§ 1905.1.9. ACI 318, Section 18.7.5.  


Latest version.
  • Modify ACI 318, Section 18.7.5, by adding Section 18.7.5.8 and 18.7.5.9 as follows:

    18.7.5.8 Where the calculated point of contraflexure is not within the middle half of the member clear height, provide transverse reinforcement as specified in ACI 318, Sections 18.7.5.1, Items (a) through (c), over the full height of the member.

    18.7.5.9 At any section where the design strength, φP n , of the column is less than the sum of the shears V e computed in accordance with ACI 318 Sections 18.7.6.1 and 18.6.5.1 for all the beams framing into the column above the level under consideration, transverse reinforcement as specified in ACI 318 Sections 18.7.5.1 through 18.7.5.3 shall be provided. For beams framing into opposite sides of the column, the moment components may be assumed to be of opposite sign. For the determination of the design strength, φP n , of the column, these moments may be assumed to result from the deformation of the frame in any one principal axis.

(Ord. 2016-0053 § 40, 2016.)