| 谱荷载下剩余强度衰减的混凝土疲劳寿命可靠性分析 |
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| 引用本文： | 赵造东,张立翔,王时越.谱荷载下剩余强度衰减的混凝土疲劳寿命可靠性分析[J].力学与实践,2002,24(1):28-30. |
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| 作者姓名： | 赵造东 张立翔 王时越 |
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| 作者单位： | 昆明理工大学,昆明,650051 |
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| 基金项目： | 云南省自然科学基金项目(98E004Z)资助. |
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| 摘 要： | 在Ｓ－Ｎ曲线的基础上，建立了一个描述混凝土剩余强度衰减的模型，并利用该模型对在谱荷载作用下混凝土试件的疲劳寿命及其可靠性进行了分析，得到疲劳寿命基于三参数Ｗｅｉｂｕｌｌ分布的分布函数．通过试验验证了该方法得出的结果是可靠的，且计算简便，便于在工程中应用．
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| 关 键 词： | S-N曲线 疲劳寿命 剩余强度 谱荷载 |
| 修稿时间： | 2000年8月14日 |
RELIABILITY ANALYSIS OF CONCRETE FATIGUE LIFE UNDER SPECTRUN LOAD BASED ON RESIDUAL STRENGTH DEGRADATION |
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| ZHAO Zaodong,ZHANG Lixiang,WANG Shiyue.RELIABILITY ANALYSIS OF CONCRETE FATIGUE LIFE UNDER SPECTRUN LOAD BASED ON RESIDUAL STRENGTH DEGRADATION[J].Mechanics and Engineering,2002,24(1):28-30. |
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| Authors: | ZHAO Zaodong ZHANG Lixiang WANG Shiyue |
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| Abstract: | Based on the concrete S-N curve, a model of residual strength degradation is established in this paper, and then both the fatigue life and its reliability are modeled and analyzed by using this degradation model and the three-parameter Weibull distribution under spectrum loading. The experiments show that the present method is reliable, the analysis and calculation is simple and effective. |
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| Keywords: | S-N curve fatigue life residual strength spectrum load |
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