Title:
Symmetrical Punching of Reinforced Concrete Slabs: An Analytical Investigation Based on Nonlinear Finite Element Modeling
Author(s):
Fernando Gonzalez Vidosa, MichaelL D. Kotsovos and Milija N. Pavlovic
Publication:
Structural Journal
Volume:
85
Issue:
3
Appears on pages(s):
241-250
Keywords:
bearing capacity; concrete slabs; failure mechanisms; stirrups; finite element method; loads (forces); punching shear; reinforced concrete; structural analysis; triaxial stresses; Structural Research
DOI:
10.14359/2609
Date:
5/1/1988
Abstract:
Existing experimental data for reinforced concrete slabs failing in punching have been used to validate a nonlinear finite element program for concrete, the main feature of which is the use of a realistic model for the material under generalized triaxial conditions. Theoretical predictions show good agreement with actual ultimate loads, regimes of behavior, crack patterns, and, when experimentally available, load-deflection curves. Such validation enables confident study of the various failure mechanisms. Both ductile and brittle (the latter with or without stirrups) modes of failure are investigated to encompass the full range of structural behavior.