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单地震动记录随机增量动力分析 被引量:19

SINGLE-RECORD RANDOM INCREMENTAL DYNAMIC ANALYSIS
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摘要 传统增量动力分析(IDA)方法没有考虑结构的随机性,该文将基于Nataf变换的点估计法与单地震动记录增量动力分析相结合,提出了考虑结构随机性的IDA方法。将该方法应用于钢筋混凝土框架结构,分析得到随机IDA曲线。结果表明:该方法可有效地考虑结构随机性对IDA分析结果的影响。 The conventional Incremental Dynamic Analysis (IDA) method doesn't take into account the inherent randomness in structures.In this paper,a new IDA method considering structural random properties is put forward,which combines a new point estimate method based on Nataf transformation with the single-record IDA method.The new approach is applied to a R.C.frame structure,for which the random IDA curves are obtained.It is demonstrated through a numerical example that the new IDA method can be efficiently used to investigate the effect of structural random properties on IDA results.
出处 《工程力学》 EI CSCD 北大核心 2010年第A01期53-58,共6页 Engineering Mechanics
基金 国家自然科学基金重大研究计划项目(90715021) 国家自然科学基金项目(50978080 50678057 50108005) 地震行业科研专项基金项目(200808073) 北京市自然科学基金项目(8082013)
关键词 增量动力分析 Nataf变换 结构随机性 点估计法 随机IDA曲线 incremental dynamic analysis Nataf transformation structural randomness point estimation method random IDA curves
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参考文献16

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二级参考文献49

  • 1吕大刚,于晓辉,王光远.基于Zhou-Nowak数值积分法的结构整体概率抗震能力分析[J].世界地震工程,2008,24(3):7-13. 被引量:7
  • 2吕大刚,于晓辉,王光远.基于MVFOSM有限元可靠度方法的结构整体概率抗震能力分析[J].世界地震工程,2008,24(2):1-8. 被引量:12
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