摘要
我国250 m以上超高层建筑数量日益增加,超高层建筑由长三角、珠三角地区逐渐向全国其他区域扩展,其中环渤海地区以及部分二线城市中超高层建筑发展迅速。对不同高度的超高层建筑,其常用的结构体系为:框架-核心筒、框筒-核心筒、巨型框架-核心筒和巨型框架-核心筒-巨型支撑结构。分析表明:随着结构高度的增加,巨型框架和巨型支撑应用较多,混合结构在超高层建筑结构中广泛应用。通过实际工程造价分析,研究了建筑高度、抗震设防烈度、结构材料对超高层建筑工程造价的影响。分别从超高层建筑形态空气动力学优化和长周期响应方面,阐明了超高层建筑结构分析、设计中的关键问题。采用黏滞阻尼器可有效降低超高层建筑结构地震响应,对黏滞阻尼器在实际超高层建筑中的应用现状及发展前景进行了简要介绍。
In China, super high-rise buildings have got rapid development by far, which spread from Yantze River delta and Pearl River delta to other regions. More notably, in circum-Bohai-Sea region and some second-tier cities, super high-rise buildings show much more significant progress. For buildings with different heights, the frame-core tube, framed tube-core tube, mega frame-core tube and mega frame-core tube-mega brace are commonly adopted. With the increase of height, mega frame and mega brace have more application. Composite structure is the main structural system for super high-rise buildings. Through construction cost of collected projects, the influences of height, seismic intensity and structural material on cost of installation and civil engineering are analyzed. Issues of structural design and analysis, such as aerodynamics modification for wind-resistant and structural response on long- period seismic action, are illustrated. With the aim of reducing seismic response, viscous damper is widely used as a energy-dissipated measure. Therefore, the applicaiton and prospect of viscous presented at last. damper on super high-rise buildings are
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2014年第3期1-7,共7页
Journal of Building Structures
关键词
超高层建筑结构
结构体系
抗风设计
长周期地震作用
耗能减震
super high-rise building structure
structural system
wind-resistant design
long-period seismic action
seismic energy dissipation
