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Civil Engineering QUESTION #6600
Question 1
Longitudinal torsional reinforcement bars must be distributed along the __________ of the member cross-section:
  • Bottom face only
  • Top face only
  • Mid-depth only
  • Entire perimeter✔️
Correct Answer Explanation
ACI 318 requires torsional longitudinal steel to be distributed around the perimeter (inside the closed stirrups) at a maximum spacing of 300 mm (12 in.), to effectively resist the torsional moment throughout the section.