고체역학 (Gere) — Shear Forces and Bending Moments: Problem 4.3-13

4.3-13 Beam ABCD represents a reinforced concrete foundation beam that supports a uniform load of intensity \( q_1 = 40\text{ kN/m} \) (see figure). Assume that the soil pressure on the underside of the beam is uniformly distributed with intensity \( q_2 \). (a) Find the shear force \( V_B \) and bending moment \( M_B \) at point B. (b) Find the shear force \( V_m \) and bending moment \( M_m \) at the midpoint of the beam.