Impact and post-impact behaviours of steel-reinforced concrete-filled steel tubular columns after exposure to fire | |
Ji, Sun-Hang1; Wang, Wen-Da1,2,3; Xian, Wei1,2 | |
2022-10 | |
发表期刊 | STRUCTURES |
ISSN | 2352-0124 |
卷号 | 44页码:680-697 |
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. |
关键词 | Finite element analysis (FEA) model Post-fire Lateral impact Residual capacity Simplified methods Steel-reinforced concrete-filled steel tube (SRCFST) |
DOI | 10.1016/j.istruc.2022.08.030 |
收录类别 | SCIE |
语种 | 英语 |
WOS研究方向 | Engineering |
WOS类目 | Engineering, Civil |
WOS记录号 | WOS:000848549100002 |
出版者 | ELSEVIER SCIENCE INC |
来源库 | WOS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/159812 |
专题 | 土木工程学院 |
通讯作者 | Wang, Wen-Da |
作者单位 | 1.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Peoples R China; 2.Minist Educ, Western Ctr Disaster Mitigat Civil Engn, Lanzhou 730050, Peoples R China; 3.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou, Peoples R China |
第一作者单位 | 兰州理工大学 |
通讯作者单位 | 兰州理工大学 |
第一作者的第一单位 | 兰州理工大学 |
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. |
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