全容式LNG储罐基底隔震计算模型及动力时程分析

Petroleum Engineering Construction(2013)

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Abstract
以现有的钢质储液罐的隔震计算模型为基础,建立了全容式LNG储罐的考虑基础整体转动刚度影响的基底隔震集中质量法计算模型,并以唐山LNG接收站项目的16万m3 LNG储罐为对象进行了动力时程分析.计算结果表明,若不考虑基础整体转动刚度的影响会引起支座剪力和位移计算值过小,这对工程设计是不利的;在隔震情况下,单桩所受的地震水平力和竖向压力均小于试桩报告的试验值,满足了桩的承载力要求.
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Key words
seismic base isolation,time history dynamic analysis,mathematical model,full-containment LNG storage tank
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