新型抑制屈曲支撑构造及稳定性研究

Research on Construction and Stability of a New-Style BRB

简述了传统抑制屈曲支撑的发展情况,对同济大学结构稳定与监测课题组提出的新型抑制屈曲支撑的力学构造进行了分析,同时通过相关公式的推导与讨论,研究了其在轴力作用下的稳定性能。另外,还就该新型抑制屈曲支撑内外管合适间隙、内外管刚度要求等问题进行了研究探讨,为其在网架、网壳结构失稳监测中的应用提供了理论依据。从研究分析可知,该新型抑制屈曲支撑作为监测构件是可行的。

The development of the traditional Buckling Restrained Brace （BRB） was introduced; the mechanical construction of the new-style BRB which was advanced by Tongji University was analysed, and the mechanic performances in the axial load of the new-style BRB was researched by formula derivation. Meanwhile, the space requirements between the inner and outer pipes were discussed as well as the stiffness requirements, all which support some academic evidences for the application of the BRB in gridding structures. According to the researches and analysis above, the feasibility to use the new-style BRB as a monitoring component was verified.