Title:
FRCM confined reinforced concrete columns: experimental behavior and modeling
Author(s):
Luciano Ombres and Salvatore Verre
Publication:
Symposium Paper
Volume:
345
Issue:
Appears on pages(s):
102-116
Keywords:
FRCM, reinforced concrete column, confinement, modeling
DOI:
10.14359/51731574
Date:
2/1/2021
Abstract:
In the paper, the behavior of FRCM (Fabric Reinforced Cementitious Mortar) confined concrete columns
is analyzed both experimentally and theoretically. An experimental investigation was conducted on FRCM confined
reinforced concrete columns with square cross section (9 columns, 1000 mm height with 150x150 mm cross section)
subjected to eccentric axial load. Parameters investigated were the confining configuration (continuous and
discontinuous) and the eccentricity values. The obtained results in terms of failure modes, axial capacity, longitudinal
and transversal strain, were presented and discussed. The behavior of FRCM confined columns were analyzed
analytically through a model found based on the non-linear constitutive law of the confined concrete, developed for
short columns, and numerically by a model found on a Finite Element procedure developed through Abaqus. The
accuracy of both models was assessed by the comparison between numerical predictions and experimental results.
The main results of the analysis allow evidencing the effectiveness of the FRCM confinement and the influence of
geometrical and mechanical parameters on the structural response of reinforced concrete columns.