长输管道在多点输入下的地震响应分析
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摘要
引入反应谱和功率谱的转换关系,采用功率谱修正迭代方法,改进了基于设计反应谱的空间多点相关非平稳地震动的合成方法。建立了考虑管-土相互作用的长输管道有限元模型,并考虑地震波传播的空间效应和行波效应,开展了均一场地条件下埋地管道的时程地震反应分析。
Introducing the conversion relation between response spectrum and power spectrum, adopting an iteration method to modify the power spectrum, an improved synthesis method of multi-point correlated and non-stationary earthquake ground motion is proposed on the base of the design response spectrum. Considering the interaction of soil and structure, the finite element model of a long-distance pipeline is established. Combined with space-varied effect and traveling wave effect, earthquake response analysis of the long-distance pipeline buried in the homogeneous site soils.
引文
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