| 基于疲劳损伤机理的混凝土冻融劣化模型分析 |
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| 引用本文： | 裴文强.基于疲劳损伤机理的混凝土冻融劣化模型分析[J].铁道建筑技术,2014(5):51-54. |
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| 作者姓名： | 裴文强 |
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| 作者单位： | 中铁十八局集团第四工程有限公司,天津300350 |
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| 摘 要： | 结合动弹性模量相对值的变化特点,对不同系列的混凝土试件进行了抗冻试验,基于疲劳损伤机理建立了混凝土冻融劣化模型,并引用相关试验数据对模型进行了验证,结果表明建立的模型与冻融试验数据相关性非常好,能够较好地反映混凝土冻融损伤劣化规律,可作为预测混凝土冻融损伤和寿命的新方法。
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| 关 键 词： | 混凝土 抗冻性 相对动弹性模量 劣化 |
Model Analysis of Freeze-thaw Damage Deterioration of Concrete Based on Fatigue Damage Theory |
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| Pei Wenqiang.Model Analysis of Freeze-thaw Damage Deterioration of Concrete Based on Fatigue Damage Theory[J].Railway Construction Technology,2014(5):51-54. |
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| Authors: | Pei Wenqiang |
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| Institution: | Pei Wenqiang (China Railway 18th Bureau Group Co. Ltd. , Tianjin 300350, China) |
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| Abstract: | Based on the change law of concrete relative dynamic modulus of elasticity and combined with fatigue damage theory, the model of concrete freeze-thaw damage is established and verified the relevant experimental data. The results show that the correlation of freeze-thaw damage model and test data is excellent, which can precisely reflect concrete freezethaw deterioration law and predict concrete freeze-thaw life. |
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| Keywords: | concrete frost resistance relative dynamic modulus of elasticity deterioration |
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