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Civil Engineering QUESTION #6644
Question 1
What does a 'Plastic Hinge' in a reinforced concrete frame represent?
  • A point of zero moment
  • A zone where the reinforcement has yielded and large rotations occur at nearly constant moment✔️
  • A structural defect that must be avoided at all costs
  • A joint where concrete has completely crushed
Correct Answer Explanation
Plastic hinges allow for moment redistribution in indeterminate structures by allowing sections to rotate significantly after reaching their yield capacity.