For the doubly reinforced concrete beam section, using fc=5,000psi, and fy=60000psi, calculate the following

a. Given that the tensile strain in the bottom most layer of reinforcement is epsalum=0.00778, calculate the design moment capacity of the beam section with consideration of both the tension and compression reinforcement contribution to the flexural strength

b. Is the beam section compression-controlled, tension-controlled, or transition

 

(2) #6 compression reinforcement 1'-10" #4 stirrups at 10" o.c. (14) #6 total 1'-6" 21" 12" clear (typ.) 2" on center 2.5