Title: Expanding the Use of Material φ Factors

Author(s): Charles W. Dolan and Raul D. Bertero

Publication: Concrete International

Volume: 45

Issue: 3

Appears on pages(s): 44-48

Keywords: strength, concrete, reinforcement, design

DOI:

Date: 3/1/2023

Abstract:
The concept of “partial strength reduction factors” has long been used in Canadian, British, and European building codes. Expanding the use of material ϕ factors (one for concrete and one for steel reinforcement) to all sections and members would provide a uniform approach to factored strength calculations and resolve several abnormalities in the current ACI 318 Code.