Stress-Strain Model of Concrete Damaged by Freezing and Thawing Cycles

DOI Web Site 被引用文献18件 参考文献1件 オープンアクセス
  • Hasan Muttaqin
    Division of Structural and Geotechnical Engineering, Hokkaido University
  • Okuyama Hidetoshi
    Hokkaido Electric Power, Co. Ltd.
  • Sato Yasuhiko
    Division of Structural and Geotechnical Engineering, Hokkaido University
  • Ueda Tamon
    Division of Structural and Geotechnical Engineering, Hokkaido University

説明

This study investigates the dependence of the mechanical behavior of concrete, such as strength, stiffness, and deformation capacity on the damage caused by freezing and thawing cycles (FTC). A stress-strain model for concrete damaged by freezing and thawing prior to the application of mechanical loading was proposed based on plasticity and fracture of concrete elements. The FTC fracture parameter was introduced to explain the degradation in initial stiffness of concrete resulting from freezing and thawing damage. Based on experimental data, the FTC fracture parameter was empirically formulated as a function of plastic tensile strain caused by freezing and thawing with the assumption that the plastic strain was caused by the combined effects of FTC and mechanical loading damage. The stress-strain relationships obtained by the proposed model were compared with the experimental data.

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