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Pilot testing of a hydraulic bridge exciter
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges. The Swedish Transport Administration (Trafikverket), Sweden.ORCID iD: 0000-0002-8926-2140
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges. Tyréns AB, Sweden.
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.
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2015 (English)In: EVACES'15, 6th International Conference on Experimental Vibration Analysis For Civil Engineering Structures / [ed] Glauco Feltrin, Zurich: EDP Sciences, 2015, Vol. 24, 02001- p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper describes the development of a hydraulic bridge exciter and its first pilot testing on a full scale railway bridge in service. The exciter is based on a hydraulic load cylinder with a capacity of 50 kN and is intended for controlled dynamic loading up to at least 50 Hz. The load is applied from underneath the bridge, enabling testing while the railway line is in service. The system is shown to produce constant load amplitude even at resonance. The exciter is used to experimentally determine frequency response functions at all sensor locations, which serve as valuable input for model updating and verification. An FE-model of the case study bridge has been developed that is in good agreement with the experimental results.

Place, publisher, year, edition, pages
Zurich: EDP Sciences, 2015. Vol. 24, 02001- p.
Keyword [en]
Dynamic loads, Frequency response, Load testing, Railroad transportation, Railroads, Structures (built objects), Vibration analysis, Constant loads, Controlled dynamics, Frequency response functions, Hydraulic bridges, Hydraulic load, Model updating, Railway bridges, Sensor location
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:kth:diva-175888DOI: 10.1051/matecconf/20152402001ISI: 000372315100006Scopus ID: 2-s2.0-84957870606OAI: oai:DiVA.org:kth-175888DiVA: diva2:864139
Conference
6th International Conference on Experimental Vibration Analysis for Civil Engineering Structures, EVACES 2015, Dubendorf, Zurich, Switzerland, 19 October 2015 through 21 October 2015
Note

QC 20151217

Available from: 2015-10-26 Created: 2015-10-26 Last updated: 2016-04-21Bibliographically approved

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Andersson, AndreasKaroumi, Raid

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Andersson, AndreasÜlker-Kaustell, MahirBorg, RichardDymén, OlivierKaroumi, Raid
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