Authors :
Mostafa I. Mostafa; Nabil S. Mahmoud; Fikry A. Salem
Volume/Issue :
Volume 8 - 2023, Issue 10 - October
Google Scholar :
https://tinyurl.com/4hjy8vbp
Scribd :
https://tinyurl.com/duxvh8ym
DOI :
https://doi.org/10.5281/zenodo.10002739
Abstract :
It is possible to repair the I-shape steel
columns in many historic bridges by welding steel plates
to their flanges. However, after the column's reinforcing
plates have been welded to them, welding residual
stresses, initial imperfections and column load can all
have a major impact on the strength of the column. A
nominal axial resistance is the target for the steel column.
The steel column won't be able to support the intended
applied load under different conditions, such as changing
the building's use from residential to public or storage
(additional live loads), and strengthening is thus
necessary. Only a few experimental studies on the
strengthening of steel columns with welded cover plates
are currently available In order to evaluate the strength
behavior of strengthening steel columns using steel plates
welded parallel to the flange, either parallel to the web or
parallel to the flanges and the web combined, this paper
provides an experimental and numerical investigation.
Twelve specimens were tested using full-scale testing to
determine the failure mechanisms, development of
stresses, and load-deformation. Every column that was
tested had an IPE160 section with a different length. The
program ABAQUS/standard v. 6.13 was used to operate
the finite element model. Theoretical models correctly
predicted the axial load-carrying capacity of the plate-
strengthened columns under axially compression loading,
as shown by a comparison of the theoretical and
experimental data.
Keywords :
Strengthening, Steel Columns Cover Plate, Experimental, Axial Load, Finite Element Model, Initial Imperfection.
It is possible to repair the I-shape steel
columns in many historic bridges by welding steel plates
to their flanges. However, after the column's reinforcing
plates have been welded to them, welding residual
stresses, initial imperfections and column load can all
have a major impact on the strength of the column. A
nominal axial resistance is the target for the steel column.
The steel column won't be able to support the intended
applied load under different conditions, such as changing
the building's use from residential to public or storage
(additional live loads), and strengthening is thus
necessary. Only a few experimental studies on the
strengthening of steel columns with welded cover plates
are currently available In order to evaluate the strength
behavior of strengthening steel columns using steel plates
welded parallel to the flange, either parallel to the web or
parallel to the flanges and the web combined, this paper
provides an experimental and numerical investigation.
Twelve specimens were tested using full-scale testing to
determine the failure mechanisms, development of
stresses, and load-deformation. Every column that was
tested had an IPE160 section with a different length. The
program ABAQUS/standard v. 6.13 was used to operate
the finite element model. Theoretical models correctly
predicted the axial load-carrying capacity of the plate-
strengthened columns under axially compression loading,
as shown by a comparison of the theoretical and
experimental data.
Keywords :
Strengthening, Steel Columns Cover Plate, Experimental, Axial Load, Finite Element Model, Initial Imperfection.
