多自由度时变结构时变动力可靠性超越率分析
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摘要
本文对多自由度时变结构建立了随机振动微分方程,研究了在地震荷载作用下结构的时变可靠性,提出了时变动力可靠性超越率分析方法,并对几类特殊的安全区域给出了超越率计算公式.
The random vibration differential equation on time dependeat structure of multi-degree of freedom is set up. The time-dependent dynamic reliability of structure under the earthquake effect is analyzed. The passage rate analytie method of the reliability is proposed,and the passage rate formulas of reliability on a few special safety regions are given in the paper.
引文
[1]李桂青等著.结构动力可靠性理论及其应用.北京:地震出版社,1993[2]RredMoses.NewDirectionsandResearchNeedsinsystemReliablityResearch,Structural.Safety,(1990)93—100[3]Melchers,R.E.andLiC.Q.Time-DependentStructuralSystemReliabilityurderNonstationaryLoadProcesses,Prcs.G'ICOSSAR,1993[4]李四,刘西拉.砼结构的耐久性设计.土木工程学报,1994,27(2)[5]Rice,S.O.“MathematicalAnalysisofRandomNoise”,BellSystemTech.J,23,pp.282—332;(1945),24,pp,46-156,ReprintinWax,N,(1954),SelectedPapersonNoiseandStochasticsProcess.PoverPubcications.

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