RESEARCH ARTICLE
Effect of Rebar on Ductility of Moment-resisting Frame with Concrete-filled Tube Column
Alireza B. Amini1, *
Article Information
Identifiers and Pagination:
Year: 2019Volume: 13
First Page: 172
Last Page: 181
Publisher ID: TOCIEJ-13-172
DOI: 10.2174/1874149501913010172
Article History:
Received Date: 15/08/2019Revision Received Date: 19/09/2019
Acceptance Date: 29/09/2019
Electronic publication date: 05/12/2019
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Background:
Today, many developed countries use the Concrete-Filled Steel tube columns (CFT) to construct high-rise building and bridge piers.
Objective:
This paper investigates the effect of rebar inside the concrete core of CFT columns.
Materials and Methods:
For this purpose, the structural performance of three two-span frames is evaluated with ABAQUS software. The frames vary based on the presence or absence of rebar within the concrete core, so that the first model has no rebar, the second model has less rebar, and the third model has more rebar inside the concrete core.
Results and Conclusion:
The observations from the hysteresis curves obtained from the analyses suggest the more ductile behavior, greater stiffness, and higher energy dissipation potential in the third model relative to the other two models, so that the third model has about 24% more energy absorption capacity than the case without the rebar.
