张卫海，  张  雄
   （上海同固结构工程有限公司，上海 200092）

[摘要] 预制装配式钢筋混凝土框架结构属于未考虑抗震设防的结构体系，抗震性能较差。而屈曲约束耗能支撑克服了普通支撑受压屈曲的问题，是一种集抗侧力和耗能为一体的耗能减震构件。结合实际工程的应用，研究了屈曲约束支撑在装配式钢筋混凝土框架结构抗震加固中的设计方法，并分析了加固后结构在罕遇地震作用下的抗震性能。
[关键词] 预制装配式框架；抗震加固；屈曲约束支撑
中图分类号：TU317 +.1    文献标识码：A  文章编号：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