（苏州科技大学土木工程学院， 苏州 215011）

［摘要］利用OpenSees有限元软件建立了具有相同框架部分的双跨摇摆自复位结构模型和普通框架结构模型，并对其进行静力弹塑性分析和弹塑性时程分析。通过对比两种结构的承载能力、变形和结构耗能，得出双跨摇摆自复位结构具有震后残余变形小、抗震性能良好和结构可恢复等优点。分析结果表明：双跨摇摆自复位结构能够保证其在地震作用后仅替换耗能器后继续使用，为震后结构的修复节省了成本，具有很好的工程应用前景。

［关键词］双跨摇摆自复位结构； 框架结构； 静力弹塑性分析； 弹塑性时程分析

中图分类号：TU973文献标识码：A文章编号：1002-848X(2018)21-0084-06

Analysis on seismic performance of double rocking self-centering steel braced frame system

Cheng Jiaming， Li Qicai

（School of Civil Engineering， Suzhou University of Science and Technology， Suzhou 215011，  China）

Abstract:A double rocking self-centering structure and a frame structure with the same frame system were established by using the finite element program OpenSees. Both pushover and elamsto-plastic time-history analyses were carried out. The carrying capacity，deformation and structural energy dissipation were compared to illustrate that the double rocking self-centering system has advantages such as small residual deformation, good seismic performance and structure recovery ability. Analysis results show that double rocking self-centering structure ensure its function continue to use without repair after the earthquake, which save cost of the structure and has good engineering application prospects.

Keywords:double rocking self-centering structure; frame structure; pushover analysis; elasto-plastic time-history analysis

*国家自然科学基金项目（51378326），江苏省结构工程重点实验室开放课题（ZD1204）。

作者简介：程加明，硕士，Email:389663842@qq.com。