| 混凝土构件裂缝控制模糊可靠度计算方法 |
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| 引用本文： | 李扬,侯建国.混凝土构件裂缝控制模糊可靠度计算方法[J].武汉理工大学学报,2012,34(3):80-85. |
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| 作者姓名： | 李扬 侯建国 |
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| 作者单位： | 武汉大学土木建筑工程学院,武汉,430072 |
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| 基金项目： | 中央高校基本科研业务费专项资金(20102100101000092) |
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| 摘 要： | 以"引入模糊示性函数的蒙特卡罗法"为基础,建立了一种混凝土构件裂缝控制可靠指标计算方法。对GB50010—2010《混凝土结构设计规范》以及修订前规范GB 50010—2002中裂缝宽度计算公式的可靠指标进行了计算比较。由此得出:GB 50010—2010中裂缝宽度计算公式的可靠指标处于1.0～1.4之间,较修订前规范公式的可靠指标整体下降了0.8左右。目前仍宜将规范公式的裂缝宽度计算保证率取为95%。
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| 关 键 词： | 混凝土裂缝 耐久性 模糊可靠度 受弯构件 轴心受拉构件 |
Calculation Method of Fuzzy Reliability Level for Crack Control of Concrete Members |
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| LI Yang
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HOU Jian-guo.Calculation Method of Fuzzy Reliability Level for Crack Control of Concrete Members[J].Journal of Wuhan University of Technology,2012,34(3):80-85. |
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| Authors: | LI Yang HOU Jian-guo |
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| Affiliation: | (School of Civil Engineering,Wuhan University,Wuhan 430072,China) |
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| Abstract: | One new quantitative analysis method to calculate crack control reliability indexes was created by applying "the Monte Carlo method with fuzzy indicator function".By using this method the reliability indexes of crack width calculation formula provided in GB 50010—2002 and GB 50010—2010 were computed and compared.Then two conclusions are gotten: Firstly,the reliability index of crack width calculation in GB 50010—2010 is mainly from 1.0 to 1.4,which is approximately 0.8 lower than the one in GB 50010—2002;Secondly,the crack width calculation guarantee rate should be kept as 95% to ensure the concrete member durability. |
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| Keywords: | concrete cracks durability fuzzy reliability index flexural members members under axial tension |
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