| PC桥梁承载力评估计算的层次分析与模糊评判法 |
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| 引用本文： | 闫志雄.PC桥梁承载力评估计算的层次分析与模糊评判法[J].价值工程,2012,31(21):68-70. |
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| 作者姓名： | 闫志雄 |
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| 作者单位： | 山西吕梁公路局,吕梁,033000 |
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| 摘 要： | 针对在役PC(预应力混凝土)桥梁的特点,对其各部件的材料损伤程度进行模糊分级,利用AHP(层次分析)法确定各层权重,并通过模糊综合评判评估计算在役桥梁的承载能力状况。该评定方法能够反映在役PC桥梁的承载力状态,改进了承载能力评判结构模型,优化了旧桥承载能力综合评估,且通过工程实例分析对此进行了很好的验证。
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| 关 键 词： | PC(预应力混凝土桥梁) 承载力 AHP(层次分析) 模糊评判 结构模型 |
Analytic Hierarchy Process and Fuzzy Evaluation of Prestressed Concrete Bridges'Carrying Capacity Assessment |
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| YAN Zhi-xiong.Analytic Hierarchy Process and Fuzzy Evaluation of Prestressed Concrete Bridges'Carrying Capacity Assessment[J].Value Engineering,2012,31(21):68-70. |
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| Authors: | YAN Zhi-xiong |
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| Institution: | YAN Zhi-xiong(Lvliang Roads Authority of Shanxi Province,Lvliang 033000,China) |
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| Abstract: | According to the characteristics of PC(prestressed concrete) bridges,we make fuzzy classification of the various components’ material damage degree of the bridge,using AHP(analytic hierarchy process)to determine the weight of each layer,and then making use of the fuzzy comprehensive evaluation to assess the situation in the carrying capacity of the existing bridges.This evaluation method can reflect the state of the bearing capacity of prestressed concrete bridge in service,which improves the assessment structural model of the carrying capacity.It optimizes the comprehensive assessment of the carrying capacity of old bridges,and engineering examples proving this point. |
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| Keywords: | PC(prestressed concrete) bridge carrying capacity AHP(analytic hierarchy process) fuzzy evaluation structural model |
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