摘要
高层建筑斜交网格结构凭借斜柱与环梁组成的三角形稳定单元,能够同时承受重力荷载和抵抗水平侧向力。因其拥有较大的抗侧刚度和新颖的建筑外立面,而被成功运用于全球各地的地标性高层建筑。在现有的研究中,斜交网格结构在建筑设计理念、结构性能等方面的研究取得重大进展。为促进斜交网格结构体系在高层建筑结构当中的运用,文中在梳理斜交网格结构发展背景的基础上,综述了斜交网格结构的基本特征、初步设计方法、剪力滞后效应、构件屈服失效顺序、倒塌易损性和结构减震等国内外重要研究进展,同时对已有的研究成果进行总结、归纳和评析,为后续斜交网格结构的抗震研究提供思路与启发。分析表明,由于具有节省材料、模块化建造适应性强等优点,斜交网格结构体系将是实现未来复杂高层建筑结构的重要候选对象之一。与其他结构体系相比,斜交网格结构体系的研究可以认为还处于初步应用的探索阶段,仍需不断地完善其抗震性能的系统性研究。
Diagrid structure is able to bear gravity load and resist horizontal lateral force by means of triangular stable components composed of tilted columns and ring beams.It has been successfully used in landmark high-rise buildings all over the world because of its large lateral stiffness and novel building façade.In the existing study,great progress has been made in architectural design concept,structural performance of diagrid structure.In order to promote the application of diagrid structure system in high-rise building structures,the current paper combs the development background of diagrid structure.The basic characteristics,preliminary design methods,shear lag,yield failure sequence of members,collapse vulnerability and structural damping of diagrid structures are reviewed.Meanwhile,the existing results are summarized and analyzed,which provides ideas and inspiration for the future seismic study of diagrid structure.The results show that the diagrid structure system will be one of the important candidates to realize the complex high-rise building structure in the future due to its advantages of saving materials and strong modularity.Compared with other structural systems,the study of diagrid structure system is still in the exploration stage of preliminary application,and the seismic performance still needs to be improved.
作者
刘成清
方登甲
LIU Chengqing;FANG Dengjia(School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China)
出处
《地震工程与工程振动》
CSCD
北大核心
2022年第3期72-86,共15页
Earthquake Engineering and Engineering Dynamics
基金
国家自然科学基金项目(51778538)
国家留学基金委项目(201707005100)。
关键词
高层建筑
斜交网格结构
基本特征
屈服机制
性能评估
耗能减震
high-rise building
diagrid structures
basic characteristics
yield mechanism
performance evaluation
energy dissipation
