In this research, we discussed an analytical
study of the seismic behavior of an internal joint, and we improved
the plastic response of the joint after observing the effect of the
concrete encasement to the column’s steel section along the
connection area.
The Steel/RC composite Column-beam connection joint is
considered one of the most important subjects in framed
construction. Ductility has the most influence among other
factors that control the behavior of this joint, and the nonlinear
behavior
of this joints when subjected to large and cyclic
loading is dominated by several parameters. These parameters
reflect the assembled components of the joint for every
component has a distinguished material and therefore specific
behavior under the loading corresponding to it.
Frame structuressystems contribute to resist the seismic loads. And there are many
techniques used to improve the resistance to lateral loads where steel shear walls,which is
embedded within the Frame span, are considered to be one of these ways.
This research aims to study the effect of strengthening of the reinforced concrete
frames by inserting partial steel plate shear walls, the opening is parallel to beams,
embedded within the frame. This study applied numerical analysis using Finite Element
Method (FEM) using nonlinear pushover analysis based on geometrical and Material Non-
Linear Analysis (GMNLA). Using these methods allow us to study the behavior of the
Partial steel plate that seal the whole span of the reinforced concrete frame with opening
parallel to beams against lateral loads.
This study conclude that using a partial steel plate shear wall, with opening parallel
to beams with reinforced- concrete frames can enhance the resistanceand the seismic
energy dissipation significantly.
This article summarizes a numerical and mathematical comparison between filled
and hollow X-shape plates to develop a new steel energy dissipative damper for structures
protection of earthquakes. The plate is a weld from two ends. Energy is dissipa
ted through
flexural yielding when the plate is subjected to inelastic cyclic deformation. The
performance of the plate was verified by five models by software ABAQUS and plastic
mechanism analysis. Results showed that the plate exhibited stable hysteresis and dissipate
energy with excellent values. It is Important to say all dimensions of plates and quality of
steel are verified by international articles. This article's interest lies in studying the effect
of openings on plate's dissipation energy.
