[提要]  对超高层建筑空间巨型框架的振动计算提出一个新的简化计算模型，将空间巨型框架简化为巨型柱和弹性地基上的巨型梁的组合（二级框架柱考虑其轴向变形作为巨型梁的弹性地基），按空间刚架进行刚度分析；建筑物的质量集中于巨型梁的楼层，是一种新的简化的空间杆系-层模型。为超高层建筑空间巨型框架的振动分析提供一个合理可行的算法。
[关键词]  空间巨型框架  弹性地基梁单元  杆系-层模型  振动分析

A new simplified computational model for dynamical analysis of extra tall building structure space mega-frame is established. The computational model is space member system-storey model, the space mega-frame is composed of hugecolumns and huge beams on elastic foundation, the columns of the second frame, considering its axial deformations, are seen as the elastic foundation of the huge-beams, the masses are lumped on the huge-beams storeys. The new model is simple and rational.
Keywords:  space mega-frame; beam element on elastic foundation; member system-storey model; dynamical analysis