Hysteretic Characterization Of Slit-type Steel
Plates Subjected To Shear Deformations
Author(s)
A. Benavent-Climent
Abstract
The new technologies for seismic protection of buildings and bridges, in
particular energy dissipation, are receiving much attention in the field of
earthquake engineering. One of the energy dissipating devices (EDDs) that has
been used in real buildings in the past is the steel plate with slits subjected to
shear deformations. The purpose of this research is to characterize the hysteretic
behavior of this type of device and to predict its failure under arbitrary cyclic
loadings. To this end, several steel plates with slits were subjected to
pseudo-static forced cyclic deformations until they failed. Parameters such as the
type of steel, the geometry of the slits and the history of the cyclic loading were
considered. The load-displacement curve obtained in each test was decomposed
into the \“skeleton part” and the \“Bauschinger part”. It was found that both parts
exhibit very stable characteristics, which can be represented by a trilinear and a
bilinear curve, respectively. As a result a new hysteretic model that predicts the
load-displacement relationship and the failure of this type of EDDs under
arbitrary cyclic loading is proposed. The model is validated through dynamic
full-scale real-time shaking table tests and can be easily implemented in a
computed platform to carry out detailed inelastic dynamic response analyses.
Keywords: steel plate with slits, hysteretic behavior, energy dissipating device,
skeleton part, Bauschinger part, inelastic response analysis.
1 Introduction
In the last few decades, considerable attention has been paid to research and
development of energy dissipation devices (EDDs), particularly for controlling
the wind and seismic response of buildings and bridges. An EDD is a special
passive mechanism designed for absorbing energy from a vibration structural
Keywords
steel plate with slits, hysteretic behavior, energy dissipating device,
skeleton part, Bauschinger part, inelastic response analysis.
Related Book
Other papers in this volume
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