Structural Frame system is considers as an earthquake resisting structural
systems. On the other hand, many techniques were used to improve the
resistance against lateral loads. where Steel Plate Shear Wall fixed within
frame span is one of those
techniques.
This research aims to develop the Strip model of Partial Steel Plate Shear
Walls with Reinforced-Concrete Frame with opening parallel to beams.
This research aims to decrease the cost of last production stages
through decreasing the cost of potential casing repair by avoiding the
problems that casing string may be exposed to. Such problems are
caused by the temperature effect of salt dril
ling fluids as well as other
fluids normally existed in the annular behind casing at the nonecemented
intervals.
Design of experiments (DOE)
had been used in the study, and the results had been evaluated by the
surface response method. The results showed that the welding
current is the main parameter by its effect on the mechanical studied
properties and the parameters values which give the best responses
had been determined.
This research aims to increase the production lifetime of oil and gas
wells through avoiding the problems that production casing string
may be exposed to. Such problems are caused by the effect of different
drilling fluids as well as other fluids normally existed in the annular
behind casing at the none-cemented intervals.
This research investigates the behavior of RC frames
strengthened using steel jacket technique and the impact of using
this technique on the frame specifications was examined in terms of
rigidity, ductility and resistance.
As a result of the industrial progress absolved by the world in all
fields, new materials have been produced that have excellent
engineering properties at low economical cost. Therefore, we have
done this research by greening a composite material with a metal
base (aluminum 6061) reinforced with stainless steel wire A304.
Braced frames and steel plate shear walls (SPSWs) have both been shown
to be useful in the seismic retrofit of buildings. While both
these systems have merit, no guidance exists to determine which of the
two approaches is preferable in terms of pr
oviding maximum
displacement ductility and energy dissipation per cycle for a given
strength. This paper describes and compares results from numerical
evaluation using FEM, in which the nonlinearity of materials and the
nonlinear effects of the large displacement was included for tow frames.
The results of numerical study was identical to the experimental tests,
then a barometric study was achieved by changing the thickness of infill
plate then the area of the cross sections of braces, after that the width of
the frame was modified.
The result shown that using steel infill plate is preferable when the
dimension of bay is three times the height, while using braces is more
adequate for frames in which the dimension of bay is less than three times
the height.
This paper presents the shear behavior of lightweight concrete beams
without shear reinforcement produced by scoria aggregates. A total of nine
beams were tested under four-point loads, including three lightweight
concrete beams without steel fibers and six steel fiber reinforced
lightweight concrete beams.
Thin walled Steel products are very much used in the construction industry, where it
is cold formed from uniform thickness steel plates. This study aims at determining the
optimal section of cold formed thin walled lipped C compressed member under
the effect
of several levels of axial force using Genetic Algorithm.
The research found that the genetic algorithm is able to resolve the issue of the
optimal design of studied column with high efficiency, accuracy. Also it found that the
torsional flexural buckling constraint and the overall buckling constraint in x-direction are
the effective constraints in case of long height.
The study recommends restudying the same issue as a multi objective optimization
problem by adding additional objective functions which are the overall buckling in x&y
directions.
The corrosion inhibition of transmision steel in 1M HCl solution in
the presence of Vanillin at temperature (20,30,40,50,60)°C at
concentration between (100-500) ppm for two hours were studied
using weight loss method.
