Title:
Two-Way Shear Strength of Slab-Column Connections: Reexamination of ACI 318 Provisions
Author(s):
Widianto, Oguzhan Bayrak, and James O. Jirsa
Publication:
Commentary Reference
Volume:
Issue:
Appears on pages(s):
160-170
Keywords:
building code; flat plate; slab-column connection; two-way shear strength.
DOI:
Date:
3/1/2009
Abstract:
In typical lightly-reinforced slab-column connections, extensive flexural yielding is likely to occur before the computed punching shear capacity is reached. The basic ACI 318 two-way shear strength provision has not changed since 1963 and was developed based on a statistical analysis of test results on scaled specimens that were believed to have failed in shear. Several researchers showed that the use of the basic ACI two-way shear strength provision yields results that were unconservative compared with the two-way shear strength of slabs in experimental tests. This paper shows that the applicability of the ACI 318 provisions for typical lightlyreinforced slabs is questionable.