First-principle and molecular dynamic calculation of concrete-filled steel tubular to introduce stainless steel technology

International Conference on Manufacturing Technology, Materials and Chemical Engineering

材料科学;化学工业

Guo, Yaqin^1^2 ; Liang, Duoqiang^3 ; Deng, Yong^4 ; Zheng, Xuemei^1

School of Mining and Environmental Engineering, Chongqing Vocational Institute of Engineering, Chongqing

402260, China^1

College of Materials Science and Engineering, Chongqing University, Chongqing

400044, China^2

Innovation Center for Metal Resources Utilization and Environment Protection, School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi University, Nanning

530004, China^3

Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming

650093, China^4

关键词: Civil engineering structures;    Concrete-filled steel tubular;    Construction costs;    First principles;    Large energy absorption;    Molecular dynamic calculation;    Steel technologies;    Tubular structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/592/1/012030/pdf
DOI  :  10.1088/1757-899X/592/1/012030

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The concrete-filled steel tubular (CFST) structure offers numerous structural benefits, including high strength and fire resistances, favorable ductility and large energy absorption capacities. There is also no need for the use of shuttering during concrete construction; hence, the construction cost and time are reduced. These advantages have been widely exploited and have led to the extensive use of concrete-filled tubular structures in civil engineering structures. In the existing dozens of species types of stainless steel, some are suitable for concrete-filled steel tubular, some not. In this paper, the principles for selection of such types are studied, by both quantum mechanism and molecular dynamic method.