| 服役钢筋混凝土桥梁时变可靠性分析 |
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| 引用本文： | 周彦,王根会.服役钢筋混凝土桥梁时变可靠性分析[J].兰州铁道学院学报,2007,26(1):75-77. |
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| 作者姓名： | 周彦 王根会 |
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| 作者单位： | 兰州交通大学土木工程学院 甘肃兰州730070 |
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| 摘 要： | 分析了影响桥梁抗力变化的因素,讨论了桥梁抗力的衰减模型,并根据已有抗力信息采用回归分析方法及最小二乘法确定模型参数的方法,建立抗力随时间变化的可靠度分析模型.对某座实际钢筋混凝土桥梁的可靠度进行了分析研究.结果表明所研究方法的可靠性和有效性.
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| 关 键 词： | 服役钢筋混凝土桥梁 时变结构 结构抗力 可靠度 |
| 文章编号： | 1001-4373(2007)01-0075-03 |
| 修稿时间： | 2006-09-13 |
Analysis of the Existing Reinforced Concrete Bridge's Time-dependent and Reliability |
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| Zhou Yan,Wang Genhui.Analysis of the Existing Reinforced Concrete Bridge''''s Time-dependent and Reliability[J].Journal of Lanzhou Railway University,2007,26(1):75-77. |
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| Authors: | Zhou Yan Wang Genhui |
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| Institution: | School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070,China |
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| Abstract: | Based on the bridge resistance changing factors,an attenuation model for time-dependent bridge resistance is introduced,and a method for determining the model parameters with available resistance information using regression and least squares principles is detailed.Moreover,a reliability model in further service of time with the present time as the starting point is presented.Finally,the reliability of an actual reinforced conrete bridge is assessed using the model presented in this paper.It shows that the reliability and the avalibility of this study method. |
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| Keywords: | existing reinforced concrete bridge time-dependent structure structural resistance reliability |
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