(上海维固建筑结构设计有限公司，上海 200235)

［摘要］针对传统防屈曲耗能支撑在应用上的缺点，设计了一种新型防屈曲耗能支撑。该支撑采用型钢组合套管，有自重小、易加工、制作周期短、质量容易保证等优点。对该支撑进行了反复拉压试验研究，试验滞回曲线饱满，相对变形达到1/30时无破坏迹象，表明该支撑具有良好的耗能能力和稳定的工作性能，适合在工程实践中应用。

［关键词］防屈曲耗能支撑;滞回曲线;结构加固

Experimental study and application of a new-type buckling restrained brace with combined section steel as sleeve

Xu Jidong, Ji Xiaoping, Huang Kunyao, Li Jing, Liu Zhuo(Shanghai WEGO Building Structure Design Co., Ltd., Shanghai 200235, China)

Abstract:A new type of buckling restrained brace (BRB) is designed against the shortages of traditional BRB in application area. This new brace has many merits such as light self-weight, easy to manufacture, short producing period and reliable quality control for its section-steel thimble combination. The result of reduplicate draw-press circle experiment of this brace shows that, the hysteretic curve is plump and stable, and while the relative distortion reached 1/30, no destruction happens. The result indicates that this brace has good energy-dissipation capability and stable workability, and it is suitable to be applied in construction projects.

Keywords:buckling restrained brace; hysteretic curve; structure strengthening

作者简介：徐继东，工学硕士，Email:yanfa@wegotech.com.cn。

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