Happy New Year Structurals:
I have come across a torsion problem in the SERM that is confusing me. On page 1-26 of the SERM, the problem states, "Because the required value of At/s=0.00466 in^2/in per arm is less than 25bw/fyt=0.0050 in^2/in, the minimum permissible area of longitudinal reinforcement is given by ACI eq. 11-24 as..."
Even though Alan Williams solves equation 11-23 and then 11-24, shouldn't the At/s<=25bw/fyt also be satisfied?
I think it all hinges on my understanding of what A/s is of page 1-25. Is A/s = (Av+2At)/s ?
I have come across a torsion problem in the SERM that is confusing me. On page 1-26 of the SERM, the problem states, "Because the required value of At/s=0.00466 in^2/in per arm is less than 25bw/fyt=0.0050 in^2/in, the minimum permissible area of longitudinal reinforcement is given by ACI eq. 11-24 as..."
Even though Alan Williams solves equation 11-23 and then 11-24, shouldn't the At/s<=25bw/fyt also be satisfied?
I think it all hinges on my understanding of what A/s is of page 1-25. Is A/s = (Av+2At)/s ?