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A review of recent development in structural health monitoring of bridges
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges.ORCID iD: 0000-0002-5447-2068
(English)Manuscript (preprint) (Other academic)
Abstract [en]

Bridges are expensive to manage as they require thorough inspection and maintenance operations. Meanwhile the development of Structural Health Monitoring (SHM) techniques in recent years have demonstrated the potential for this to become a tool that bridge managers can use to optimise inspection and maintenance procedures. This paper reviews recent development in SHM and damage detection techniques. The paper focuses on recent algorithms developed or adapted for damage detection and structural health monitoring in bridge structures, although some of the algorithms presented might be of a more general nature or developed for other kind of structures. The algorithms presented are classified according to the method they use for damage detection and location into Acoustic Emission, Modal Analysis and Statistical pattern recognition based.

 

Place, publisher, year, edition, pages
, 16 p.
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:kth:diva-48686OAI: oai:DiVA.org:kth-48686DiVA: diva2:458315
Available from: 2011-11-22 Created: 2011-11-22 Last updated: 2011-11-22Bibliographically approved
In thesis
1. Study and Application of Modern Bridge Monitoring Techniques
Open this publication in new window or tab >>Study and Application of Modern Bridge Monitoring Techniques
2011 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The field of monitoring is one of rapid development. Advances in sensor technologies, in data communication paradigms and data processing algorithms all influence the possibilities of Structural Health Monitoring, damage detection, traffic monitoring and other implementations of monitoring systems. Bridges are a very critical part of a country’s infrastructure, they are expensive to build and maintain, and many uncertainties surround important factors determining the serviceability and deterioration of bridges. As such, bridges are good candidates for monitoring. Monitoring can extend the service life and avoid or postpone replacement, repair or strengthening work. Many bridges constitute a bottleneck in the transport network they serve with few or no alternative routes. The amount of resources saved, both to the owner and the users, by reducing the amount of non-operational time can easily justify the extra investment in monitoring.

This thesis consists of an extended summary and three appended papers. The thesis presents advances in sensor technology, damage identification algorithms and Bridge Weigh-In-Motion techniques. Two case studies are carried out. In the first a bridge and traffic monitoring system is implemented in a highway suspension bridge to study the cause of unexpected wear in the bridge bearings. In the second a fully operational Bridge Weigh-In-Motion system is developed and deployed in a steel railway bridge. The gathered data was studied to obtain a characterization of the site specific traffic.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2011. viii, 35 p.
Series
Trita-BKN. Bulletin, ISSN 1103-4270 ; 110
Keyword
Structural Health Monitoring, Traffic Monitoring, Bridge Monitoring, Bridge Weigh-In-Motion, BWIM, Damage Detection, Suspension Bridge Bearings, Axle Loads, Dynamics
National Category
Infrastructure Engineering
Identifiers
urn:nbn:se:kth:diva-48583 (URN)
Presentation
2011-12-12, 13:00
Opponent
Supervisors
Note
QC 20111122Available from: 2011-11-22 Created: 2011-11-21 Last updated: 2011-11-22Bibliographically approved

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