钢筋混凝土桥梁安全性影响因素敏感性分析

发布时间：2018-08-22 13:16

【摘要】：分析比较现有的敏感性分析方法,确定了适用于钢筋混凝土桥梁安全性影响因素敏感性分析方法——正交试验设计法,在此基础上,以可靠指标作为敏感性分析的试验指标,分析了不同的混凝土桥梁安全性影响因素对可靠指标的影响程度,利用等组距评定法对影响因素敏感性进行了分级,通过去掉敏感性等级低的因素,重点考虑敏感性等级较高的因素,使后续的桥梁检测和管制更有针对性。
[Abstract]:Based on the analysis and comparison of the existing sensitivity analysis methods, the orthogonal test design method, which is suitable for the sensitivity analysis of the safety factors of reinforced concrete bridges, is established. On the basis of this, the reliability index is taken as the test index of the sensitivity analysis. This paper analyzes the influence degree of different factors affecting the safety of concrete bridges on the reliability index, classifies the sensitivity of the influencing factors by using the method of equal-group distance evaluation, and removes the factors of low sensitivity grade. The factors of high sensitivity level are considered to make the subsequent bridge detection and control more targeted.
【作者单位】：中冶建筑研究总院有限公司;大连理工大学建设工程学部土木工程学院;中交公路规划设计院有限公司;
【基金】：交通运输部建设科技项目资助项目,项目编号2013318223040;2014318494020
【分类号】：U447

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