Mechanical Behavior of Round-Ended Concrete Columns Reinforced by CFRP–Aluminum Tubes
CODEN: JTEVAB
Abstract
The mechanical performances of carbon fiber reinforced plastic (CFRP) and aluminum alloy tube reinforced round-ended concrete columns were investigated in this paper. Eight axial compression tests on specimens with circular ends of CFRP–aluminum tubular round-ended concrete columns were designed and made. The axial compression test and theoretical research were carried out. The results show that CFRP improves the confinement of aluminum alloy tube to core concrete, and improves the bearing capacity and ductility of specimens. The maximum axial bearing capacity and ductility of aluminum alloy pipe with the same section size increased by 30.8 % and 43.4 %, respectively. The composite constraint model for calculating the bearing capacity of concrete columns reinforced by CFRP–aluminum tubes is proposed. The calculation results obtained by this calculation method are in good agreement with the experimental values. The model can be used to analyze the axial compression performance of CFRP–aluminum tube reinforced round-ended concrete columns.
Author Information
Yuan, Xin
School of Civil Engineering, Suzhou University of Science and Technology, Room 307 of Road and Bridge Department, Soochow University of Science and Technology, Suzhou City, Jiangsu Province, China
Li, Qinqing
School of Civil Engineering, Suzhou University of Science and Technology, Suzhou City, Jiangsu Province, China
Huang, Peng
School of Civil Engineering, Suzhou University of Science and Technology, Suzhou City, Jiangsu Province, China
Xu, Yicheng
School of Civil Engineering, Suzhou University of Science and Technology, Suzhou City, Jiangsu Province, China
Yang, Changsen
School of Civil Engineering, Suzhou University of Science and Technology, Suzhou City, Jiangsu Province, China
Zheng, Wei
Shanghai Pudong New District Highway Construction Development Co., Ltd., Shanghai, China
