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Continous monitoring of bearing forces and displacements in the High Coast Bridge
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0002-5447-2068
2014 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The High Coast Bridge is a four lane, 1867 m long suspension bridge located in middle Sweden. The bridge, constructed between 1993 and 1997, comprises a multiple cell steel box girder with a main span of 1210 m. The girder is fully suspended along its entire length without any bearings at the pylons. Because of the unexpected wear in the sliding bearings at its ends a monitoring program was initiated. The program included the dynamic monitoring of the longitudinal displacement of the girder and bearing forces at both bearings in the northern abutment. It also included the monitoring of hanger forces at the hangers closest to the northern end and the monitoring of road traffic entering and leaving the bridge by means of a traffic camera located at that same end. In this study the long term behavior of the bridge, as observed by the monitoring system, is studied and presented including the effects of seasonal temperature changes. Furthermore the capabilities of the installed monitoring system for measuring traffic loads, as a Bridge Weigh in Motion system, in conjunction with the camera are explored and the result of the traffic monitoring is presented. The monitoring system was found capable of estimating the total loads of trucks crossing the bridge, as well as the total distance travelled by the bearing, both important parameters for estimating bearing wear. Furthermore, with the aid of the camera to discern between single and multiple truck events, overloaded trucks could be identified by the system.

Place, publisher, year, edition, pages
BOCA RATON: CRC PRESS-TAYLOR & FRANCIS GROUP , 2014. 566-572 p.
Series
BRIDGE MAINTENANCE, SAFETY, MANAGEMENT AND LIFE EXTENSION
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-153289ISI: 000341306400072Scopus ID: 2-s2.0-84906670435ISBN: 978-1-315-76069-8 (print)ISBN: 978-1-138-00103-9 (print)OAI: oai:DiVA.org:kth-153289DiVA: diva2:752420
Conference
7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014; Shanghai; China; 7 July 2014 through 11 July 2014
Note

QC 20141003

Available from: 2014-10-03 Created: 2014-10-03 Last updated: 2014-10-03Bibliographically approved

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  • apa
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Output format
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