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Monitoring the behaviour of the Traneberg Bridge during retrofitting
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering.
2006 (English)In: Structural Health Monitoring and Intelligent Infrastructure, Vols 1 and 2 / [ed] Ou, JP; Li, H; Duan, ZD, 2006, 1631-1635 p.Conference paper (Refereed)
Abstract [en]

Monitoring structures under retrofitting and strengthening is an ideal way to verify and control their behaviour and also to confirm and calibrate the calculation models. The Traneberg Bridge is a combined road and suburban railway bridge. The retrofitting and strengthening of the bridge started in 1999 in order to accommodate the increasing traffic and the need for heavy vehicles. It is a concrete bridge where only the deck support girders are made of steel. The main span is 191 meters and at the time of its completion in 1934 was the longest concrete arch bridge in the world. The vertical clearance is 26 meters. The old concrete arches seemed to be in good condition and the concrete samples taken confirmed high values of Young's modulus. It was decided that the old arch would be kept but the pillars and the deck were to be reconstructed. Monitoring the old arch during the retrofitting was significant in order to control the behaviour of the arch during demolition and reconstruction. The monitoring system consisted of seven fibre optic SOFO sensors and five thermocouples. The monitoring started in November 2003 and was completed in February 2005. The bridge was checked on a weekly and monthly basis and the modelling of the construction steps was compared to real values from measurements. This paper presents the results during reconstruction and highlights the benefits of the monitoring project when reconstructing the old structure.

Place, publisher, year, edition, pages
2006. 1631-1635 p.
, Proceedings and Monographs in Engineering, Water and Earth Sciences
National Category
Civil Engineering
URN: urn:nbn:se:kth:diva-42247ISI: 000244174300219ScopusID: 2-s2.0-84890686634ISBN: 978-0-415-39650-9OAI: diva2:446367
2nd International Conference on Structural Health Monitoring of Intelligent Infrastructure Location: Shenzhen,CHINA, Date: NOV 16-18, 2005
QC 20111007Available from: 2011-10-07 Created: 2011-10-06 Last updated: 2011-10-07Bibliographically approved

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