Vibration testing and damping identification of a long-span suspended footbridge

Doyun Hwang; Sunjoong Kim; Ho Kyung Kim

Vibration testing and damping identification of a long-span suspended footbridge

Doyun Hwang, Sunjoong Kim, Ho Kyung Kim

Department of Civil Engineering

Seoul National University

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

Abstract

This study focuses on operational modal analysis (OMA)-based damping estimation of a long-span suspended footbridge for a serviceability assesment. Data acquired from vibration tests performed on the Majang Lake Suspended Bridge, the longest suspended footbridge in Korea, were used for the analysis. Using frequency domain decomposition (FDD) and natural excitation technique (NExT) with eigensystem realization algorithm (ERA), higher modes and their damping ratios were investigated.

Original language	English
Pages	38-40
Number of pages	3
State	Published - 2018
Event	1st IABSE Young Engineers Colloquium in East Asia 2018 - Shanghai, China Duration: 24 Oct 2018 → 25 Oct 2018

Conference

Conference	1st IABSE Young Engineers Colloquium in East Asia 2018
Country/Territory	China
City	Shanghai
Period	24/10/18 → 25/10/18

Keywords

Damping
Monitoring
Pedestrian bridges
Serviceability
System Identification

Cite this

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title = "Vibration testing and damping identification of a long-span suspended footbridge",

abstract = "This study focuses on operational modal analysis (OMA)-based damping estimation of a long-span suspended footbridge for a serviceability assesment. Data acquired from vibration tests performed on the Majang Lake Suspended Bridge, the longest suspended footbridge in Korea, were used for the analysis. Using frequency domain decomposition (FDD) and natural excitation technique (NExT) with eigensystem realization algorithm (ERA), higher modes and their damping ratios were investigated.",

keywords = "Damping, Monitoring, Pedestrian bridges, Serviceability, System Identification",

author = "Doyun Hwang and Sunjoong Kim and Kim, {Ho Kyung}",

note = "Publisher Copyright: {\textcopyright} IABSE Young Engineers Colloquium in East Asia - Proceedings. All rights reserved.; 1st IABSE Young Engineers Colloquium in East Asia 2018 ; Conference date: 24-10-2018 Through 25-10-2018",

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AU - Kim, Sunjoong

AU - Kim, Ho Kyung

PY - 2018

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N2 - This study focuses on operational modal analysis (OMA)-based damping estimation of a long-span suspended footbridge for a serviceability assesment. Data acquired from vibration tests performed on the Majang Lake Suspended Bridge, the longest suspended footbridge in Korea, were used for the analysis. Using frequency domain decomposition (FDD) and natural excitation technique (NExT) with eigensystem realization algorithm (ERA), higher modes and their damping ratios were investigated.

AB - This study focuses on operational modal analysis (OMA)-based damping estimation of a long-span suspended footbridge for a serviceability assesment. Data acquired from vibration tests performed on the Majang Lake Suspended Bridge, the longest suspended footbridge in Korea, were used for the analysis. Using frequency domain decomposition (FDD) and natural excitation technique (NExT) with eigensystem realization algorithm (ERA), higher modes and their damping ratios were investigated.

KW - Damping

KW - Monitoring

KW - Pedestrian bridges

KW - Serviceability

KW - System Identification

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M3 - Paper

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T2 - 1st IABSE Young Engineers Colloquium in East Asia 2018

Y2 - 24 October 2018 through 25 October 2018

ER -

Vibration testing and damping identification of a long-span suspended footbridge

Abstract

Conference

Keywords

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