概率土-基础-结构相互作用分析的好处

IF 0.5 Q4 ENGINEERING, GEOLOGICAL

International Journal of Geotechnical Earthquake Engineering Pub Date : 2018-01-01 DOI:10.4018/IJGEE.2018010103

Z. Harichane, M. Guellil, H. Gadouri

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引用次数: 3

摘要

这篇文章强调了考虑土壤和结构参数的有益效果uncertaintiesonthesoil-structureresponse。Theimpedancefunctionsofacircularfoundationresting onarandomsoillayeroverahomogeneoushalf-spacewereobtainedbyusingconemodels。The obtainedresultsshowedthattherandomnessofthelayer 'sthicknessandtheshearwavevelocity significantlyaffectedthemeanspringcoefficientswherebycoefficientsofvariation(新冠病毒)of10%and 20%intheseparametersreducedthemeanspringcoefficientsabout32%and40%、respectively、forthe horizontalmotionandabout12.5%and25%、respectively、fortherockingmotion。Thesensitivityofthe meanstructuralresponsetotherandomnesseffectwasobtainedtobemorepronouncedtostructural参数> > > > soilparameters。此外，20%COV inboth soil和structureparameters reducedthemeanstructuralresponseabout39%，translatedbyanincreaseinthedampingofthe coupledsystemwhichmaybeconsideredasabeneficialeffectfromcodeprovisionspointofview。关键词:锥模型，阻抗函数，mcs，随机性，结构畸变

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Benefits of Probabilistic Soil-Foundation-Structure Interaction Analysis

The present article highlights the beneficial effect of considering soil and structure parameters uncertaintiesonthesoil-structureresponse.Theimpedancefunctionsofacircularfoundationresting onarandomsoillayeroverahomogeneoushalf-spacewereobtainedbyusingconemodels.The obtainedresultsshowedthattherandomnessofthelayer’sthicknessandtheshearwavevelocity significantlyaffectedthemeanspringcoefficientswherebycoefficientsofvariation(COV)of10%and 20%intheseparametersreducedthemeanspringcoefficientsabout32%and40%,respectively,forthe horizontalmotionandabout12.5%and25%,respectively,fortherockingmotion.Thesensitivityofthe meanstructuralresponsetotherandomnesseffectwasobtainedtobemorepronouncedtostructural parameters than to soilparameters. In addition,20%COV inboth soil and structureparameters reducedthemeanstructuralresponseabout39%,translatedbyanincreaseinthedampingofthe coupledsystemwhichmaybeconsideredasabeneficialeffectfromcodeprovisionspointofview. KEywoRdS Cone Model, Impedance Function, MCSs, Randomness, Structural Distortion

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来源期刊

International Journal of Geotechnical Earthquake Engineering ENGINEERING, GEOLOGICAL-

CiteScore

1.90

自引率

25.00%

发文量