Title: Load-Carrying Capacity of Square Footing under Concentric and Eccentric Loading

Author(s): Giuseppe Campione

Publication: Structural Journal

Volume: 117

Issue: 3

Appears on pages(s): 117-130

Keywords: beam model; concrete crushing; elastic soil; footing; punching shear; strut-and-tie model

DOI: 10.14359/51720202

Date: 5/1/2020

Abstract:
In this paper, a simplified calculus model for the prediction of the load-carrying capacity of reinforced concrete (RC) column footings with square cross sections under concentric and eccentric loading is presented. Several subgrade contact pressure distributions for column footings (rigid or soft soils) were considered. A detailed background of existing models for prediction of load-carrying capacity of slender and deep footings was presented. The aim of the paper was the proposal of a strut-and-tie model to predict the load-carrying capacity of a single column footing. Analytical results generated with the available models and with the available experimental results were compared. Effects of main parameters such as geometry of footing and column (depth, width) and mechanical ratio of longitudinal steel and type of soil are investigated. The comparison between analytical and numerical results allows one to validate the proposed model.