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Risk-based target reliability indices for quay walls. / Roubos, Alfred A.; Steenbergen, Raphael D.J.M.; Schweckendiek, Timo; Jonkman, Sebastiaan N.

In: Structural Safety, Vol. 75, 01.11.2018, p. 89-109.

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Roubos, Alfred A. ; Steenbergen, Raphael D.J.M. ; Schweckendiek, Timo ; Jonkman, Sebastiaan N. / Risk-based target reliability indices for quay walls. In: Structural Safety. 2018 ; Vol. 75. pp. 89-109.

BibTeX

@article{b14e9b17e5ee4a07a386f3091ff81815,
title = "Risk-based target reliability indices for quay walls",
abstract = "Design codes and standards rely on generalised target reliability indices. It is unclear, however, whether these indices are applicable to the specific risk-profile of marine structures. In this study, target reliability indices for quay walls were derived from various risk acceptance criteria, such as economic optimisation, individual risk (IR), societal risk (SR), the life quality index (LQI) and the social and environmental repercussion index (SERI). Important stochastic design variables in quay wall design, such as retaining height, soil strength and material properties, are largely time-independent, whereas other design variables are time-dependent. The extent to which a reliability problem is time variant affects the present value of future failure costs and the associated reliability optimum. A method was therefore developed to determine the influence of time-independent variables on the development of failure probability over time. This method can also be used to evaluate target reliability indices of other civil and geotechnical structures. The target reliability indices obtained for quay walls depend on failure consequences and marginal costs of safety investments. The results were used to elaborate the reliability framework of ISO 2394, and associated reliability levels are proposed for various consequence classes. The insights acquired were used to evaluate the acceptable probability of failure for different types of quay walls.",
keywords = "Acceptable risk, Economic optimisation, Quay walls, Reliability differentiation, Target reliability index, Eurocode 0",
author = "Roubos, {Alfred A.} and Steenbergen, {Raphael D.J.M.} and Timo Schweckendiek and Jonkman, {Sebastiaan N.}",
note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.",
year = "2018",
month = nov,
day = "1",
doi = "10.1016/j.strusafe.2018.06.005",
language = "English",
volume = "75",
pages = "89--109",
journal = "Structural Safety",
issn = "0167-4730",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Risk-based target reliability indices for quay walls

AU - Roubos, Alfred A.

AU - Steenbergen, Raphael D.J.M.

AU - Schweckendiek, Timo

AU - Jonkman, Sebastiaan N.

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2018/11/1

Y1 - 2018/11/1

N2 - Design codes and standards rely on generalised target reliability indices. It is unclear, however, whether these indices are applicable to the specific risk-profile of marine structures. In this study, target reliability indices for quay walls were derived from various risk acceptance criteria, such as economic optimisation, individual risk (IR), societal risk (SR), the life quality index (LQI) and the social and environmental repercussion index (SERI). Important stochastic design variables in quay wall design, such as retaining height, soil strength and material properties, are largely time-independent, whereas other design variables are time-dependent. The extent to which a reliability problem is time variant affects the present value of future failure costs and the associated reliability optimum. A method was therefore developed to determine the influence of time-independent variables on the development of failure probability over time. This method can also be used to evaluate target reliability indices of other civil and geotechnical structures. The target reliability indices obtained for quay walls depend on failure consequences and marginal costs of safety investments. The results were used to elaborate the reliability framework of ISO 2394, and associated reliability levels are proposed for various consequence classes. The insights acquired were used to evaluate the acceptable probability of failure for different types of quay walls.

AB - Design codes and standards rely on generalised target reliability indices. It is unclear, however, whether these indices are applicable to the specific risk-profile of marine structures. In this study, target reliability indices for quay walls were derived from various risk acceptance criteria, such as economic optimisation, individual risk (IR), societal risk (SR), the life quality index (LQI) and the social and environmental repercussion index (SERI). Important stochastic design variables in quay wall design, such as retaining height, soil strength and material properties, are largely time-independent, whereas other design variables are time-dependent. The extent to which a reliability problem is time variant affects the present value of future failure costs and the associated reliability optimum. A method was therefore developed to determine the influence of time-independent variables on the development of failure probability over time. This method can also be used to evaluate target reliability indices of other civil and geotechnical structures. The target reliability indices obtained for quay walls depend on failure consequences and marginal costs of safety investments. The results were used to elaborate the reliability framework of ISO 2394, and associated reliability levels are proposed for various consequence classes. The insights acquired were used to evaluate the acceptable probability of failure for different types of quay walls.

KW - Acceptable risk

KW - Economic optimisation

KW - Quay walls

KW - Reliability differentiation

KW - Target reliability index

KW - Eurocode 0

UR - http://www.scopus.com/inward/record.url?scp=85049061213&partnerID=8YFLogxK

UR - http://resolver.tudelft.nl/uuid:b14e9b17-e5ee-4a07-a386-f3091ff81815

U2 - 10.1016/j.strusafe.2018.06.005

DO - 10.1016/j.strusafe.2018.06.005

M3 - Article

AN - SCOPUS:85049061213

VL - 75

SP - 89

EP - 109

JO - Structural Safety

JF - Structural Safety

SN - 0167-4730

ER -

ID: 45675210