【摘要】：分析比較現(xiàn)有的敏感性分析方法,確定了適用于鋼筋混凝土橋梁安全性影響因素敏感性分析方法——正交試驗(yàn)設(shè)計(jì)法,在此基礎(chǔ)上,以可靠指標(biāo)作為敏感性分析的試驗(yàn)指標(biāo),分析了不同的混凝土橋梁安全性影響因素對可靠指標(biāo)的影響程度,利用等組距評定法對影響因素敏感性進(jìn)行了分級,通過去掉敏感性等級低的因素,重點(diǎn)考慮敏感性等級較高的因素,使后續(xù)的橋梁檢測和管制更有針對性。
[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.
【作者單位】： 中冶建筑研究總院有限公司;大連理工大學(xué)建設(shè)工程學(xué)部土木工程學(xué)院;中交公路規(guī)劃設(shè)計(jì)院有限公司;
【基金】：交通運(yùn)輸部建設(shè)科技項(xiàng)目資助項(xiàng)目,項(xiàng)目編號2013318223040;2014318494020
【分類號】：U447

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