**Problem 855**

If the distributed load in Prob. 854 is replaced by a concentrated load P at midspan, determine the moments over the supports.

**Answers:**

$M_1 = \dfrac{PL}{8} \cdot \dfrac{1}{\alpha + 2} = M_4$

$M_2 = -\dfrac{PL}{8} \cdot \dfrac{2}{\alpha + 2} = M_3$