File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1142/S0219455422710018
- WOS: WOS:000810492300002
Supplementary
-
Citations:
- Web of Science: 0
- Appears in Collections:
Article: Shifted Resonance of Railway Bridges Under Trains Passing by Each Other
Title | Shifted Resonance of Railway Bridges Under Trains Passing by Each Other |
---|---|
Authors | |
Issue Date | 2022 |
Publisher | World Scientific. The Journal's web site is located at http://www.worldscinet.com/ijssd/ijssd.shtml |
Citation | International Journal of Structural Stability and Dynamics, 2022, v. 22 n. 7, p. 2271001 How to Cite? |
Abstract | Dynamic vehicle–bridge interaction (VBI) plays a crucial role in the train-induced vibrations of a railway bridge for its coupling effects may reduce the bridge response and down-shift the resonant speed. The commonly used nominal theoretical resonant speed (=fbD) of a typical railway bridge, however, is only related to the bridge frequency (fb) and car length (D), but it neglects the VBI effects of the moving trains. Such a shifted resonance phenomenon would become significant for a bridge under two trains passing by each other. This study develops a method using an equivalent modal mass to be added onto the bridge to account for the frequency shift due to the presence of multiple train cars for estimation of the shifted resonant speed. The numerical study demonstrates that the proposed method can predict the shifted resonant speed and explain the shifted-resonance phenomenon of railway bridges under train passages. |
Persistent Identifier | http://hdl.handle.net/10722/319579 |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lou, P | - |
dc.contributor.author | Yau, JD | - |
dc.contributor.author | Au, FTK | - |
dc.contributor.author | Urushadze, S | - |
dc.date.accessioned | 2022-10-14T05:15:52Z | - |
dc.date.available | 2022-10-14T05:15:52Z | - |
dc.date.issued | 2022 | - |
dc.identifier.citation | International Journal of Structural Stability and Dynamics, 2022, v. 22 n. 7, p. 2271001 | - |
dc.identifier.uri | http://hdl.handle.net/10722/319579 | - |
dc.description.abstract | Dynamic vehicle–bridge interaction (VBI) plays a crucial role in the train-induced vibrations of a railway bridge for its coupling effects may reduce the bridge response and down-shift the resonant speed. The commonly used nominal theoretical resonant speed (=fbD) of a typical railway bridge, however, is only related to the bridge frequency (fb) and car length (D), but it neglects the VBI effects of the moving trains. Such a shifted resonance phenomenon would become significant for a bridge under two trains passing by each other. This study develops a method using an equivalent modal mass to be added onto the bridge to account for the frequency shift due to the presence of multiple train cars for estimation of the shifted resonant speed. The numerical study demonstrates that the proposed method can predict the shifted resonant speed and explain the shifted-resonance phenomenon of railway bridges under train passages. | - |
dc.language | eng | - |
dc.publisher | World Scientific. The Journal's web site is located at http://www.worldscinet.com/ijssd/ijssd.shtml | - |
dc.relation.ispartof | International Journal of Structural Stability and Dynamics | - |
dc.title | Shifted Resonance of Railway Bridges Under Trains Passing by Each Other | - |
dc.type | Article | - |
dc.identifier.email | Au, FTK: francis.au@hku.hk | - |
dc.identifier.authority | Au, FTK=rp00083 | - |
dc.identifier.doi | 10.1142/S0219455422710018 | - |
dc.identifier.hkuros | 338477 | - |
dc.identifier.volume | 22 | - |
dc.identifier.issue | 7 | - |
dc.identifier.spage | 2271001 | - |
dc.identifier.epage | 2271001 | - |
dc.identifier.isi | WOS:000810492300002 | - |