中文摘要：

为研究高层组合框架-混凝土筒体混合结构的动力性能,以某30层混合结构为分析对象,建立整体空间有限元模型,进行模态与弹性时程分析。分析结果表明：外框架与筒体之间连接方式对混合结构的周期与振型影响较明显。地震作用下的层间位移角极值发生在混合结构的中上部楼层,沿结构高度楼层加速度的分布有两个极值区,框架所负担的层间剪力比例较小,但外框架承担的层间弯矩较大;改变连接方式使结构变形与内力分布发生显著变化。

英文摘要：

For the dynamic performance of core-RC and composite frame structures, The space finite element models of a 30-storey hybrid structure are established, modal analysis and elastic time-history analysis are conducted. The results indicate that the connection between frame and core has obvious effect on mode shape and natural vibration periods. The inter-story displacement maximal angle occurs on the middle stories of the composite structure. There are two extremal regions of story acceleration along the height direction of the structure under earthquake. The ratios of the story shears of exterior frame are less, whereas the ratios of the story overturning moment of exterior frame are larger, the connection will lead to significant change in the deformation and distribution of internal force.