Numerical Investigation of the Nonlinear Response of Asphaltic Surfacings on Orthotropic Steel Bridge Decks

Heavy wheel loads on the surface of orthotropic steel bridge decks lead to increasing demands for high quality surfacing materials. The non-uniform displacement fields caused by heavy wheel loads result to a multitude of states of stress in the surfacing material. This renders the damage accumulation process highly complex, since it depends not only on the material characteristics but it is also influenced by the geometry of the orthotropic steel deck bridge. In the first part of this contribution, a constitutive model capable of simulating the non-linear response of surfacing asphaltic materials will be presented. The constitutive model is verified by simulating laboratory tests of Mastic Asphalt (MA) and comparing the model predictions with actual test results. In the second part of the contribution, the dynamic response of a 3D orthotropic steel deck bridge subjected to moving dual wheel loads is investigated by means of non-linear finite element analyses. The importance of the strain distribution through the depth of the surfacing asphalt and the steel deck will be demonstrated.

• Corporate Authors:

  International Society for Asphalt Pavements

  4711 Clark Avenue, Suite G
  White Bear Lake, MN  United States  55110
• Authors:
  • Liu, X
  • Scarpas, A
  • MEDANI, TO
  • HUURMAN, M
• Conference:
  • 10TH INTERNATIONAL CONFERENCE ON ASPHALT PAVEMENTS - AUGUST 12 TO 17, 2006, QUEBEC CITY, CANADA
• Publication Date: 2006

Language

• English

Media Info

• Media Type: Print
• Pagination: p. vol1,765-74
• Monograph Title: 10th International Conference on Asphalt Pavements - August 12 to 17, 2006, Quebec City, Canada

Subject/Index Terms

• TRT Terms: Bitumen; Bridge decks; Conferences; Mathematical models; Orthotropic plates; Surfacing
• Geographic Terms: Canada
• Subject Areas: Bridges and other structures; Design; Materials; I24: Design of Bridges and Retaining Walls; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01084397
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Files: TAC
• Created Date: Jan 16 2008 7:53AM