In-situ dynamic loading test of a hybrid continuous arch bridge

Hongye Gou, Liang Li, Yu Hong, Yi Bao, Qianhui Pu

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In this study, the dynamic behavior of a three-span hybrid continuous arch bridge under vehicle loading is investigated. The natural vibration characteristics of the bridge were analyzed through pulsation test. In the dynamic loading test, the vibrations of the bridge under different truck speeds and different pavement conditions were tested, and time histories of deflection and acceleration of the bridge were measured. Based on the dynamic loading test, the impact coefficient was analyzed. The results indicate that the pavement smoothness had more impacts on the vibration of the bridge than the truck’s speed. The vertical damping of the bridge under the excitation of the trucks is larger than the transverse damping. Resonance occurs at the side span of the bridge under a truck at 10 km/h.

Original languageEnglish
Pages (from-to)809-817
Number of pages9
JournalStructural Engineering and Mechanics
Volume77
Issue number6
DOIs
StatePublished - 25 Mar 2021

Keywords

  • Arch bridge
  • Dynamic response
  • Impact coefficient
  • Pavement condition
  • Truck loading test

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