建筑结构

2005, (08) 18-23

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结构的耗能减震与防屈曲支撑
Structural Energy Dissipation and Seismic Mitigation Method and Buckling-restrained Brace

郭彦林,刘建彬,蔡益燕,邓科
Guo Yanlin 1,Liu Jianbin 1,Cai Yiyan 2,Deng Ke 1(1 Civil Engineering Department,Tsinghua University,Beijing 100084,China;2 China Architecture Design & Research Group,Beijing 100044,China)

摘要(Abstract):

防屈曲支撑作为一种新型的耗能减震构件,改进了普通支撑易受压屈曲的缺点,地震时有很好的耗能能力和延性。它与框架共同组成双重抗侧力体系,目前在美国和日本有日益广泛的应用趋势,在我国个别工程中也开始使用。结合介绍这种支撑构件及支撑框架的研究和应用现状,分析了防屈曲支撑的构造和受力机理,探讨了它的应用前景。
The Buckling-Restrained Braced Frame(BRBF) has found its wide application in USA and Japan.As a new type of energy dissipation and seismic mitigation component,the Buckling-Restrained Brace(BRB) is superior to traditional brace because of its buckling inhabitation and good energy dissipation ability as well as ductility during earthquake.The current research and engineering application of the BRB and BRBF are outlined.The composition and mechanical behavior of the BRB is analyzed.This will lay a sound foundation for further application of the BRB in China.

关键词(KeyWords): 防屈曲支撑;屈曲;抗震设计;耗能;减震
buckling-restrained brace;buckling;seismic design;energy dissipation;seismic mitigation

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作者(Author): 郭彦林,刘建彬,蔡益燕,邓科
Guo Yanlin 1,Liu Jianbin 1,Cai Yiyan 2,Deng Ke 1(1 Civil Engineering Department,Tsinghua University,Beijing 100084,China;2 China Architecture Design & Research Group,Beijing 100044,China)

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DOI: 10.19701/j.jzjg.2005.08.004

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