Počet záznamů: 1

Scanning the modal coupling of slender suspension footbridges by a virtual moving vehicle

SYSNO ASEP	0497391
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Scanning the modal coupling of slender suspension footbridges by a virtual moving vehicle
Tvůrce(i)	Yang, Y. B. (TW) Yau, J. D. (TW) Urushadze, Shota (UTAM-F)_{RID, ORCID, SAI}
Celkový počet autorů	3
Zdroj.dok.	Engineering Structures. - : Elsevier - ISSN 0141-0296 Roč. 180, February (2019), s. 574-585
Poč.str.	12 s.
Forma vydání	Tištěná - P
Jazyk dok.	eng - angličtina
Země vyd.	GB - Velká Británie
Klíč. slova	footbridge ; free vibration ; linearized deflection theory ; moving vehicle ; torsional-flexural coupling
Vědní obor RIV	JM - Inženýrské stavitelství
Obor OECD	Civil engineering
CEP	GC17-26353J GA ČR - Grantová agentura ČR
Institucionální podpora	UTAM-F - RVO:68378297
UT WOS	000456756600041
EID SCOPUS	85057500142
DOI	10.1016/j.engstruct.2018.08.096
Anotace	In this paper, the modal coupling mechanism is studied of a single-span footbridge consisting of a suspended beam (i.e., bridge deck), two suspension cables (via hangers) and two wind guys (via wind ties). To start, the governing equations for the slender suspended beam are derived based on the linearized deflection theory for classical suspension bridges, which is followed by two parts. First, the free vibration analysis is conducted to obtain the modal frequencies and modal shapes of the suspended beam by Galerkin’s method, from which the key parameters dominating the flexural-torsional coupled vibrations are identified, along with measures for stiffness enhancement. Then, a virtual eccentrically moving vehicle is first attempted to scan (i.e. extract) the vibration messages of the suspended beam from a perspective that allows us to physically interpret the dominant mode of the flexural-torsional coupling of the beam in an easy way. The objective of this study is twofold: first to offer a complete nonlinear vibration theory for the suspension footbridge, and second to physically interpret the complicated mechanism of coupling involved.
Pracoviště	Ústav teoretické a aplikované mechaniky
Kontakt	Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285
Rok sběru	2019
Elektronická adresa	https://doi.org/10.1016/j.engstruct.2018.08.096

Počet záznamů: 1