New Composite Pavement Structure on Orthotropic Steel Bridge Deck

Four kinds of design index, including surface tensile stress of paving layer, interlayer shear stress between paving layer and steel bridge deck, vertical compressive strain of paving layer, and shear stress of paving layer, are put forward in this paper according to the main distress of the pavement on orthotropic steel bridge. Next, the mechanical behavior of local wearing surface on orthotropic steel bridge deck with rib stiffener, longitudinal clapboard, and diaphragm was analyzed by finite element method. A new composite wearing surface system with cement-based intermediate layer, shear stud connector, and SMA13 surface is presented. A number of small scale tests such as the thermal compatibility test, rutting test under high temperature, and fatigue durability test of the new composite wearing surface system are performed to investigate the performance of the new composite overlay bonded to a steel plate. Results indicate that the higher elastic modulus of the intermediate layer and/or the thicker wearing surface and the reduced stress and strain in the critical fatigue portions of the surfacing are more favorable to the overall wearing surface. Compared with the traditional double-layer asphalt concrete surfacing, the performance of the new composite system is better.

  • Availability:
  • Authors:
    • Li, Xuelian
    • Chen, Yuliang
    • Zhou, Zhigang
    • Zhang, Qisen
  • Publication Date: 2010-1

Language

  • Chinese

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01152113
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 10 2010 4:48PM