Loading...

Thermal stress analysis of concrete arch dams due to enviromental action

Shelbany, F ; Sharif University of Technology | 2004

187 Viewed
  1. Type of Document: Article
  2. DOI: 10.1115/IMECE2004-60242
  3. Publisher: American Society of Mechanical Engineers (ASME) , 2004
  4. Abstract:
  5. A three-dimensional finite element analysis was carried out to determine the annual variation of temperature and thermal stresses of a concrete arch dam. Appropriate heat transfer boundary conditions in the dam body were used for air and reservoir temperature as well as solar radiation variations. Karaj arch dam in Iran was used as a case study. The rate of convergence of the numerical solution is examined. Results of the finite element analysis show that probable cracks occur in a very narrow region of the downstream face. Thermal loads have the most significant effects for causing downstream cracks in comparison with self-weigh and hydrostatic loads. The cracked areas of downstream face conform to the regions that have the highest temperature in downstream face. It can be associated to the solar radiation, which shows two-dimensional analysis of an arch dam cannot yields accurate results and three-dimensional analysis is necessary. Copyright © 2004 by ASME
  6. Keywords:
  7. Concrete arch dams ; Elastic static structural analysis ; Environmental heat transfer ; Finite element method ; Thermal stresses
  8. Source: 2004 ASME International Mechanical Engineering Congress and Exposition, IMECE, Anaheim, CA, 13 November 2004 through 19 November 2004 ; Volume 375, Issue 1 , 2004 , Pages 393-402 ; 02725673 (ISSN)
  9. URL: https://asmedigitalcollection.asme.org/IMECE/proceedings/IMECE2004/4711Xa/393/298814