Mechanical behavior of transfer column with different details in SRCRC hybrid structure
1.College of Civil and Transportation Engineering, Hohai University, Nanjing, Jiangsu 210098, China; 2.School of Civil Engineering, Xi′an University of Architecture & Technology, Xi′an, Shaanxi 710055, China
Abstract:The low cyclic reversed loading experiment of seven transfer columns of SRC-RC hybrid structure and one reinforced concrete column was carried out to investigate the mechanical behavior of transfer columns with different details. The seven transfer column specimens were all failed with shear pattern at the reinforced concrete part of upper transfer column, which means that bearing capacity of transfer column is better than that of reinforced concrete column. Displacement ductility and deformation ability of transfer column are quite different, which vary from 1.97 to 5.99 and from 1/54 to 1/21, respectively. When rotated angle of the transfer column reaches 1/50, the degenerated strength ratios of five specimens with different details are all over 0.9, which illuminates that the capacity of cyclic loading resistance is quite good. Secant stiffness of transfer column is higher than that of reinforced concrete column, which is at the interval of reinforced concrete column and steel reinforced concrete column.