Authors :
Dr. Haitham Hasan Muteb Aldaami; Jenan N. Almusawi
Volume/Issue :
Volume 6 - 2021, Issue 10 - October
Google Scholar :
http://bitly.ws/gu88
Scribd :
https://bit.ly/3v5QQZ5
DOI :
https://doi.org/10.5281/zenodo.6223089
Abstract :
Open web steel joists are truss-type members
are proven they are standing strength to weight ratio,
flexible and adaptable design characteristics, amazing
durability, and economic advantages. Its consists of five
components, the top chord, the bottom chord, the end
web, Bearing seat, and the interior web member. Openweb steel joists are used extensively in floors and roofs in
many types of structures. In this research an
experimental investigation was conducted to determine
strength and general flexural behavior of prefabricated
hybrid open web steel joists (HOWSJS) under central
single concentrate static load. The aim of this research
was to study the effect of using different diameter of
interior web members on flexural behavior based on
failure modes, load-deflections curve, and strains in the
top, bottom chords and in the interior web members. A
Joist (truss-form beam) fabricated in different steel
materials has been analyzed in the Finite Element
program ABAQUS. The aim was to understand and
explain the performance of a loaded steel truss beam and
comparing results from analyses performed with Finite
Element method vs. experiments. The investigation was
done for a four simply supported joists with a span of
(1.8m) and a height of (500 mm) meter with welded
connections which members directly fastened to each
other (without intermediate plates). The results indicated
that there was a significant enhancement in the behavior
of HOWSJ when the diameter of interior webs increased,
where The ultimate load capacity of HOWS increased by
(25.4%) when the diameter of interior web increased by
about (24.5%).
Keywords :
Steel Joist, Interior Web members, Open Web
Open web steel joists are truss-type members
are proven they are standing strength to weight ratio,
flexible and adaptable design characteristics, amazing
durability, and economic advantages. Its consists of five
components, the top chord, the bottom chord, the end
web, Bearing seat, and the interior web member. Openweb steel joists are used extensively in floors and roofs in
many types of structures. In this research an
experimental investigation was conducted to determine
strength and general flexural behavior of prefabricated
hybrid open web steel joists (HOWSJS) under central
single concentrate static load. The aim of this research
was to study the effect of using different diameter of
interior web members on flexural behavior based on
failure modes, load-deflections curve, and strains in the
top, bottom chords and in the interior web members. A
Joist (truss-form beam) fabricated in different steel
materials has been analyzed in the Finite Element
program ABAQUS. The aim was to understand and
explain the performance of a loaded steel truss beam and
comparing results from analyses performed with Finite
Element method vs. experiments. The investigation was
done for a four simply supported joists with a span of
(1.8m) and a height of (500 mm) meter with welded
connections which members directly fastened to each
other (without intermediate plates). The results indicated
that there was a significant enhancement in the behavior
of HOWSJ when the diameter of interior webs increased,
where The ultimate load capacity of HOWS increased by
(25.4%) when the diameter of interior web increased by
about (24.5%).
Keywords :
Steel Joist, Interior Web members, Open Web
