- 摘 要
-
(广州市城市规划勘测设计研究院, 广州 510060)
[摘要]在超高层建筑中,外围的框架柱多为型钢混凝土柱或钢管混凝土柱,鲜有采用纯钢框架柱,为了探索钢框架-混凝土核心筒结构在超高层建筑中的应用,以实际工程为例,首先通过对比四种框架-核心筒结构方案,衡量建设期与运营期经济效益,并结合建筑工业化方面进行结构选型;其次简要介绍钢框架-混凝土核心筒超高层结构的常规分析;最后从层间位移角的控制、竖向变形差的控制、梁墙刚接加强节点的设计、外框钢柱的屈曲分析及弹塑性时程补充分析角度,重点论述钢框架-混凝土核心筒超高层结构设计所采取的一系列关键技术,以保证结构的安全性和合理性。
[关键词]钢框架-混凝土核心筒;超高层结构;层间位移角;竖向变形差;刚接加强节点
中图分类号:TU318,TU973 文献标识码:A文章编号:1002-848X(2021)15-0018-05
Key technologies in the design of a steel frame-concrete corewall super high-rise structure
TANG Min, LIU Yongtian, CHEN Chen, SHI Wenzhi, CHEN Weijun
(Guangzhou Urban Planning & Design Survey Research Institute, Guangzhou 510060, China)
Abstract: In super high-rise buildings, the peripheral frame columns are mostly steel-reinforced concrete columns or concrete-filled steel tube columns, and the pure steel frame columns are rarely used. In order to study the application of steel frame-concrete corewall structure in super high-rise buildings, the actual project was taken as an example. Firstly, the structural system selection was carried out by comparing four kinds of frame-corewall structure schemes, measuring construction period and operation period of economic benefits, and considering the construction industrialization; secondly, the routine analysis of steel frame-concrete corewall super high-rise structure was briefly introduced; finally, a series of key technologies of steel frame-concrete corewall super high-rise structure were mainly discussed, such as the control of inter-storey displacement angle, the control of vertical deformation, the rigid enhanced joint of beam and wall, buckling analysis of steel frame columns and supplementary elastoplastic time-history analysis, to ensure the safety and rationality of the structure.
Keywords:steel frame-concrete corewall; super high-rise structure; inter-storey displacement angle; vertical deformation; rigid enhanced joint
作者简介:唐珉,硕士,高级工程师,一级注册结构工程师,Email: gz2017@163.com。