防屈曲支撑框架结构的设计与分析

Design and Analysis of Buckling Restrained Brace Structure

防屈曲支撑框架结构作为一种新的耗能减震体系,在国外的研究和应用日趋增多,然而在国内的研究才刚刚起步。以三层三跨的平面钢框架为例,提出防屈曲支撑框架结构的设计流程,着重对设计流程中防屈曲支撑截面积的确定方法进行研究、比较。对不同的支撑布置形式进行分析比较,以给出选择合适的支撑布置形式的依据,为防屈曲支撑框架结构的设计提供依据。

As a new energy dissipation system, the buckling re- strained brace has attracted many interests in foreign countries and its application becomes very popular today. While in China, the study about it has just begun. Taking the three-three plane of steel framework as an example, this paper proposes the design process for the buckling restrained brace, and compares different methods to determine the cross-sectional area of buckling restrained brace, which is an important step in the design process. Further more, this paper analyses different forms of brace layout basis for the choice of a suitable brace layout and the support for the design of buckling restrained brace.