| 既有钢筋混凝土T梁时变可靠度分析 |
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| 引用本文： | 周鹍,邹锦华,刘洪瑞.既有钢筋混凝土T梁时变可靠度分析[J].城市道桥与防洪,2011(4):190-194,3. |
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| 作者姓名： | 周鹍 邹锦华 刘洪瑞 |
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| 作者单位： | 广东工业大学土木与交通工程学院,广东广州,510006 |
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| 摘 要： | 我国现有大量钢筋混凝土T梁结构,随着服役时间不断延长,在大气环境的作用下均存在不同程度的老化和破坏问题.该文根据混凝土碳化及钢筋锈蚀的机理,考虑抗力随时问变化,对一座桥梁进行时变可靠度分析,同时对比分析各种破坏因素对结果的影响,发现在结构抗力衰减的作用下,该桥在服役基准期50 a时已经不能达到可靠度指标为4.2的要求....
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| 关 键 词： | 钢筋混凝土T梁 耐久性 时变可靠度 |
Analysis on Time-Dependent Reliability of Existing Steel Reinforced Concrete T-beam Structure |
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| Zhou Kun,Zou Jinhua,Liu Hongrui.Analysis on Time-Dependent Reliability of Existing Steel Reinforced Concrete T-beam Structure[J].Urban Roads Bridges & Flood Control,2011(4):190-194,3. |
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| Authors: | Zhou Kun Zou Jinhua Liu Hongrui |
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| Institution: | Zhou Kun,Zou Jinhua,Liu Hongrui |
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| Abstract: | There are a great many of the existing steel reinforced concrete T-beam structures.With the continuous lengthening of service life,there are the different levels of aging and demolishing problems under the action of the atmosphere environment.Based on the mechanism of concrete carbonation and steel bar corrosion,the article analyzes the time-dependent reliability of a bridge with the time variation of resistance,and at the same time,compares and analyzes various demolishing factors on the result.It is found... |
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| Keywords: | steel reinforced concrete T-beam durability time-dependent reliability |
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