Discussion of Method for Computing Temperature Load during Operation Period on High Arch Dam

Abstract:

According to the existing arch dam design specification, the temperature load is obtained based on analytic solution of infinite long free plate, it only considers the average temperature and the equivalent linear temperature difference of dam section in operation period, the influence of non-linear temperature difference has not been considered. This kind of simplification has some approximation; especially it can not reflect spatial effect of larger temperature gradient changes in the upstream and downstream water level change area. This paper first takes the free plate as an example, has calculated the temperature field corresponding to analytical method, finite element method, standard method, explains the rationality of using written program to carry on finite element analysis. On this basis, take Xiluodu arch dam as an example, the dam temperature load and temperature stress has been analyzed by using finite element method and standard method, the difference between both has been discussed

• Periodical: Applied Mechanics and Materials (Volume 470)
• Pages: 976-979
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.470.976
• Online since: December 2013
• Authors: Zhi Qiang Wang, Xiao Bin Wu
• Keywords: Finite Element Method (FEM), Free Plate, High Arch Dam, Temperature Load

References

[1] Ministry of Water Resources, Design specification for concrete arch dam SL282-2003, China Water Conservancy and Hydropower Press, Beijing, (2003).

[2] Bo Yang, Bo Fang Zhu, Analysis of autogenous thermal stress in operating period in arch dams, Water Resources and Hydropower Technology. 34 (2003), 24-26.

[3] Bo Fang Zhu Thermal stresses and temperature control of mass concrete, China Electric Power Press, Beijing, (1999).