Numerical Study on Oblique Hysteresis Performance of Composite-sectioned Square Concrete-filled Stainless Steel Tubular Columns

2019 3rd International Workshop on Renewable Energy and Development

能源学;生态环境科学

Zheng, Yuting^1 ; Zheng, Lianqiong^1

Fujian Provincial Key Laboratory of Advanced Technology and Informatization in Civil Engineering, College of Civil Engineering, Fujian University of Technology, Fuzhou, Fuzhou

350118, China^1

关键词: Axial pressure ratio;    Bridge structures;    Concrete-filled;    Hysteresis behavior;    Hysteresis performance;    ITS applications;    Low maintenance;    Parametric study;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/267/2/022025/pdf
DOI  :  10.1088/1755-1315/267/2/022025

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The composite-sectioned square concrete-filled stainless steel tubular column has the characteristics of high rigidity, strong integrity, reasonable force, beautiful structure and low maintenance cost. It has good performance in marine platform and cross-sea bridge structure and urban landmark buildings with high corrosion resistance. However, there are few studies on the performance and design methods of this kind of structure, which restricts its application. In this paper, Finite-element models (FEMs) for analyzing the tangential hysteresis behavior of the composite-sectioned square concrete-filled stainless steel tubular columns were established and verified. A parametric study was conducted on the influence of axial compression ratio, internal and external tube diameter ratio, and oblique angle. The calculated results showed that, the composite-sectioned square concrete-filled stainless steel tubular column has good oblique hysteresis ability, but the larger axial pressure ratio or larger oblique angle will weaken the capacity, while the pipe diameter has little effect on it.