Abstract:
This study examines the web buckling resistance of tabular steel columns
reinforced with carbon fibre reinforced epoxy composite (CFRP) and filled with
engineered cementitious composites (ECC). While CFRP offers improved strength and
stiffness, the use of ECC as an infill material gives special ductility and energy dissipation
properties. In seismically vulnerable areas, the combination of these materials satisfies the
demand for resilient structural systems and promotes effective space utilisation in
buildings. To evaluate the performance of ECC-infilled steel columns under axial and
lateral loading circumstances, experimental and analytical approaches are used in the
research. The structural behaviour, load-carrying ability, and deformation characteristics
of the columns are assessed by a series of laboratory tests. It is found that the result of this
study reveals the significant enhancement in the overall structural performance of tabular
steel columns infilled with ECC and strengthened with CFRP. The combination of these
materials effectively delays web buckling, increases load-carrying capacity and strength,
and enhances energy dissipation capacity, making them a promising solution for improving
the seismic resilience of structures. The research findings contribute to the advancement of
sustainable and resilient construction practices, with potential applications in a wide range
of civil engineering projects.
