intensity at that section.