Cyclic Behavior of U-Shaped Flexural Plates for Their Implementation in Multidirectional Energy Dissipation Devices
Jorge González, Fernando Barriuso, Ramiro Bazáez, Luis Pérez, Gabriel Lara-Rodríguez, Rodrigo Astroza, Pablo Heresi
TL;DR
This paper studies U-shaped flexural plates for their ability to dissipate seismic energy and proposes design methods for multidirectional damping systems.
Contribution
The study introduces predictive equations and a simplified design procedure for UFPs in multidirectional damping systems.
Findings
UFPs show reliable hysteretic behavior and mechanical integrity under cyclic loading.
Plate thickness, aspect ratio, and material yield strength significantly influence cyclic response.
Predictive equations for strength, stiffness, and fatigue life of UFPs were developed.
Abstract
U-shaped flexural plates (UFPs) are promising components for seismic energy dissipation due to their ability to undergo stable plastic deformation under cyclic loading. This study investigates their cyclic behavior through a combination of experimental testing and finite element simulations, focusing on their application in multidirectional damping systems. Key response parameters such as hysteretic behavior, energy dissipation, stiffness degradation, fatigue life, and the effect of loading direction were analyzed. The results demonstrate that UFPs provide reliable hysteretic behavior and maintain mechanical integrity over repeated cycles. The cyclic response was found to be strongly influenced by plate thickness, aspect ratio, and material yield strength. Based on these findings, this work proposes predictive equations for estimating strength, stiffness, fatigue life, and hysteretic…
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Taxonomy
TopicsSeismic Performance and Analysis · Structural Engineering and Vibration Analysis · Vibration Control and Rheological Fluids