Amplification effect classification analysis on vehicle-bridge system under road surface random excitation

Wei Ming Li, Hong Ping Zhu, Jun Bing Zhang, Yong Xia

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)

Abstract

A classification analysis method on dynamic amplification effect of the vehicle-bridge system was proposed under random spectral excitations of the road surface. The differential equations of vehicle-bridge system were solved on numerical method. The dynamic amplification factor in system was calculated and geometrical significances of point, line and plane of the factor were endued. The roughness dynamic amplification factor was defined, and was calculated based on the classification of the response type, vehicle velocity, road surface roughness. Results show that the dynamic amplification effect increases with the vehicle velocity and the ranks of road roughness, and the amplification factors of bridge are always little than those of vehicle under different ranks of road roughness. The factors are significantly affected by the rank of road roughness. So the road maintenance should concentrate on reduction of impact of bridge and vibration of vehicle.
Original languageEnglish
JournalZhongguo Gonglu Xuebao/China Journal of Highway and Transport
Volume23
Issue number5
Publication statusPublished - 1 Sep 2010
Externally publishedYes

Keywords

  • Bridge engineering
  • Dynamic amplification effect
  • Random spectral excitation
  • Statistical classification analysis
  • Vehicle-bridge system

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Transportation
  • Mechanical Engineering

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