Title:
ACI 318-02 in Practice
Author(s):
Tran Manh Tuan
Publication:
Concrete International
Volume:
25
Issue:
5
Appears on pages(s):
71-75
Keywords:
DOI:
Date:
5/1/2003
Abstract:
The American Concrete Institute adopted “Building Code Requirements for Structural Concrete (ACI 318-02) and Commentary (ACI 318R-02)” as a standard on November 1, 2001. Changes include load factors and strength reduction factors, which were revised to be consistent with ASCE 7-98. For the design of members, the Code also introduces new concepts of “compression-controlled” and “tension-controlled” sections. This article summarizes the strength reduction factors (f) to be used for design of reinforced and prestressed members. The author has developed expressions for the strength reduction factors for reinforcement other than Grade 60 (fy = 60 ksi [420 MPa]).