Volume 13, Issue 4 And A (Transaction A: Civil Engineering December 2015)                   IJCE 2015, 13(4 And A): 501-507 | Back to browse issues page



DOI: 10.22068/IJCE.13.4.501

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Yanlong L, Shouyi L, Yang Y, Xing T. Temperature stress and surface insulation measures of concrete face slabs during cold wave period. IJCE. 2015; 13 (4) :501-507
URL: http://ijce.iust.ac.ir/article-1-990-en.html

Abstract:   (2312 Views)

This study simulates the temperature field and temperature stress of concrete face slabs, considering the cold waves that occur during construction as well as the contact friction between the face slabs and the cushion layer. The results show that when a cold wave occurs during construction, the surface and center temperature of the face slabs continually drop with the outside air temperature, with the surface temperature drop being the largest. In addition, the surface and center of face slabs are subjected to tensile stress, with the maximum principal stress on the surface being greater than that on the center. The maximum principal stress of the surface and center occurs at approximately half of the dam height. This study also examines the surface insulation of concrete face slabs. Surface insulation can significantly improve the temperature drop range and the maximum principal stress amplitude caused by the cold wave. A stronger heat preservation results in smaller tensile stress and an increase in the amplitude of face slabs.

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Type of Study: Technical Note | Subject: Water-Hydraulic Structure

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