Impact and post-impact behaviours of steel-reinforced concrete-filled steel tubular columns after exposure to fire

doi:10.1016/j.istruc.2022.08.030

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Impact and post-impact behaviours of steel-reinforced concrete-filled steel tubular columns after exposure to fire
	Ji, Sun-Hang 2; Wang, Wen-Da 1,2,3; Xian, Wei 2,3
刊名	STRUCTURES
	2022-10-01
卷号	44 页码:680-697
关键词	Finite element analysis (FEA) model Post-fire Lateral impact Residual capacity Simplified methods Steel-reinforced concrete-filled steel tube (SRCFST)
ISSN号	2352-0124
DOI	10.1016/j.istruc.2022.08.030
英文摘要	This paper presents a numerical investigation on the lateral impact and post-impact behaviours of steelreinforced concrete-filled steel tubular (SRCFST) columns after exposure to fire. The finite element analysis (FEA) model of post-fire SRCFST columns under lateral impact is developed by the ABAQUS software and calibrated. The impact responses of post-fire columns are analyzed, namely the impact process, the development of internal force, the energy change and plastic damage, etc. The impact resistance of SRCFST and CFST columns after fire is further compared, and the residual capacity of post-fire columns after lateral impact is studied. The results show that the SRCFST column after fire exhibits excellent impact performance, and the influence of fire degree on the impact resistance degradation of SRCFST columns is significantly smaller than that of CFST columns. A parametric study is also carried out to analyze the influence of various parameters on impact responses of post-fire SRCFST columns, and simplified methods are finally proposed to evaluate the impact resistance and residual capacity of post-fire SRCFST columns under lateral impact.
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000848549100002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159812]
专题	土木工程学院
作者单位	1.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou, Peoples R China 2.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Peoples R China; 3.Minist Educ, Western Ctr Disaster Mitigat Civil Engn, Lanzhou 730050, Peoples R China;
推荐引用方式 GB/T 7714	Ji, Sun-Hang,Wang, Wen-Da,Xian, Wei. Impact and post-impact behaviours of steel-reinforced concrete-filled steel tubular columns after exposure to fire[J]. STRUCTURES,2022,44:680-697.
APA	Ji, Sun-Hang,Wang, Wen-Da,&Xian, Wei.(2022).Impact and post-impact behaviours of steel-reinforced concrete-filled steel tubular columns after exposure to fire.STRUCTURES,44,680-697.
MLA	Ji, Sun-Hang,et al."Impact and post-impact behaviours of steel-reinforced concrete-filled steel tubular columns after exposure to fire".STRUCTURES 44(2022):680-697.