Residual Tensile Strength of Plain Concrete Under Tensile Fatigue Loading  

作　　者：孟宪宏 

机构地区：[1]State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2007年第3期564-568,共5页武汉理工大学学报（材料科学英文版）

基　　金：the Doctoral Authorization Point Foundation of China(No.30300078)

摘　　要：The functional relation between the residual tensile strength of plain concrete and number of cycles was determined. 99 tappered prism specimens of plain concrete were tested under uniaxial tensile fatigue loading. Based on the probability distribution of the residual tensile strength, the empirical expressions of the residual tensile strength corresponding to the number of cycles were obtained. The residual tensile strength attenuating curves can be used to predict the residual fatigue life of the specimen under variable-amplitude fatigue loading. There is a good correlation between residual tensile strength and residual secant elastic modulus. The relationship between the residual secant elastic modulus and number of cycles was also established.The functional relation between the residual tensile strength of plain concrete and number of cycles was determined. 99 tappered prism specimens of plain concrete were tested under uniaxial tensile fatigue loading. Based on the probability distribution of the residual tensile strength, the empirical expressions of the residual tensile strength corresponding to the number of cycles were obtained. The residual tensile strength attenuating curves can be used to predict the residual fatigue life of the specimen under variable-amplitude fatigue loading. There is a good correlation between residual tensile strength and residual secant elastic modulus. The relationship between the residual secant elastic modulus and number of cycles was also established.

关 键 词：CONCRETE FATIGUE uniaxial tensile fatigue loading residual tensile strength residual secant elastic modulus 

分 类 号：TU528.1[建筑科学—建筑技术科学]