压力容器2016，Vol.33Issue(9)：18-27,10.DOI:10.3969/j.issn.1001-4837.2016.09.003
支架式球形储罐层间隔震分析
Simplified Model Research of Framed Spherical Tank Seismic Substructure
摘要
Abstract
Facing the safety problems of spherical tanks that develop to large scales and high parameters, mid-story seismic isolation has wide application field.But setting isolation layer in the framed spherical tank may lead to strong earthquake reaction on the parts of isolation layer and below the isolation layer. This paper took the 1500 m3 storage tank as a model,established the spherical tank finite element model of 7-layer.Set isolation layer in five different positions,put three-directions rare earthquake-waves on the isolation layer structure with 85% liquid,comparing with base isolation structure,and free of isolation structure,analyzed the dynamic responses under the different isolation layers and different earthquakes. Result shows that energy absorption of isolation,not only relate to isolation layer positions,but also relate to the characteristics of earthquake waves.The energy absorption of base isolation is better.When the iso-lation layer was set in three layer,the damping effect is the best,comparing with another four layers.关键词
支架式球形储罐/层间隔震/液体晃动/数值模拟/时程分析Key words
framed spherical tank/mid-story seismic isolation/liquid sloshing/modal analysis/time-histo-ry analysis分类
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周利剑,王雪,孙铭阳,郭俊男..支架式球形储罐层间隔震分析[J].压力容器,2016,33(9):18-27,10.基金项目
黑龙江省教育厅科学技术研究（面上）计划项目 （）
