Počet záznamů: 1
Experimental analysis of frequency tuning influence on the response stability of bridge girders under wind action
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SYSNO ASEP 0361436 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Experimental analysis of frequency tuning influence on the response stability of bridge girders under wind action Tvůrce(i) Král, Radomil (UTAM-F) RID, SAI
Pospíšil, Stanislav (UTAM-F) RID, SAI, ORCID
Náprstek, Jiří (UTAM-F) RID, ORCID, SAICelkový počet autorů 3 Zdroj.dok. Proceedings of 13th International Conference on Wind Engineering. - Amsterdam : Multi-Science Publishing Co Ltd, 2011 / Geurts Chris - ISBN 978-1-907132-33-9 Rozsah stran s. 1-8 Poč.str. 8 s. Akce International conference of wind engineering /13./ Datum konání 10.07.2011-15.07.2011 Místo konání Amsterdam Země NL - Nizozemsko Typ akce WRD Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova wind tunnel analysis ; sectional bridge girders ; stability Vědní obor RIV JM - Inženýrské stavitelství CEP GA103/09/0094 GA ČR - Grantová agentura ČR IAA200710902 GA AV ČR - Akademie věd CEZ AV0Z20710524 - UTAM-F (2005-2011) Anotace In this article, a wind tunnel analysis of a double-degree-of-freedom (DDOF) system represented by sectional bridge girders is carried out. The analysis is focused on the influence of the natural frequencies ratio on the initiation of unstable vibration. The article also discusses experimentally ascertained response regimes, with an emphasis on their stability character. The assessment of the response is based on the hysteresis loops and separation curves determining the stability boundaries. The influence of initial disturbance on the stability is examined. Two types of girder were investigated: (i) rectangular cross-section with the aspect ratio 1:5, and, (ii) bridge-like girder with analogous principal dimensions. For both types of decks, the limits of the stability are significantly affected by initial disturbance. Pracoviště Ústav teoretické a aplikované mechaniky Kontakt Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Rok sběru 2012
Počet záznamů: 1