Title:
Axial Behavior of Columns Confined with Engineered Cementitious Composite
Author(s):
Khandaker M. Anwar Hossain, Sandeep Parajuli, and Tanvir Manzur
Publication:
Structural Journal
Volume:
119
Issue:
1
Appears on pages(s):
67-76
Keywords:
axial behavior; confined column; ductility; energy absorption capacity; engineered cementitious composite (ECC); load-deflection response; self-consolidating concrete (SCC); ultimate load capacity
DOI:
10.14359/51734217
Date:
1/1/2022
Abstract:
The axial behavior of self-consolidating concrete (SCC) columns confined with engineered cementitious composite (ECC) was investigated through experimental and analytical investigations. Both square and cylindrical-shaped columns were considered in the study. The other variables of the study were the presence or absence of longitudinal reinforcement, the thickness of ECC confinement, and the loading types. The behavior of the columns was evaluated in terms of the axial load-deflection response, strain characteristics, ultimate load-carrying capacity, ductility, energy absorption capacity, and modes of failure. It was found that the ECC confinement significantly increased the ultimate axial load capacity and energy absorption of the SCC columns. The confined columns also exhibited enhanced ductile behavior compared to the corresponding core column under axial loading. The confined concrete strengths predicted by existing analytical models were found to be in satisfactory agreement with the experimentally obtained values.
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