The Assessment and reduction of seismic risk in cable structures

Alin Radu; Irina Lazar; Anastasios Sextos

The Assessment and reduction of seismic risk in cable structures

Alin Radu, Irina Lazar, Anastasios Sextos

Research output: Contribution to conference › Conference Paper › peer-review

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Abstract

Extreme earthquakes may produce significant financial damage and affect a large number of people, due to direct and indirect damage to structures and infrastructure. Transportation networks are essential parts of infrastructure, which can cause significant financial loss and downtime for large communities, as a result of extreme seismic events. An accurate risk assessment and high-performance risk reduction methods are essential tools for
preparedness and resilience in case of catastrophic events.

This study focuses on the assessment and reduction of the seismic risk of cable-structures, such as cable-stayed bridges, which could be indispensable but vulnerable components of critical transportation networks. Cables are slender structures with low inherent damping, exposed to a wide range of day-to-day and extreme excitation. The seismic risk assessment is achieved through estimating seismic fragility for cables, which is a widely-used measure for structural reliability. The seismic risk reduction is achieved by implementing vibration-suppression devices,
such as tuned-inerter-dampers (TID). Numerical examples are shown for realistic structures subjected to seismic loading.

Original language	English
Publication status	Published - 18 Jun 2018
Event	16th European Conference on Earthquake Engineering: Thessaloniki - 2018 - Thessaloniki, Greece Duration: 18 Jun 2018 → 21 Jun 2018 Conference number: 16 http://www.16ecee.org/

Conference

Conference	16th European Conference on Earthquake Engineering
Abbreviated title	16ECEE
Country	Greece
City	Thessaloniki
Period	18/06/18 → 21/06/18
Internet address	http://www.16ecee.org/

Keywords

risk assessment
vibration control
tuned-inerter damper
cable structures
earthquake ground motion

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Cite this

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title = "The Assessment and reduction of seismic risk in cable structures",

abstract = "Extreme earthquakes may produce significant financial damage and affect a large number of people, due to direct and indirect damage to structures and infrastructure. Transportation networks are essential parts of infrastructure, which can cause significant financial loss and downtime for large communities, as a result of extreme seismic events. An accurate risk assessment and high-performance risk reduction methods are essential tools forpreparedness and resilience in case of catastrophic events. This study focuses on the assessment and reduction of the seismic risk of cable-structures, such as cable-stayed bridges, which could be indispensable but vulnerable components of critical transportation networks. Cables are slender structures with low inherent damping, exposed to a wide range of day-to-day and extreme excitation. The seismic risk assessment is achieved through estimating seismic fragility for cables, which is a widely-used measure for structural reliability. The seismic risk reduction is achieved by implementing vibration-suppression devices,such as tuned-inerter-dampers (TID). Numerical examples are shown for realistic structures subjected to seismic loading.",

keywords = "risk assessment, vibration control, tuned-inerter damper, cable structures, earthquake ground motion",

author = "Alin Radu and Irina Lazar and Anastasios Sextos",

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language = "English",

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T1 - The Assessment and reduction of seismic risk in cable structures

AU - Radu, Alin

AU - Lazar, Irina

AU - Sextos, Anastasios

N1 - Conference code: 16

PY - 2018/6/18

Y1 - 2018/6/18

N2 - Extreme earthquakes may produce significant financial damage and affect a large number of people, due to direct and indirect damage to structures and infrastructure. Transportation networks are essential parts of infrastructure, which can cause significant financial loss and downtime for large communities, as a result of extreme seismic events. An accurate risk assessment and high-performance risk reduction methods are essential tools forpreparedness and resilience in case of catastrophic events. This study focuses on the assessment and reduction of the seismic risk of cable-structures, such as cable-stayed bridges, which could be indispensable but vulnerable components of critical transportation networks. Cables are slender structures with low inherent damping, exposed to a wide range of day-to-day and extreme excitation. The seismic risk assessment is achieved through estimating seismic fragility for cables, which is a widely-used measure for structural reliability. The seismic risk reduction is achieved by implementing vibration-suppression devices,such as tuned-inerter-dampers (TID). Numerical examples are shown for realistic structures subjected to seismic loading.

AB - Extreme earthquakes may produce significant financial damage and affect a large number of people, due to direct and indirect damage to structures and infrastructure. Transportation networks are essential parts of infrastructure, which can cause significant financial loss and downtime for large communities, as a result of extreme seismic events. An accurate risk assessment and high-performance risk reduction methods are essential tools forpreparedness and resilience in case of catastrophic events. This study focuses on the assessment and reduction of the seismic risk of cable-structures, such as cable-stayed bridges, which could be indispensable but vulnerable components of critical transportation networks. Cables are slender structures with low inherent damping, exposed to a wide range of day-to-day and extreme excitation. The seismic risk assessment is achieved through estimating seismic fragility for cables, which is a widely-used measure for structural reliability. The seismic risk reduction is achieved by implementing vibration-suppression devices,such as tuned-inerter-dampers (TID). Numerical examples are shown for realistic structures subjected to seismic loading.

KW - risk assessment

KW - vibration control

KW - tuned-inerter damper

KW - cable structures

KW - earthquake ground motion

M3 - Conference Paper

T2 - 16th European Conference on Earthquake Engineering

Y2 - 18 June 2018 through 21 June 2018

ER -