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Title: Effective Depth of Rectangular and Circular Columns for Shear Strength Calculations

Author(s): Halil Sezen, Sergio M. Alcocer, and Jack P. Moehle

Publication: Concrete International

Volume: 43

Issue: 7

Appears on pages(s): 37-41

Keywords: section, reinforcement, tension, compression

Date: 7/1/2021

Chapter 22 of the ACI 318-19 Code requires determination of the neutral axis depth before calculating the nominal shear strength at a section. However, the location of the neutral axis will vary with axial force and moment at a section. Thus, identical columns in a structure may have different depth values, leading to unnecessary complexity in building design. This article presents a procedure that simplifies the shear strength determination for reinforced concrete columns by eliminating the need to calculate the neutral axis depth.


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