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Full-Scale Dynamic Testing of a Railway Bridge Using a Hydraulic Exciter
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0002-8926-2140
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0002-7927-7402
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0002-2908-4848
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0003-2104-382X
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2018 (English)In: EXPERIMENTAL VIBRATION ANALYSIS FOR CIVIL STRUCTURES: TESTING, SENSING, MONITORING, AND CONTROL / [ed] Conte, JP Astroza, R Benzoni, G Feltrin, G Loh, KJ Moaveni, B, SPRINGER INTERNATIONAL PUBLISHING AG , 2018, p. 354-363Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents a full-scale dynamic testing on a simply supported railway bridge with integrated end-shields, by using a hydraulic exciter. Experimental frequency response functions are determined based on load controlled frequency sweeps. Apart from accurate estimates of natural frequencies, damping and mode shapes, the experimental testing also gives valuable information about the dynamic characteristics at resonance and amplitude dependent nonlinearities. Numerical models are used to simulate the dynamic response from passing trains which is compared to experimental testing of similar train passages. The results show that the bridge deck is partially constrained due to the interaction between the end-shields and the wing walls with the surrounding soil. Measurements at the supports also show that the flexibility of the foundation needs to be accounted for. An updated numerical model is able to accurately predict the response from passing trains. The response is lower than that predicted from the initial simulations and the bridge will fulfil the design requirements regarding vertical deck acceleration.

Place, publisher, year, edition, pages
SPRINGER INTERNATIONAL PUBLISHING AG , 2018. p. 354-363
Series
Lecture Notes in Civil Engineering, ISSN 2366-2557 ; 5
Keywords [en]
Railway bridge, Dynamics, Full-scale test, Hydraulic exciter, Frequency response function
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:kth:diva-242273DOI: 10.1007/978-3-319-67443-8_30ISI: 000455235800030Scopus ID: 2-s2.0-85060189447ISBN: 978-3-319-67443-8 (print)ISBN: 978-3-319-67442-1 (print)OAI: oai:DiVA.org:kth-242273DiVA, id: diva2:1284856
Conference
International Conference on Experimental Vibration Analysis for Civil Engineering Structures (EVACES), JUL 12-14, 2017, Univ California San Diego, San Diego, CA
Note

QC 20190201

Available from: 2019-02-01 Created: 2019-02-01 Last updated: 2019-02-01Bibliographically approved

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Andersson, AndreasLind Östlund, JohanMahir, Ülker-KaustellBattini, Jean-MarcKaroumi, Raid

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