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    郝貴強(qiáng)，杜永山，齊建偉
    (河北大地土木工程有限公司，石家莊050021)

[摘要] 介紹了防屈曲支撐的構(gòu)成，分析了防屈曲支撐在框架-支撐結(jié)構(gòu)體系中的耗能工作機(jī)理和設(shè)計(jì)方法。結(jié)合現(xiàn)行抗震規(guī)范和實(shí)際加固改造工程，分析了防屈曲支撐在應(yīng)用過(guò)程中的計(jì)算方法和分析過(guò)程。結(jié)果表明，工程采用的耗能減震方案對(duì)減小部分構(gòu)件地震作用力的效果明顯，且結(jié)構(gòu)層間位移得到了有效控制，達(dá)到了最初擬定的設(shè)計(jì)目標(biāo)。
[關(guān)鍵詞] 防屈曲支撐；框架-支撐結(jié)構(gòu)；耗能減震；層間位移

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