【摘要】 为满足现代高层建筑的多功能和多用途需要，巨型结构体系在国内外高层和超高层建筑中已逐渐得到应用。本文建立了巨型框架结构体系在竖向地震作用下的分析模型及相应的分析方法，其中包括反应谱分析及时程分析。通过具体算例和分析表明，竖向地震对此类结构的作用是十分显著的，在巨型结构体系的分析和设计中，竖向地震力是不可忽视的。本文进一步地指出：在分析此类结构的地震作用时，“层模型”是不适用的。更多还原

【Abstract】 To meet the needs of the multi-function and the multi-use of the modern tall buildings, the megastructure systems have been gradually emerged and used in tall buildings in many countries. In this paper, the analytical model and relative analysis method due to vertical seismic action of the megastructure are presented, including the spectrum and time-history analysis. The results of the calculation of an example show that the vertical seismic action on megastructure is remarkable. It reminds us that the vertical seismic action on megastructures can’t be neglected in the design of this kind of structures. Furthermore, it is pointed out that the "story model" is not suitable to megastructures in dynamic analysis.更多还原