中文摘要：

普通的支撑在强震作用下容易发生屈曲,渐渐不能满足建筑结构的使用要求.主要通过ANSYS有限元分析软件来分析一字形防屈曲钢支撑的耗能性能,并通过与普通支撑的对比证明防屈曲钢支撑具有良好的耗能性能;然后通过改变防屈曲钢支撑的相关参数,来研究其对防屈曲钢支撑的稳定性能以及耗能性能的影响,最后总结得出本文研究的防屈曲钢支撑具有良好的耗能性能,而且制作工艺简单,有着较好的应用前景.

英文摘要：

The common brace appears buckling easily under the strong earthquake,and it can not meet the demands of the structure.This paper analyzes the seismic performance of the steel buckling-restrained brace consisted of a flat steel bar encased in a square steel tube by the ANSYS programs and studies the effect caused by parameter＇s changes.At last,the results show that the energy dissipation of the buckling restrained steel brace is better,and it has a good future.