某别墅首层柱顶隔震设计分析

Design and Analysis of isolation on the top of columns for a villa

对某别墅进行首层柱顶隔震设计。时程分析表明:在7度多遇地震作用下,隔震结构与非隔震结构相比,隔震层以上最大层间剪力比为0.26,减震效果明显;首层柱子按7度罕遇地震作用下产生的内力进行强度设计,具有足够的强度;分析对比了隔震结构和非隔震结构在7度和8度罕遇地震下的层间位移角,结果表明隔震结构在罕遇地震下的层间位移角远远小于非隔震结构,隔震结构在大震下表现出了良好的工作性能。

Design of isolation on the top of columns for a villa was taken.Time history analysis showed that： story shear force of isolation structure was reduced compared to non-isolation structure under the multi frequency of 7 degree.Columns of first floor were designed under the rare frequency of 7 degree and have enough strength.Inter-story displacement angle of isolation structure and non-isolation structure was analyzed and compared showing that inter-story displacement angle of isolation structure was far lower than inter-story displacement angle of non-isolation structure under rare earthquake.Isolation structure worked well under the rare earthquake.