| 抗震结构模糊随机动力可靠性分析 |
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| 引用本文： | 牛荻涛 欧进萍. 抗震结构模糊随机动力可靠性分析[J]. 振动工程学报, 1991, 4(2): 1-9 |
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| 作者姓名： | 牛荻涛 欧进萍 |
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| 作者单位： | 哈尔滨建筑工程学院(牛荻涛)，哈尔滨建筑工程学院(欧进萍) |
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| 基金项目： | 霍英东教育基金和国家自然科学基金 |
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| 摘 要： | 本文对在考虑地震烈度和场地土分类的模糊性的基础上所建立的含模糊参数的地震地面运动随机过程模型,采用分步等效线性化及状态方程法,求出了结构模糊随机变形和能量反应的统计矩;基于单参数(变形或能量)及双参数(变形和能量)的模糊破坏准则,分析了抗震结构的模糊随机动力可靠性。最后给出了两个自由度结构的数值算例,表明双参数准则更为合理和安全。
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| 关 键 词： | 抗震结构 可靠性 模糊烈度 模糊安全准则 模糊随机动力可靠性 |
Fuzzy Random Dynamical Reliability Analysis of Aseismic Structures |
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| Niu Ditao Ou Jinping. Fuzzy Random Dynamical Reliability Analysis of Aseismic Structures[J]. Journal of Vibration Engineering, 1991, 4(2): 1-9 |
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| Authors: | Niu Ditao Ou Jinping |
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| Affiliation: | Harbin Architectural and Civil Engineering Institute |
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| Abstract: | In this paper,a method is presented for analysing the fuzzy random dynamicalreliability of aseismic structures based on the double damage criterion.Firstly,thestatistical moments of fuzzy random deformation and cumulative energy are obtainedby simulating the earthquake ground motion as a random process with a fuzzy para-meter and using the equivalent linearization technique.Secondly based on the single(deformation or cumulative energy)and double(deformation and cumulative energy)fuzzy damage criteria,the each fuzzy random dynamical reliability of a multi-degree-of-freedom structure subjected to earthquake is analysed.Finally,a numericalexample of a structure of two degree-of-freedom is given. |
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| Keywords: | aseismatic structure reliability fuzzy earthquake intensity fuzzy safe criterion fuzzy random dynamical reliability |
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