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Cogwheel load: a new forced vibration test for bridges?
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SYSNO ASEP 0547320 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Cogwheel load: a new forced vibration test for bridges? Tvůrce(i) Bayer, Jan (UTAM-F) RID, SAI, ORCID
Urushadze, Shota (UTAM-F) RID, ORCID, SAICelkový počet autorů 2 Zdroj.dok. Journal of Civil Structural Health Monitoring. - : Springer - ISSN 2190-5452
Roč. 12, č. 1 (2022), s. 71-80Poč.str. 10 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova bridge testing ; damage detection ; impulse loading ; vibration analysis ; health monitoring Obor OECD Civil engineering CEP GC21-32122J GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora UTAM-F - RVO:68378297 UT WOS 000706936900001 EID SCOPUS 85117045410 DOI 10.1007/s13349-021-00527-3 Anotace 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. Pracoviště Ústav teoretické a aplikované mechaniky Kontakt Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Rok sběru 2023 Elektronická adresa https://doi.org/10.1007/s13349-021-00527-3
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