【摘要】 传统的防屈曲耗能支撑在强震产生屈服后,通常震后具有较大的残余变形,对结构造成不利的影响,而且支撑自身修复代价昂贵。因此,近年来部分国内外学者开始研究具有自复位功能的新型支撑形式,它具有在强震后支撑的残余变形小和自复位的功能。本文主要介绍了目前国内外关于自复位支撑的最新研究进展,对国内外已有的自复位支撑进行了分类,介绍了不同类型自复位支撑的工作原理,所采用的材料和其优缺点。除此之外,还阐述了作者开发的几种自复位支撑的组成形式和部分研究结果。更多还原

【Abstract】 when the traditional buckling-restraining braces yield in the strong earthquake event,the larger residual deformation would be produced in the braces. This will not only have adverse effects on structures but also result in expensive repair costs. Hence,in the past few years,the new self-centering energy dissipating braces have been developed and investigated at home and abroad. This not only produces small residual deformation,but also has self-centering function after strong earthquakes. In this paper the latest research progress in self-centering braces is introduced and a classification of self-centering braces is proposed. In addition,the working principle,material used and advantages and disadvantages of different kinds of self-centering braces are summarized. Finally,several self-centering braces developed by the authors are also introduced.更多还原