Authors :
Ahmed I. Saleh; Nabil S. Mahmoud; Fikry A. Salem; Mohamed Ghannam
Volume/Issue :
Volume 5 - 2020, Issue 12 - December
Google Scholar :
http://bitly.ws/9nMw
Scribd :
https://bit.ly/3r8axep
Abstract :
Steel-concrete composite structures are used
widely in the current construction of bridges and multistory buildings. Experimental and numerical studies
were conducted to investigate the behavior of composite
cold formed steel columns under axial load only with
lack of experimental investigation on composite cold
formed steel columns under lateral loads. This paper
conducted to investigate experimentally and numerically
the behavior of composite cold formed steel columns
under axial and lateral loads. Five specimens were tested
to evaluate the failure modes, strains development and
load-deformation histories in the steel tube. Finite
element (FE) models using ANSYS Workbench were
developed and verified against experimental results. The
verified FE will be used in future by the authors to study
the influence of key parameters that control the behavior
of composite cold forms steel columns, including cross
sections, fastener spacing, fastener length, yield strength
of steel, on the load carrying capacity. It was observed
from the obtained results that composite column with
sigma section show better behavior than C section
because of the web and flange for the sigma section are
both stiffened. The embedded fasteners length of 50mm
enhanced load carrying by 13% compared to 30mm
length.
Keywords :
Composite Columns, Finite Element Model, Cold Formed Steel, Axial Loads, Lateral Loads.
Steel-concrete composite structures are used
widely in the current construction of bridges and multistory buildings. Experimental and numerical studies
were conducted to investigate the behavior of composite
cold formed steel columns under axial load only with
lack of experimental investigation on composite cold
formed steel columns under lateral loads. This paper
conducted to investigate experimentally and numerically
the behavior of composite cold formed steel columns
under axial and lateral loads. Five specimens were tested
to evaluate the failure modes, strains development and
load-deformation histories in the steel tube. Finite
element (FE) models using ANSYS Workbench were
developed and verified against experimental results. The
verified FE will be used in future by the authors to study
the influence of key parameters that control the behavior
of composite cold forms steel columns, including cross
sections, fastener spacing, fastener length, yield strength
of steel, on the load carrying capacity. It was observed
from the obtained results that composite column with
sigma section show better behavior than C section
because of the web and flange for the sigma section are
both stiffened. The embedded fasteners length of 50mm
enhanced load carrying by 13% compared to 30mm
length.
Keywords :
Composite Columns, Finite Element Model, Cold Formed Steel, Axial Loads, Lateral Loads.
