李国强¹，官  海²，张  杨²，胡大柱¹
    (1 同济大学，上海200092; 2 上海蓝科钢结构技术开发有限公司，上海200092)

[摘要] TJ型屈曲约束支撑在受拉和受压两种状态下都能够达到屈服，具有良好的滞回性能，是一种良好的抗侧力构件和耗能减震构件。结合工程实例，分析了屈曲约束支撑在加崮工程中的设计、施工和验收等方面的关键技术，阐述了屈曲约束支撑在加固工程中应用的显著优势。
[关键词] 屈曲约束支撑；加固工程；施工方法；验收标准

    Study on key technologies of TJ buckling restrained braces in strengthening projects
    Li Guoqiang¹, Gong Hai², Zhang Yang², Hu Dazhu¹
    (1 Tongji University, Shanghai 200092, China; 2 Shanghai Lanke Steel Structure Technology Development Co., Ltd., Shanghai 200092, China)

Abstract: The buckling restrained brace   (BRB)   could yield both in tension and compression. With a good hysteretic behavior, the BRB is a kind of element which could serve as both lateral force resisting and energy dissipating component. With the introduction of several projects, the main technologies were studied such as design, construction and acceptance criteria of the application of BRB in strengthening project, and the advantage of applying this technology in the related projects was also elaborated.
Keywords: buckling restrained brace; strengthening project; construction method; acceptance criteria