EXPERIMENTAL AND ANALYTICAL STUDIES ON TORSION OF BRBS

摘要：

　　This paper presents experimental and analytical studies on the torsion of partly-welded buckling-restrained brace (BRB),which is originally designed to improve its low-cycle fatigue performance.Three partly-welded specimens under the low-cycle fatigue tests are used to verify the torsion buckling of the unrestrained part.Test results and failure modes show that the plastic torsion buckling of the end region,one of the possible buckling failure modes,which was observed during the test.The occurrence of the plastic torsion buckling is related to the axial load amplitude.The analytical formulas can predict the plastic torsion buckling.

关键词： Buckling-restrained brace (BRB) Plastic torsion buckling Critical stress Fatigue test

作者: Tao Li Quan Chen Chunlin Wang Jing Wu Hanbin Ge

作者单位: Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southea Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southea International Institute for Urban Systems Engineering, Southeast University, Sipailou 2＃,Nanjing 210

会议类型: 国际会议

会议名称: The Twelfth International Symposium on Structural Engineering (第十二届结构工程国际研讨会)

会议地点: 武汉

会议语种:英文

页码: 1651-1655

在线出版日期: 2012-11-17（万方平台首次上网日期，不代表论文的发表时间）