Theoretical Analysis of Extreme Temperatures and Thermal Stresses in Bridge Deck Pavements

Thermal stresses at extreme temperature conditions can cause various pavement distresses. These distresses may degrade the structural performance of bridge deck pavements (BDP), such as upheaval, low-temperature cracking, reflective cracking, etc. It is essential to understand the influence of the extreme temperatures on the pavement distresses. Based on the analytical solutions of temperature in BDP, the simplified formulae for calculation of stresses for the extreme temperatures (maximum and minimum temperatures) in BDPs were developed in this study. The calculated results obtained from the developed simplified formulae were then compared with the data measured in the field. The differences between them were found to be within 2℃. In addition, this paper also analyzed the thermal stresses at the extreme temperatures in BDP. The sample bridge deck and asphalt concrete pavements were analyzed. The maximum principal and shear stresses in the BDP at the wide range of temperatures were calculated using 3D finite element method. The compared results showed a strong linear correlation between the BDP maximum principal stress and the elastic modulus. This linear relationship also existed between the shear stress and the elastic modulus. From the finite element analysis, it is found that the BDP elastic modulus affects the thermal stress more than the thickness of BDP. With the consideration of thermal stresses of BDP, the thickness of BDP from 6 to 12 cm is recommended for the BDP construction.

• Record URL:
  • http://www.ijprt.org.tw/files/sample/V4N4%20(238-243).pdf
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/19966814
• Supplemental Notes:
  • Abstract used by permission of publisher.
• Authors:
  • Sheng, Yanping
  • Wang, Qian
  • Li, Haibin
• Publication Date: 2011-7

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 238-243
• Serial:
  • International Journal of Pavement Research and Technology
  • Volume: 4
  • Issue Number: 4
  • Publisher: Chinese Society of Pavement Engineering
  • ISSN: 1996-6814
  • EISSN: 1997-1400
  • Serial URL: http://www.ijprt.org.tw/index.php
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Asphalt concrete; Bridge decks; Finite element method; High temperature; Low temperature; Modulus of elasticity; Pavement distress; Thermal stresses; Thickness
• Subject Areas: Bridges and other structures; Highways; Pavements; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01351765
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 14 2011 11:12AM