（广东省建筑设计研究院， 广州 510010）

［摘要］稀柱框架-核心筒结构由于有良好的抗震性能以及开阔的建筑使用空间，在超高层建筑中的应用越来越广泛。针对稀柱框架-核心筒结构体系，通过采用YJK软件对两个工程的多个方案进行的小震、中震对比分析及采用SAUSAGE软件进行的大震对比分析，研究了框架梁刚度、核心筒自重、框架柱数量及大小以及放宽层间位移角的限制对结构整体性能的影响。结果表明，加大各层框架梁刚度时，稀柱框架-核心筒结构整体性能与常规框架-核心筒结构加强层设置伸臂桁架或腰桁架加强层方案相近；稀柱框架-核心筒结构体系的核心筒沿竖向高度逐步取消部分受力较小墙肢，可保证结构整体抗侧刚度，减轻结构自重；在结构性能满足实际使用安全情况下，放宽小震下层间位移角的限制是可行的。

［关键词］稀柱框架-核心筒； 框架梁刚度； 核心筒自重； 高层建筑

中图分类号：TU318, TU375文献标识码：A文章编号：1002-848X(2016)21-0001-06

Research on sparse column frame-corewall structural system in high\|rise buildings

Chen Xing， Zhang Xiaoliang， Long Xiuhai， Chen Hang， Lin Jinghua

(Architectural Design and Research Institute of Guangdong Province, Guangzhou 510010, China)

Abstract:Sparse column frame-corewall structure is characterized by good seismic performance and open building space, and it is widely used in super high-rise buildings. For sparse column frame-corewall structural system, YJK software was used to conduct comparison analysis on multiple schemes of two engineerings under frequent earthquake and fortification earthquake respectively, and  SAUSAGE software was used to conduct comparison analysis  under rare earthquake. The influences of frame beam stiffness, deadweight of corewall, frame column quantity and size, easing restriction of the interlayer displacement angle on the overall performance of the structure were studied. Results show that when increasing the frame beam stiffness of each layer, overall performance of sparse column frame-corewall structure is similar to that of conventional frame-corewall structure strengthened by outriggers or waist trusses. It can ensure the integral structural lateral stiffness and reduce structural deadweight if the part of wall limbs with smaller stress is eliminated along the vertical height of corewall of sparse column frame-corewall structural system. Under the condition that structure performance meets the actual use safety, it is feasible to ease interlayer displacement angle limitation under frequent earthquake.

Keywords:sparse column frame-corewall; frame beam stiffness; corewall deadweight;  high\|rise building

作者简介：陈星，教授级高级工程师，院结构总工，一级注册结构工程师，Email: chenxingsy@163.com。