Uniform risk spectra for rocking structures
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Date
2022-09
Publication Type
Journal Article
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yes
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Abstract
This paper presents uniform risk spectra for zero stiffness bilinear elastic (ZSBE) systems. The ZSBE oscillator is a bilinear elastic system with zero post-"yield" stiffness that satisfactorily predicts the response of different systems with negative lateral stiffness (e.g., free-standing or restrained rocking blocks). It can be described by a single parameter; thus, it is simpler to produce its spectrum. Using the ZSBE proxy, this paper provides the uniform risk spectra for sites in six locations in Europe. The spectra are constructed using two distinct intensity measures (IMs): peak ground velocity (PGV) and peak ground acceleration (PGA). The efficiency of both IMs at different ranges of displacement demands is discussed and analytical approximations of the spectra are proposed.
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published
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Journal / series
Volume
51 (11)
Pages / Article No.
2610 - 2626
Publisher
Wiley
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Edition / version
Methods
Software
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Date collected
Date created
Subject
negative stiffness; rocking; rocking spectra; uniform risk spectra
Organisational unit
09663 - Vassiliou, Michalis (ehemalig) / Vassiliou, Michalis (former)