Flexural Stress:

Problem $1.$ A simple$-$span, uniformly loaded $W1886$ beam has a $F_y=50$ksi.

a$)$ Compute the limiting bending moment assuming an elastic stress condition $(M_y).$

b$)$ Compute the limiting bending moment assuming a plastic stress condition $(M_p).$

Moment Capacity:

Problem $2.$ Perform the following computations for a W $1636$ steel beam:

a$)$ Compute the limiting plastic length $(L_p)$ and the second limiting length $(L_r).$

b$)$ Determine the nominal resisting moment capacity $(M_n)$ for an unbraced length of $5$ ft $.$

c$)$ Determine the nominal resisting moment capacity $(M_n)$ for an unbraced length of $10$ ft $.$