基础隔震结构竖向地震反应试验研究  

Vertical Seismic Responses of Base Isolated Buildings

作　　者：胡晓莹[1] 朱玉华[1] 

机构地区：[1]同济大学建筑工程系,上海200092

出　　处：《结构工程师》2012年第4期122-127,共6页Structural Engineers

摘　　要：通过模拟地震振动台试验,研究了基础隔震结构的竖向地震反应特点。首先通过对不同支座的竖向力进行比较可知,基础隔震结构在遭遇水平地震波时,位于支座布置平面中非对称轴的支座处可能产生较大的竖向反应;其次对隔震结构和非隔震结构的竖向地震反应进行对比分析可知,基础隔震结构对于竖向地震动的隔震效果不明显。因此竖向地震动对结构的作用不可忽视,在进行基础隔震结构抗震设计中应加以关注。The vertical seismic responses of base isolated buildings were studied by means of shaking table model test. First, we got that vertical response of bearing on non-symmetry axis which could be severe under horizontal earthquake wave through the comparison of vertical forces of different bearings. Comparison of vertical responses of isolated and non-isolated structure indicated that the effect of vertical isolation was not obvious so the effect of vertical earthquake could not be ignored and high attantion during seismic design of structures should be paid.

关 键 词：基础隔震 竖向地震反应 铅芯橡胶隔震支座 振动台试验 

分 类 号：TU352.12[建筑科学—结构工程]