| 验证荷载条件下既有梁桥可靠度分析 |
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| 引用本文： | 刘扬,杨永红.验证荷载条件下既有梁桥可靠度分析[J].公路交通科技,2011,28(3):90-94,100. |
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| 作者姓名： | 刘扬 杨永红 |
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| 作者单位： | 长沙理工大学土木与建筑学院,湖南长沙,410114 |
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| 基金项目： | 国家自然科学基金项目，教育部新世纪优秀人才支持计划，湖南省教育厅科技项目，交通部应用基础研究项目 |
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| 摘 要： | 分析了抗力服从不同先验分布时其后验分布的数字特征变化规律,建立了验证荷载条件下的抗力概率模型;结合条件概率的方法,建立了验证荷载条件下的结构可靠指标计算公式.并从验证荷载前后结构功能函数相关系数、验证荷载取值等方面对一实例桥梁进行了可靠度分析,同时研究了恒载参数、活载参数对考虑验证荷载的既有桥梁结构可靠度的影响.结果表...
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| 关 键 词： | 桥梁工程 既有桥梁 验证荷载 可靠度 结构抗力 参数敏感性 |
Analysis on Reliability of Existing Bridge Considering Proof Load |
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| LIU Yang,YANG Yonghong.Analysis on Reliability of Existing Bridge Considering Proof Load[J].Journal of Highway and Transportation Research and Development,2011,28(3):90-94,100. |
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| Authors: | LIU Yang YANG Yonghong |
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| Institution: | LIU Yang,YANG Yonghong(School of Civil Engineering and Architecture,Changsha University of Science and Technology,Changsha Hunan 410114,China) |
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| Abstract: | The statistics characters of posterior probability distribution of the resistance following different prior probability distributions were analyzed,and the resistance probability model under proof load was built.Combined with conditional probability method,the calculating formula of proof load reliability indices of structure was established.One example of the reliability analysis of a bridge considering proof load values and the correlation coefficient of structure function before and after applying proof ... |
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| Keywords: | bridge engineering existing bridge proof load reliability structure resistance parameter sensitivity |
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