某高层框架-核心筒结构的振型分解反应谱分析

Mode-decomposition Response Spectrum Analysis of a High Rise Frame-core tube Structure

高层建筑最近十几年的快速发展是人口城市化,土地资源紧张,社会商业化的一种必然趋势.高层框架核心筒的钢筋混凝土结构作为高层建筑常用的一种结构形式,是我国目前应用较多的一种结构形式.以某一工程实例为背景,运用大型有限元软件对其进行三维建模,进行了单向地震作用和双向地震作用下的振型反应谱分析,研究成果对同类型的高层建筑具有一定的借鉴意义.

In recent years, the rapid development of high-rise buildings is the inevitable trend of population urbanization, land resources tension and social commercialization. The reinforced concrete structure of the high-rise frame-core tube, as one of the most commonly used structural forms in high- rise buildings, is widely used in our country at present. Based on the background of an engineering ex- ample, the three-dimensional modeling of the structure is carried out by using the large finite element software. The mode-decomposition response spectrum analysis of structure under one directional and bi- directional earthquake are carried out. The research results have certain reference significance to the same type of high-rise building.