Volume 23 Issue 3
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CAO Wei, SONG Yu-pu, LIU Hai-cheng. FATIGUE PROPERTIES OF PLAIN CONCRETE UNDER TRIAXIAL VARIABLE-AMPLITUDE TENSION-COMPRESSION CYCLIC LOADING[J]. Engineering Mechanics, 2006, 23(3): 111-117,.
Citation: CAO Wei, SONG Yu-pu, LIU Hai-cheng. FATIGUE PROPERTIES OF PLAIN CONCRETE UNDER TRIAXIAL VARIABLE-AMPLITUDE TENSION-COMPRESSION CYCLIC LOADING[J]. Engineering Mechanics, 2006, 23(3): 111-117,.
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FATIGUE PROPERTIES OF PLAIN CONCRETE UNDER TRIAXIAL VARIABLE-AMPLITUDE TENSION-COMPRESSION CYCLIC LOADING

  • State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China;2. Dongguan Civil Engineering Quality Supervision Office, Dongguan 523000, China;3. School of Civil Engineering, Shenyang Architectural an

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  • Received Date: November 14, 2003
  • Revised Date: March 29, 2004
    Graphical Abstract
    • Abstract
  • Fatigue tests are conducted on tapered plain concrete prism specimens subjected to constant-amplitude or variable-amplitude triaxial tension-compression cyclic loading. The low level of the cyclic stress is 0.20ƒc and the upper level ranges between 0.20ƒt and 0.55ƒt. The constant lateral loading is 0.30ƒc. The three-stage evolution rule of the maximum and minimum longitudinal strains under constant-amplitude loading and its similarity under variable-amplitude loading are analyzed. The damage evolution law under both loading cases is obtained. Moreover, it is proved that Miner's rule is not applicable. A nonlinear cumulative damage model is established. Based on the model the residual fatigue life is predicted and compared with the experimental results. The better precision and applicability of the model is demonstrated.
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