Use of steel plate shear walls for the lateral rigidity improvement of reinforced concrete frame

2014 ◽  
pp. 2056-2061
Author(s):  
S Korkmaz ◽  
H Korkmaz
Keyword(s):  
Reinforced Concrete ◽  
Steel Plate ◽  
Shear Walls ◽  
Reinforced Concrete Frame ◽  
Steel Plate Shear Walls ◽  
Concrete Frame ◽  
Lateral Rigidity

scholarly journals Global Retrofitting Strategies for an Existing Three-storied RC School Building in Mandalay, Myanmar

2020 ◽  
Vol 37 (2) ◽  
Author(s):  
Thiri Thwe ◽  
Nang Su Le′ Mya Thwin ◽  
Ne Min Hein
Keyword(s):  
Reinforced Concrete ◽  
Steel Plate ◽  
Pushover Analysis ◽  
Shear Walls ◽  
Earthquake Hazard ◽  
Vulnerability Index ◽  
Seismic Zone ◽  
Index Method ◽  
Steel Plate Shear Walls ◽  
Existing Building

Low to severe earthquakes occur around the world every year, damaging and causing structural failure in buildings. Consequently, seismic improvements are required for existing buildings that are vulnerable to damage by seismic forces. The objective of this study was to investigate retrofitting strategies in terms of their sustainability. Mandalay, Myanmar, was selected as the study area as it is located near the Sagaing fault, which itself is in a strong earthquake zone (seismic zone 4). A three-storied RC building with a non-seismic design was selected as a case study building. An investigation was carried out into the performance and vulnerability of the building under three earthquake hazard levels. The vulnerability index value was calculated using the Priority Index method. Meanwhile, non-linear static pushover analysis was performed to investigate the performance of the existing building using SAP2000 V14 software. Four different types of retrofitting strategies were considered, namely reinforced concrete shear walls with openings, reinforced concrete shear walls without openings, steel plate shear walls, and finally steel bracing. Among these, it was found that the use of steel plate shear walls was the best retrofitting technique, owing to it having the best performance along with the lowest displacement. Its performance level reached up to the Immediate Occupancy (IO) level even under the conditions of a Maximum Consider Earthquake (MCE).

scholarly journals The effects of Steel Plate Shear Wall on Residual Capacity of Reinforced Concrete Frame under Sequence Earthquakes by Incremental Dynamic Analysis

2021 ◽  
Author(s):  
Hamze Rouhi ◽  
Majid Gholhaki
Keyword(s):  
Reinforced Concrete ◽  
Dynamic Analysis ◽  
Steel Plate ◽  
Shear Wall ◽  
Seismic Sequence ◽  
Reinforced Concrete Frame ◽  
Steel Plate Shear Wall ◽  
Concrete Frame ◽  
Tall Structures ◽  
Residual Capacity

Abstract The residual capacity of a damaged structure after the main earthquake is equal to the smallest spectral acceleration of the first mode, which causes local or general failure during the aftershock. In this research, the effect of steel plate shear wall on residual capacity of the reinforced concrete frame under seismic sequence has been investigated. Based on this, four systems of 4, 8, 12, and 24 stories, which represent short, intermediate, tall, are modeled in finite element software and subject to three sets of single and real seismic sequence, taking into account the damage, the effects of mainshock earthquakes have been analyzed under aftershock earthquakes nonlinear increment dynamic analysis (IDA). The analysis showed that in the real seismic sequence, the residual capacity of a reinforced concrete frame with steel plate shear wall in short and intermediate structures on average 3.6 times and tall structures up to 4.25 times compared to the residual capacity of the reinforced concrete frame without steel plate shear wall. Also, in the real seismic sequence, the residual capacity of the structure decreased with increasing the height of short to intermediate structures and intermediate to tall structures, so that this capacity reduction decreased by an average of 70% in reinforced concrete frame with and without steel plate shear wall.

scholarly journals Study on the New Method of Constructing Shear Walls in Multi-Storey Buildings With Site Cast Reinforced Concrete Frame System

2021 ◽  
Vol 1 (2) ◽  
Author(s):  
Lusine Gurgen Karapetyan ◽  
Tigran Vardan Ter-Poghosyan
Keyword(s):  
Reinforced Concrete ◽  
Residential Building ◽  
Shear Walls ◽  
Reinforced Concrete Frame ◽  
Concrete Frame ◽  
Thermal Insulating ◽  
First Case ◽  
Seismic Force ◽  
The Republic ◽  
The Impact

The article touches upon the comparative analysis of bearing system calculations of a multi-storey residential building with site cast reinforced concrete frame and shear wall constructed by two different methods.  In the calculation models, the shear walls are constructed from site cast reinforced concrete in the first case, and from three-layer sound and thermal insulating bearing panels in the second. The calculations have been made considering the impact of the seismic force. According to the calculation results, the dynamic parameters of the bearing systems of the buildings and the economic efficiency indicators have been compared. Considering the fact that in the recent years three-layer sound and thermal insulating panels have been widely used in the world, the study attempted to reveal the efficiency of using such panels in the Republic of Armenia.

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