防屈曲支撑的研究进展及其工程应用

Research Progress and Its Engineering Application of Buckling-restrained Brace

简要介绍了防屈曲支撑的组成及工作机理,详细介绍了防屈曲支撑的发展和近年来中国学者在理论研究和类型创新方面取得的研究成果;着重讨论了三重钢管、端部铰式、中部接触环式等新型防屈曲支撑的性能;最后给出了防屈曲支撑在中国的应用情况。研究结果表明:防屈曲支撑以其良好的耗能性能会有很好的发展潜力;防屈曲支撑应该向着低屈服点设计、适用于大跨结构、便于安装等方向发展,并在实际工程中推广应用。

Authors briefly introduced the composition and the working mechanism of bucklingrestrained brace （BRB）, and introduced the development of BRB in recent years and the research achievements in aspects of theoretical research and type innovation by Chinese scholars in detail, such as the triple steel tubes, hinge-type ends, central contact ring type and so on. Finally, the typical applications in China were presented. Study results show that BRB has a great potential development because of its good energy dissipation performance. BRB should be developed towards low-yield point design, large-span structures, and easy installation and so on. Meanwhile, BRB should be popularized in the engineering application.