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 studies the behavior of the soft story in RC structures using
static analysis and dynamic analysis, where studying models of RC
structures containing soft story where this story results from increased
hieght of story than the rest st
orys, was conducted static analysis using
Nonliner pushover analysis and dynamic analysis using Nonliner time
history analysis
This paper presents the results of analyzing 17 models with
nonlinear static analysis. The models are 5, 10 and 15-story framewall
structures with Re-entrant corners. The participations of frames
to resist the shear force range between 25% and 60%
.
Using Finite Element Analysis (FEA), a comparison between
PushOver Analysis (POA) and Response Spectrum Analysis (RSA)
is done in this research to explore the application limits of POA on
the irregular frame buildings from reinforced concrete.the
comparison contains (failure mechanism, displacement, and
ductility).
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.
In the study, it was customary to consider
each column in the building as a cantilevered element in resisting
the lateral loads.
Frame structures contribute to resist the seismic loads. On the other hand, many techniques were used to improve the resistance against lateral loads where steel shear walls are considered to be one of these ways.
This research aims to study the eff
ect of strengthening of the
reinforced concrete frames inserting perforated steel plate shear walls embedded within the frame. This study applied numerical analysis using Finite Element Method (FEM) using nonlinear pushover analysis based on geometrically and Materially Non-Linear Analysis (GMNLA) was performed. To study the behavior of the steel plate that seal the hall span of the reinforced concrete frame against lateral loads. Moreover, perforated steel plate was studied taking under consideration the effect of the number and the area of the perforations and strengthening of the perforations circumference on the resistance was observed.
This study conclude that using a perforated steel plate shear wall with reinforced- concrete frames and strengthening of the perforations circumference can enhance the resistance significantly beside that it decrease the frame deflection.
Pushover method or method of nonlinear static analysis is considered the latest and best way to study and evaluate the buildings under effect of seismic load. The method is based on the study of deformation occurring in the building, formation of pl
astic hinge in elements, in addition to the redistribution of internal forces in building elements under the effect of earthquake loads. Pushover method was applied to evaluate the Model of residential buildings in Latakia suburb Tabiyat, who has designed and implemented before the issuance of the code which earthquake load considered.
First, the dynamic characteristics of the building (Period, and Mode shape) were identified in the cases of modeling 2D (plane) and 3D (spatial). Second, an analysis of the building under earthquake load by Pushover method depending on ETABS Program was conducted. We have got seven side cases push of the building, and have identified the location of plastic hinge in the building elements, and draw a curved capacity for the building, which represents the relationship between base shear force and lateral deflection at the top of the building. It was concluded that the building is a good resistance to the effect of earthquake.
It was concluded with backing the adoption of Pushover method to evaluate existing buildings, and study the dynamic behavior, and the extent of resistance to the effect of earthquake.
Frame structures contribute to resist the seismic loads. On the other hand, frames
work efficiently to increase the ductility of buildings. Therefore, many techniques were
used to improve the resistance against lateral loads where steel shear walls
are considered
to be one of these ways.
This research aims to study the effect of inserting steel shear wall on the resistance of
the reinforced concrete frame against earthquake loads. In this study, Finite Element
Method (FEM) using Geometrically and Materially Non-Linear Analysis (GMNLA) was
performed. Pushover analysis is used to explore the behavior of the steel plate in-filled
reinforced concrete frame against lateral loads. Moreover, the effect of plate thickness was
undertaken. On the other hand, an opening is made in this plate. Then, the influence of the
position and dimension of this opening on the resistance was observed.
This study shows that using a steel plate shear wall with or without opening can
enhance the resistance to seismic loads significantly together with the deflection decrease.
