Investigation on eccentric compression performance of basalt fiber-reinforced recycled aggregate concrete-filled square steel tubular columns

• DOI: 10.1016/j.dibe.2024.100411
• Publication Date: 2024-03-22T00:20:56Z
• Authors: Xianggang Zhang; Jixiang Niu; Ping Xu; Dapeng Deng; Yuhui Fan
• Keywords: Basalt fiber; Square (algebra)

To compensate for the performance deficiencies as well expand application field of recycled aggregate concrete (RAC), this study provides an innovative material-component type basalt fiber-reinforced (BFRRAC)-filled square steel tubular columns. The eccentric compression test after being carried out on specimens with varying replacement ratios coarse (RCA), ratio, length-diameter fiber (BF) content. failure mode process were witnessed, load-axial displacement curves obtained, and was investigated. According to results experimentation, one workable finite element model generated, soon afterwards influencing parameters BFRRAC-filled tube expanded analyzed. Moreover, N-M correlation equation developed. demonstrate that when ratio 8 11, specimen had large lateral deformation bending failure, upper core severely damaged. Increasing RCA decreased specimen's peak load, maximum degree is 49.8% 10.1%, respectively. significantly affects load. Basalt demonstrates somewhat increase in load specimen, 7.8%.