EVALUATING THERMAL STRESSES IN LOCK STRUCTURES

Thermal stresses in mass concrete structures are an ongoing concern for engineers designing these structures and must be taken into consideration at the design stage. This article is concerned with the evaluation of these stresses in lock structures, where they can cause cracking. They result from heat buildup due to the heat of hydration of the cement and the lack of surface area to dissipate that heat. The buildup cannot be dissipated until after the concrete has set. The concrete then cools and contracts, creating stresses attributable to restraints that are both internal and external to the structure. Their evaluation takes account of three other properties that contribute to determining concrete behavior: the ageing modulus of elasticity, shrinkage and creep.

  • Availability:
  • Supplemental Notes:
    • Journal article
  • Authors:
    • Fehl, B D
  • Publication Date: 1988

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Filing Info

  • Accession Number: 00656213
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM