A simply supported beam, 6 m, carries central point load 12 kN. Find reactions and max bending moment.

 A simply supported beam, 6 m, carries central point load 12 kN. Find reactions and max bending moment.

Solution:

• Reactions: $R_A = R_B = 12/2 = 6 \text{ kN}$

• Max bending moment: $M_{max} = PL/4 = 12 \cdot 6/4 = 18 \text{ kNm}$

Answer: RA = RB = 6 kN, Mmax = 18 kNm