Title: Application of Strip Model to Edge Column-Slab Connections Loaded with Outward Eccentricity

Author(s): Bernardo Carrera, Eva O.L. Lantsoght and Scott D.B. Alexander

Publication: Symposium Paper

Volume: 353

Issue:

Appears on pages(s): 124-141

Keywords: arched strut, columns, eccentric punching shear, reinforced concrete, slabs, strip model

DOI: 10.14359/51737115

Date: 7/1/2022

Abstract:
The strip model describes a load path prior to failure that can be tailored to a wide range of slabs under concentrated loads, both concentric and eccentric. Eccentric punching shear can occur in concrete slab-column connections subjected to shear and unbalanced moment, such as edge and corner columns. This paper shows how the strip model is applied to experiments of edge column-slab connections tested with outward eccentricities, and compares this approach to the traditional and simplified ACI 318-19 approaches for dealing with eccentric punching shear. This work shows how a lower-bound plasticity-based model can be used for the practical case of the slab-column capacity for edge and corner columns, how it may explain the mechanics behind the ACI code provisions, and can help researchers identify adequate test setups for future experiments.