Title:
A Design Perspective on Punching Shear
Author(s):
S.D.B. Alexander and N.M. Hawkins
Publication:
Symposium Paper
Volume:
232
Issue:
Appears on pages(s):
97-108
Keywords:
flexural reinforcement; punching shear; structural design
DOI:
10.14359/14938
Date:
10/1/2005
Abstract:
The ACI Code design equation for concentric punching shear is often criticized for failing to account for the effect of flexural reinforcement. This criticism is based on the poor performance of the code equation as a predictor of test results. However, in thecontext of design, the code works as well as any detailed analytical model available, witha fraction of the computation effort. This is because for non-prestressed slabs the codeequation correctly identifies the transition between flexural failure and shear failure,assuming the slab has been correctly designed for flexure. It is concluded that a strongargument can be made for retaining the current equation for concentric punching.