| dc.description.abstract | This study presents a simulation analysis of the non-linear behavior of retrofit concrete material due to
uniaxial loads modeled in the form of cylinders measuring 150 mm in diameter and 200 mm in depth
using the ABAQUS. Analysis of this auxiliary program includes cases of normal concrete retrofit,
concrete with retrofit concrete with a composition of 1% steel fiber, and concrete with retrofit concrete
composed of 2% steel fiber. From the results of the study conducted, it was shown that in modeling the
properties of concrete damaged plasticity in ABAQUS, the use of accurate compressive behavior
equations for concrete cases with normal concrete retrofit was core concrete and retrofit concrete using
the Alfarah, et al equation. For the case of concrete with steel fiber composition retrofit, core concrete
uses the Alfarah equation, and retrofit concrete uses Zhou Jiajia, et al. Whereas to model the tensile
behavior accurately in the case of concrete with normal concrete retrofit using the Alfarah, et al
equation. And the case of concrete with retrofit steel fiber compositions using the CEB-FIB equation
and the Ali & Nehdi equation. The results of ABAQUS analysis of force vs. displacement show a
graphical pattern close to the similarity of retrofit concrete column experimental results ECC1 error
force ratio and displacement 14.86% and -10.60%, and ECC2 14.82% and 8.01). Based on the stress
analysis shows that there is a gradual increase in core concrete where the peak of stress is found in the
core area of the concrete core and in the retrofit area is divided into two regions, namely stressing on
the center and pulling on a small part of upper and lower column retrofit | en_US |
