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Lap splices in the longitudinal bars of a column in a ductile frame are permitted only

  • A.nowhere at all
  • B.within the central half of the member length
  • C.immediately at the face of the beam-column joint
  • D.within the confining length at either end

Answer: B

The ends of the column are where hinging and the largest bar stresses occur, and a splice there would be the weakest point at the worst location. Confining the splices to the middle half places them where the moment is smallest.

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