Finite-Element Validation of U-Shaped Flexural Plates Integrated into a Novel Brace Dissipator
Publication: Journal of Structural Engineering
Volume 150, Issue 9
Abstract
Metallic dissipators have gained considerable attention in the seismic structural design industry in recent years because of their ability to provide stable hysteresis behavior and excellent energy dissipation capacity. Among these dissipators, the U-shaped flexural plate (UFP) has gained wide acceptance. This research primarily focuses on the numerical modeling of UFP and its innovative application, known as the multiple UFP dissipater (MUD). The research methodology involves conducting finite-element analysis of both the single UFP model and the MUD model under monotonic and cyclic loading conditions using Abaqus. The numerical models were validated against the experimental results. The findings of this study provide valuable insights into the local deformation behavior of UFP during rolling motion, including the variations in the yield area and stress distribution at critical cross sections. Additionally, a parametric study was performed to investigate the influence of various geometric parameters, such as the section modulus and the slenderness ratio of the flange of UFP. The numerical model of MUD enables a comprehensive understanding of how different components within MUD function as an integrated unit. Furthermore, the relationship between the overall stiffness of MUD and the stiffness of each individual component within the system was discussed.
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Data Availability Statement
Some or all data, models, or codes that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The authors express their sincere gratitude to Dr. Tadesse Gemeda Wakjira for his valuable assistance and contributions to this paper.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 150 • Issue 9 • September 2024
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Sep 3, 2023
Accepted: Mar 11, 2024
Published online: Jul 1, 2024
Published in print: Sep 1, 2024
Discussion open until: Dec 1, 2024
ASCE Technical Topics:
- Engineering fundamentals
- Finite element method
- Flexural strength
- Geomechanics
- Geotechnical engineering
- Material mechanics
- Material properties
- Materials engineering
- Methodology (by type)
- Models (by type)
- Mud
- Numerical methods
- Numerical models
- Plates
- Research methods (by type)
- Soil mechanics
- Soils (by type)
- Strength of materials
- Structural behavior
- Structural engineering
- Structural members
- Structural systems
- Validation
Authors
Metrics & Citations
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