EXPERIMENTAL AND NUMERICAL STUDY ON SEISMIC BEHAVIOR OF CIRCULAR STEEL-CONCRETE-CFRP-CONCRET SOLID HYBRID COLUMNS
New circular Steel-Concrete-CFRP-Concrete hybrid column (referred as SCCC hybrid column or SCCC column for brevity),suggested by first author,consists of outer steel tube,inner FRP tube,annular concrete between two tubes,and core concrete encased in CFRP tube.In this paper,the seismic behavior of SCCC column and the effects of changes of CFRP tubes diameter on seismic behavior of SCCC columns are investigated by both tests and finite element analysis.Three 260 mm diameter and 780 mm long SCCC columns were tested under constant axial load and reversed cyclic lateral load in the laboratory.In addition,finite element analysis using ABAQUS are conducted on the three SCCC columns under identical load.The results of finite element simulation are coincident with that of the tests.As the tube diameters of SCCC columns changed from 130mm to 160mm and 190mm,the value of ductility coefficient increased 3.40% and 15.50%.All the results demonstrate that the SCCC columns have excellent strength,ductility,energy absorption capacity,and the diameter of CFRP tube can influence the seismic performance of SCCC columns significantly.This study provides a basis for further research of SCCC column seismic behavior,and shall prompt the engineering apply of SCCC column.
SCCC column seismic behavior CFRP tube numerical simulation
Yongjun Liu Dong Wang Yu Wang
School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, P.R.China
国际会议
The Twelfth International Symposium on Structural Engineering (第十二届结构工程国际研讨会)
武汉
英文
261-266
2012-11-17（万方平台首次上网日期，不代表论文的发表时间）