Numerical Study on the Axial Compression Behavior of Composite Columns with High-Strength Concrete-Filled Steel Tube and Honeycombed Steel Web Subjected to Freeze–Thaw Cycles
Jing Ji,
Yihuan Xu,
Liangqin Jiang,
Chaoqing Yuan,
Yingchun Liu,
Xiaomeng Hou,
Jinbao Li,
Zhanbin Zhang,
Xuan Chu,
Guiling Ma
Affiliations
Jing Ji
Heilongjiang Key Laboratory of Disaster Prevention, Mitigation and Protection Engineering, Northeast Petroleum University, No. 99 Xuefu Street, High-Tech Industrial Development Zone, Daqing 163319, China
Yihuan Xu
Heilongjiang Key Laboratory of Disaster Prevention, Mitigation and Protection Engineering, Northeast Petroleum University, No. 99 Xuefu Street, High-Tech Industrial Development Zone, Daqing 163319, China
Liangqin Jiang
Heilongjiang Key Laboratory of Disaster Prevention, Mitigation and Protection Engineering, Northeast Petroleum University, No. 99 Xuefu Street, High-Tech Industrial Development Zone, Daqing 163319, China
Chaoqing Yuan
Heilongjiang Key Laboratory of Disaster Prevention, Mitigation and Protection Engineering, Northeast Petroleum University, No. 99 Xuefu Street, High-Tech Industrial Development Zone, Daqing 163319, China
Yingchun Liu
Heilongjiang Key Laboratory of Disaster Prevention, Mitigation and Protection Engineering, Northeast Petroleum University, No. 99 Xuefu Street, High-Tech Industrial Development Zone, Daqing 163319, China
Xiaomeng Hou
Key Laboratory of Structural Disaster and Control of the Ministry of Education, Harbin Institute of Technology, No. 92 West Dazhi Street, Nangang District, Harbin 150040, China
Jinbao Li
Jiangsu Southeast Special Engineering & Technology Co., Ltd., No. 19, Danfeng Street, Nanjing 210009, China
Zhanbin Zhang
Heilongjiang Key Laboratory of Disaster Prevention, Mitigation and Protection Engineering, Northeast Petroleum University, No. 99 Xuefu Street, High-Tech Industrial Development Zone, Daqing 163319, China
Xuan Chu
Heilongjiang Key Laboratory of Disaster Prevention, Mitigation and Protection Engineering, Northeast Petroleum University, No. 99 Xuefu Street, High-Tech Industrial Development Zone, Daqing 163319, China
Guiling Ma
Department of Architectural Engineering, Qiqihar Institute of Engineering, No. 01 Xiqing Road, High-Tech Industrial Development Zone, Qiqihar 161005, China
To investigate the axial compression behavior of composite columns with high-strength concrete-filled steel tube flanges and honeycombed steel web (STHHC) under load during freeze–thaw cycles, 48 full-scale composite column specimens were designed with different parameters: the restraint effect coefficient (ξ), concrete strength (fcu), number of freeze–thaw cycles (nd), slenderness ratio (λ), space–height ratio (s/hw), and hole–height ratio (d/hw). The finite element models of STHHC composite columns were simulated using ABAQUS finite element software (Version: 2021). The modeling method’s rationality was verified by comparing simulation results with experimental outcomes. Based on the finite element model, a parametric analysis of the composite columns under freeze–thaw cycles was conducted, analyzing their failure modes and load-bearing processes. The results indicate that the bearing capacity of the STHHC increased with increases in ξ and fcu, and decreased with a rise in λ. In contrast, the influence of s/hw and d/hw on the ultimate bearing capacity of the composite columns was relatively minor. An equation for calculating the axial bearing capacity of the STHHC composite columns under freeze–thaw cycles was derived using statistical regression methods and considering the impact of different parameters on the axial compressive performance of the composite columns, laying the foundation for the promotion and application of this type of composite column in practical engineering projects.
