郝贵强，杜永山，齐建伟
    (河北大地土木工程有限公司，石家庄050021)

[摘要] 介绍了防屈曲支撑的构成，分析了防屈曲支撑在框架-支撑结构体系中的耗能工作机理和设计方法。结合现行抗震规范和实际加固改造工程，分析了防屈曲支撑在应用过程中的计算方法和分析过程。结果表明，工程采用的耗能减震方案对减小部分构件地震作用力的效果明显，且结构层间位移得到了有效控制，达到了最初拟定的设计目标。
[关键词] 防屈曲支撑；框架-支撑结构；耗能减震；层间位移

The application of buckling-restrained braces (BRB) on earthquake resistant engineering and retrofitting
Hao Guiqiang, Du Yongshan, Qi Jianwei
(Hebei Dadi Civil Engineering Co., Ltd., Shijiazhuang 050021, China)

Abstract: The structure of buckling-restrained brace (BRB) was introduced. The design method and energy-dissipation work principles of BRB in RC frame-brace structures are analyzed. Based on seismic code and actual engineering, the enumerative and analyzable methods were analyzed. The calculating results show that the energy-dissipation method was available for decreasing seismic load on part structures and the story displacement is controlled. The original intention was realized in this method.
Keywords: buckling-restrained brace; frame-brace structure; energy-dissipation; storey displacement