International Research Journal of Engineering and Technology (IRJET) Volume: 10 Issue: 04 | Apr 2023
www.irjet.net
e-ISSN: 2395-0056 p-ISSN: 2395-0072
SEISMIC RESILIENCE PERFORMANCE OF CORRUGATED STEEL SLIT SHEAR WALLS Aiswarya P. T.1, Gouri S. Kumar 2 1Student,Dept.of civil Engineering, Universal Engineering College, Vallivattom, Kerala, India
2Assistant Professor, Dept. of Civil Engineering, Universal Engineering College, Vallivattom, Kerala, India
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Abstract -The aim of the study is to understand the factors that contribute to the hysteresis behavior of corrugated steel slit
shear walls. The study designed several models to investigate the effect of design parameters, including effective corrugatio n angles, slit number, angle of corrugation, and steel property. The design procedure focused on ensuring that the shear walls exhibit plastic deformations before yielding to increase energy dissipation. The study found that the placement angle, height, number of slits, and spacing of the corrugation significantly influence the seismic performance of the steel corrugated plate shear walls. The analysis revealed that the seismic performance of the shear wall was best when the corrugation was placed at an angle of 90◦. Additionally, the study investigated the effectiveness of splitted slits and found that a combination of full slit and splitted slit improved the performance of the best model. Finally, the study compared the hysteresis behaviors of models with and without slits to understand the impact of slits on the behavior of the shear wall. Overall, the study provides insights into the design parameters that can improve the seismic performance of corrugated steel slit shear walls and highlights the importance of considering hysteresis behavior in the design process. Key Words: corrugated steel plate shear walls, slits, ANSYS, hysteresis behaviour, FEMA
1. INTRODUCTION Steel Plate Shear Wall (SPSW) systems have become increasingly important in recent years as a lateral force-resisting system in buildings. They are used in many different countries and building types due to their ability to withstand earthquakes and other lateral forces. Energy dissipation technologies have been developed to mitigate damage in structures during seismic events. These technologies use materials such as steel plates, steel bars, and steel strips to dissipate energy at specific locations in the structure. The steel slit shear wall (SSSW) is a type of metallic damper that has been investigated due to its higher energy dissipation, better ductility, and ease of installation and repair.A steel plate shear wall is composed of a steel infill plate, surrounding boundary beams, and boundary columns. Additional horizontal or vertical stiffeners may be required for stiffened steel shear walls. Corrugated Steel slit Shear Walls (CSPSWs) have become more popular as an efficient lateral force-resisting device due to their improved hysteresis behavior, buckling stability, and higher out-of-plane stiffness compared to flat plates. Shear walls made of Steel Corrugated Plate (SCP) are commonly used in real-world engineering and have high elastic starting stiffness, stable hysteresis properties, and good seismic performance. The angle, height, and spacing of corrugations have a significant impact on the seismic performance of shear walls. Overall, Steel Plate Shear Wall systems and their variants are important components of seismic-resistant building design and construction.
2. LOADING PROTOCOL Table -1: Cyclic Loading Values Drift Radian
Drift Percentage(%)
Drift displacement(mm)
0.00375
0.3750
16.88
0.005
0.5000
22.5
0.0075
0.7500
33.75
0.01
1.0000
45
0.015
1.5000
67.5
0.02
2.0000
90
0.03
3.0000
135
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