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   張衛(wèi)海，  張  雄
   （上海同固結(jié)構(gòu)工程有限公司，上海 200092）

[摘要] 預(yù)制裝配式鋼筋混凝土框架結(jié)構(gòu)屬于未考慮抗震設(shè)防的結(jié)構(gòu)體系，抗震性能較差。而屈曲約束耗能支撐克服了普通支撐受壓屈曲的問題，是一種集抗側(cè)力和耗能為一體的耗能減震構(gòu)件。結(jié)合實(shí)際工程的應(yīng)用，研究了屈曲約束支撐在裝配式鋼筋混凝土框架結(jié)構(gòu)抗震加固中的設(shè)計(jì)方法，并分析了加固后結(jié)構(gòu)在罕遇地震作用下的抗震性能。
[關(guān)鍵詞] 預(yù)制裝配式框架；抗震加固；屈曲約束支撐
中圖分類號(hào)：TU317 +.1    文獻(xiàn)標(biāo)識(shí)碼：A  文章編號(hào)：1002-848X(2012) Sl-0482-04

Application of buckling restrained braces in prefabricated reinforced concrete frame for seismic retrofitting
Zhang Weihai, Zhang Xiong
( Shanghai Tonggu Structural Engineering Co., Ltd., Shanghai 200092, China)

Abstract: The prefabricated reinforced concrete frame is non-seisnuc structure. Buckling restrained brace( BRB)  is a kind of prospective energy dissipation component.  As a brace,it'8 also a lateral force resistant member. Based on a practical engineering, the seismic retrofitting methods of the prefabricated reinforced concrete frame used buckling restrained brace are presented. By elastic-plastic analysis, the seismic behavior of the retrofitted building under rare earthquake was analyzed.
Keywords: prefabricated reinforced concrete frame; seismic retrofitting; buckling restrained brace