Probabilistic-Based Assessment of Liquefaction-Induced Damage with Analytical Fragility Curves

Soil liquefaction may cause severe damages to structures mainly in terms of lateral spread and settlements, as documented during historical earthquakes. Liquefaction-potential (LP) estimation has become an important issue in seismic assessment, and this paper aims to propose a new methodology based...

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Main Author: Davide Forcellini
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Geosciences
Subjects:
Online Access:https://www.mdpi.com/2076-3263/10/8/315
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author Davide Forcellini
author_facet Davide Forcellini
author_sort Davide Forcellini
collection DOAJ
description Soil liquefaction may cause severe damages to structures mainly in terms of lateral spread and settlements, as documented during historical earthquakes. Liquefaction-potential (LP) estimation has become an important issue in seismic assessment, and this paper aims to propose a new methodology based on fragility curves. LP curves were developed and applied to two case studies performed with 3D numerical models applying Opensees. Nonlinear hysteretic materials and advanced plasticity models were used to reproduce the high nonlinear mechanisms of liquefaction, such as strong dilation tendency and cyclic shear behaviour. LP curves were applied to compare the results of the performed free field (FF) and soil–structure interaction (SSI) case studies.
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spelling doaj.art-1257d646470b46089058d7cd3c0dc9ba2023-11-20T10:15:29ZengMDPI AGGeosciences2076-32632020-08-0110831510.3390/geosciences10080315Probabilistic-Based Assessment of Liquefaction-Induced Damage with Analytical Fragility CurvesDavide Forcellini0Civil and Environmental Engineering, University of Auckland, 20 Symonds Street, Auckland 1010, New ZealandSoil liquefaction may cause severe damages to structures mainly in terms of lateral spread and settlements, as documented during historical earthquakes. Liquefaction-potential (LP) estimation has become an important issue in seismic assessment, and this paper aims to propose a new methodology based on fragility curves. LP curves were developed and applied to two case studies performed with 3D numerical models applying Opensees. Nonlinear hysteretic materials and advanced plasticity models were used to reproduce the high nonlinear mechanisms of liquefaction, such as strong dilation tendency and cyclic shear behaviour. LP curves were applied to compare the results of the performed free field (FF) and soil–structure interaction (SSI) case studies.https://www.mdpi.com/2076-3263/10/8/315liquefaction-potential (LP) curvesnew methodologyliquefaction risknumerical simulationsOpensees
spellingShingle Davide Forcellini
Probabilistic-Based Assessment of Liquefaction-Induced Damage with Analytical Fragility Curves
Geosciences
liquefaction-potential (LP) curves
new methodology
liquefaction risk
numerical simulations
Opensees
title Probabilistic-Based Assessment of Liquefaction-Induced Damage with Analytical Fragility Curves
title_full Probabilistic-Based Assessment of Liquefaction-Induced Damage with Analytical Fragility Curves
title_fullStr Probabilistic-Based Assessment of Liquefaction-Induced Damage with Analytical Fragility Curves
title_full_unstemmed Probabilistic-Based Assessment of Liquefaction-Induced Damage with Analytical Fragility Curves
title_short Probabilistic-Based Assessment of Liquefaction-Induced Damage with Analytical Fragility Curves
title_sort probabilistic based assessment of liquefaction induced damage with analytical fragility curves
topic liquefaction-potential (LP) curves
new methodology
liquefaction risk
numerical simulations
Opensees
url https://www.mdpi.com/2076-3263/10/8/315
work_keys_str_mv AT davideforcellini probabilisticbasedassessmentofliquefactioninduceddamagewithanalyticalfragilitycurves