Running safety analysis of a train on the Tsing Ma Bridge under turbulent winds

Weiwei Guo, He Xia, You Lin Xu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

30 Citations (Scopus)

Abstract

The dynamic responses of the Tsing Ma suspension bridge and the running behaviors of trains on the bridge under turbulent wind actions are analyzed by a three-dimensional wind-train-bridge interaction model. This model consists of a spatial finite element bridge model, a train model composed of eight 4-axle identical coaches of 27 degrees-of-freedom, and a turbulent wind model. The fluctuating wind forces, including the buffeting forces and the self-excited forces, act on the bridge only, since the train runs inside the bridge deck. The dynamic responses of the bridge are calculated and some results are compared with data measured from Typhoon York. The runnability of the train passing through the Tsing Ma suspension bridge at different speeds is researched under turbulent winds with different wind velocities. Then, the threshold curve of wind velocity for ensuring the running safety of the train in the bridge deck is proposed, from which the allowable train speed at different wind velocities can be determined. The numerical results show that rail traffic on the Tsing Ma suspension bridge should be closed as the mean wind velocity reaches 30 m/s.
Original languageEnglish
Pages (from-to)307-318
Number of pages12
JournalEarthquake Engineering and Engineering Vibration
Volume9
Issue number3
DOIs
Publication statusPublished - 21 Oct 2010

Keywords

  • dynamic interaction
  • running safety
  • threshold
  • Tsing Ma Bridge
  • turbulent wind
  • wind velocity

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Mechanical Engineering
  • Civil and Structural Engineering
  • Building and Construction

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