Monitoring the collision of a cargo ship with the Vincent Thomas Bridge

Yun, Hae‐Bum; Nayeri, Reza D.; Tasbihgoo, F.; Wahbeh, Mazen; Caffrey, John; Wolfe, Raymond W.; Nigbor, Robert L.; Masri, Sami F.; Abdel‐Ghaffar, Ahmed M.; Sheng, Li-Hong

doi:10.1002/stc.213

Cited by 23 publications

(12 citation statements)

References 9 publications

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“…Mode 1 was not realized in NExT-ERA since the acceleration data contained weak vibration components in the lateral direction of the bridge under the ambient excitation without traffic loads. The modal parameters identified in this study agreed with those in previous studies [3,24,25]. Fig.…”

Section: Analysis Results Of the Experimental Datasupporting

confidence: 91%

“…The investigation continued for about 2 h having no traffic on the bridge, and then the vehicular traffic was reopened. A detailed description of the ship-bridge collision accident can be found in Yun et al [3].…”

Section: Measurements Of Bridge Responses In Ship-bridge Collision Acmentioning

confidence: 99%

“…The accelerometers were connected to a data acquisition system with the 24-bit analog-digital converter via sensor wires. A detailed description of the data acquisition system and the web-based bridge monitoring system can be also found in Yun et al [3].…”

Section: Measurements Of Bridge Responses In Ship-bridge Collision Acmentioning

confidence: 99%

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A Comparative Study of Mode Decomposition to Relate Next-ERA, PCA, and ICA Modes

Al-Rumaithi

Yun

Masri

2015

Model Validation and Uncertainty Quantification, Volume 3

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This paper discusses a comparative study to relate parametric and non-parametric mode decomposition algorithms for response-only data. Three popular mode decomposition algorithms are included in this study: the Eigensystem Realization Algorithm with the Natural Excitation Technique (NExT-ERA) for the parametric algorithm, as well as the Principal Component Analysis (PCA) and the Independent Component Analysis (ICA) for the non-parametric algorithms. A comprehensive parametric study is provided for (i) different response types, (ii) excitation types, (iii) system damping, and (iv) sensor spatial resolution to compare the mode shapes and modal coordinates of using a 10-DOF building model. The mode decomposition results are also compared using a unique dynamic response data collected in a ship-bridge collision accident for ambient excitation with traffic loading, ambient excitation without traffic loading, and impulse excitation.

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Section: Analysis Results Of the Experimental Datasupporting

confidence: 91%

Section: Measurements Of Bridge Responses In Ship-bridge Collision Acmentioning

confidence: 99%

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A Comparative Study of Mode Decomposition to Relate Next-ERA, PCA, and ICA Modes

Al-Rumaithi

Yun

Masri

2015

Model Validation and Uncertainty Quantification, Volume 3

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“…SHM can serve as an effective tool to confirm the ship collision incident and evaluate the bridge condition after the collision incident. Yun et al used acceleration records to assess structural condition of the Vincent Thomas Bridge after ship collision …”

Section: Case 1: Ship Collision Incident On a Suspension Bridgementioning

confidence: 99%

Utilization of structural health monitoring in long-span bridges: Case studies

Sun

Zou

Zhang

2017

Struct. Control Health Monit.

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Summary Structural health monitoring (SHM) of bridges has gained rapid development in the past few years. This paper describes application of SHM on long‐span bridges in China, with the aim to illustrate its practical value. A short review of its development and practice is firstly introduced. Three case studies are subsequently presented on utilization of SHM data in engineering practice. In the first case study, a ship collision incident is analyzed using SHM data. An alarm is sent and confirmed when the collision occurred, and mode parameters are identified with GPS measurements to evaluate the bridge condition. In the second case study, damage of expansion joints in a suspension bridge is assessed with girder end displacement measurements. Malfunction of viscous damper is found to correlate with cumulative displacement. The results show that cumulative displacement can be used for condition assessment of expansion joints. In the third case study, the performance of tuned mass dampers is evaluated with wind and vibration measurements before and after tuned mass damper installation. Through explanation of these case studies, the paper illustrates how to distill useful insights from SHM data, which could be instructive for further research in this field.

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“…Dynamic monitoring is relatively common in seismic zones with strong motion programs, although their potential for post-earthquake trauma seems to be underdeveloped, with very little is reported on the use of such instrumentation for post-trauma assessment. Two examples are use of a strong motion monitoring system to check effects of ship impact on Vincent Thomas Bridge (Yun at al., 2008) and an attempt to use ambient vibration survey to assess possible earthquake damage on a 7-storey Los Angeles building (Ivanovic et al, 2000). While it is hard to find published accounts of successful damage evaluation, two research exercises based on major construction events show the potential:…”

Section: Resilience In Bridges Structural Identification and Decisiomentioning

confidence: 99%

Improving Resilience of Infrastructure: The Case of Bridges

Aktan

2013

Structures Congress 2013

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Three well known examples of I-35W bridge failure, London Hammersmith Flyover closure and the UK M1 motorway under-bridge fire highlight the need for a reliable decision support methodology to enable better informed decisions on timely intervention and/or resilient recovery from a damaging event. It seems that quite apart from extreme man-made or natural hazards, our transportation infrastructure is not resilient under man made or natural loads, and we need to leverage technology to better understand and respond to societal risks due to a lack of resiliency. The challenge to improve infrastructure resilience has led to major infrastructure research initiatives that are relevant to the case of bridges. FHWA created the Long Term Bridge Performance Program, while in the UK, EPSRC recently promoted the two themes of resilient infrastructure and monitoring and field investigation of existing infrastructure.The paper will describe these initiatives and how they aim to improve the resilience of bridges, which are key components in our transport infrastructure. It will also suggest some specific activities for developing closer interactions between a wide range of academic and industry stakeholders leading to development effective decision support methodologies.

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Monitoring the collision of a cargo ship with the Vincent Thomas Bridge

Cited by 23 publications

References 9 publications

A Comparative Study of Mode Decomposition to Relate Next-ERA, PCA, and ICA Modes

A Comparative Study of Mode Decomposition to Relate Next-ERA, PCA, and ICA Modes

Utilization of structural health monitoring in long-span bridges: Case studies

Improving Resilience of Infrastructure: The Case of Bridges

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