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Abstract:
In recent years, extensive attention has been paid to shear behavior of RC shear walls subjected to coupled variable axial tension-compression forces. In order to investigate the shear behavior of RC walls under variable axial tension-compression forces, an experimental test was conducted on three low-aspect-ratio RC walls. The test variables are fluctuating ranges and loading paths of the variable axial forces. Test results indicated: The final failure of RC walls subjected to variable axial forces was controlled by the shear-compression failure in compressive-shear direction and the ultimate drift ratio in compressive-shear direction ranging from 1.2% to 1.4%. The fluctuating ranges of variable axial forces changed the tension-shear strength and the compression-shear strength, while the loading paths only affected the tension-shear strength. The hysteretic curves of RC walls subjected to variable axial tension-compression forces were asymmetric. The fluctuating range of axial forces had limited influence on the shape of hysteretic curves, while the loading patterns significantly changed the shape of these hysteretic curves. The fluctuating ranges of variable axial forces enlarged the difference between the tension-shear and the compression-shear stiffness, probably resulting in more shear force being transferred from the tension wall to the compression wall in coupled wall system. A numerical model was developed using OpenSees, which can accurately simulate the shear behavior of RC wall under variable axial tension-compression. © 2024 Tsinghua University. All rights reserved.
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Engineering Mechanics
ISSN: 1000-4750
Year: 2024
Volume: 41
Page: 228-237
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 2
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