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Cogwheel load: a new forced vibration test for bridges?
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SYSNO ASEP 0547320 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Cogwheel load: a new forced vibration test for bridges? Author(s) Bayer, Jan (UTAM-F) RID, SAI, ORCID
Urushadze, Shota (UTAM-F) RID, ORCID, SAINumber of authors 2 Source Title Journal of Civil Structural Health Monitoring. - : Springer - ISSN 2190-5452
Roč. 12, č. 1 (2022), s. 71-80Number of pages 10 s. Publication form Print - P Language eng - English Country DE - Germany Keywords bridge testing ; damage detection ; impulse loading ; vibration analysis ; health monitoring OECD category Civil engineering R&D Projects GC21-32122J GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UTAM-F - RVO:68378297 UT WOS 000706936900001 EID SCOPUS 85117045410 DOI 10.1007/s13349-021-00527-3 Annotation A moving impulse load generated by a rolling heavy polygonal wheel with a constant velocity, called here the cogwheel (CW), could be used as a testing excitation for bridges. This type of dynamic load, already proposed in an earlier article, acts along the entire driving path, its intensity is adjustable, and it can be very efficient in the case of resonance. It is a combination of static and dynamic loading tests, which requires only one or a few transducers mounted on the bridge, and traffic interruption of only a few minutes. The dynamic response contains higher harmonic components, and the moving mass alters the dynamic properties continuously during the passage, which should be considered while assessing the condition of the tested structure. The high capability of indication of frequency changes is explained and demonstrated in a new scaled laboratory test. Suggestions for damage localisation are also made. It is foreseen for testing of short- and medium-sized bridges on the occasion of commissioning and periodical checks after further research. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2023 Electronic address https://doi.org/10.1007/s13349-021-00527-3
Number of the records: 1