| Residual Tensile Strength of Plain Concrete Under Tensile Fatigue Loading |
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| 作者姓名： | 孟宪宏 |
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| 作者单位： | State Key |
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| 基金项目： | the Doctoral Authorization Point Foundation of China(No.30300078) |
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| 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.
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| 关 键 词： | 混凝土 疲劳试验 单轴拉伸疲劳荷载 残余抗张强度 残余正交弹性模数 |
| 收稿时间： | 30 March 2006 |
| 修稿时间： | 2006-03-30 |
Residual tensile strength of plain concrete under tensile fatigue loading |
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| Meng Xianhong,Song Yupu.Residual Tensile Strength of Plain Concrete Under Tensile Fatigue Loading[J].Journal of Wuhan University of Technology. Materials Science Edition,2007,22(3):564-568. |
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| Authors: | Meng Xianhong Song Yupu |
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| Affiliation: | (1) State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, 116024, China;(2) School of Civil Engineering, Shenyang Jian Zhu University, Shenyang, 110168, China |
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| Abstract: | 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. |
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| Keywords: | concrete fatigue uniaxial tensile fatigue loading residual tensile strength residual secant elastic modulus |
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