Abstract:
A concrete-filled steel tube-reinforced concrete-filled stainless steel tubular (CFST-CFSST)
column is a type of CFST column reinforced with an embedded steel profile. Wang et al. [1]
at first systematically investigated the inner carbon steel tube reinforced square CFST
column.
This study employs a non-linear finite element analysis using ABAQUS CAE 6.14 to predict
the behavior of CFST-CFSST columns. Six specimens were modeled and subjected to axial
compression tests to validate the models against experimental results provided by Wang et
al [1]. Key parameters such as ultimate axial strengths, axial load-strain curves, and
deformation patterns were compared to ensure the accuracy of the models. Extensive
parametric studies were conducted to investigate the effects of various geometric and
material parameters, including diameter-to-thickness ratio, concrete compressive strengths,
and steel yield strengths on the strength and ductility of CFST-CFSST columns.
Finally, this study also examined the deformation and damage patterns of the modeled
columns, which closely matched those of the tested specimens. This validation underscores
the effectiveness of the numerical models in accurately predicting the structural behavior of
CFST-CFSST columns under axial loading.
This thesis contributes valuable insights into the structural behavior of CFST-CFSST
columns and provides practical recommendations for their design and application in modern
construction projects
Description:
Supervised by
Dr. Md. Imran Kabir,
Assistant Professor,
Department of Civil and Environmental Engineering (CEE),
Islamic University of Technology (IUT) Board Bazar, Gazipur, Bangladesh
