Post-earthquake fire resistance of stainless steel K-joints considering gradient temperature effect

doi:10.1016/j.jcsr.2022.107219

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	Post-earthquake fire resistance of stainless steel K-joints considering gradient temperature effect
	Xu, Jixiang 1; Wu, Shuge 1; Han, Jianping 1; Wang, Jianjun 1; Li, Zhanjie 2
刊名	Journal of Constructional Steel Research
	2022-05-01
卷号	192
关键词	Computation theory Earthquakes Fire resistance Software testing Stainless steel Transient analysis Damage variables Gradient temperature K-joint Parameter studies Post-earthquake fire resistance Post-earthquake fires Residual deformation Stainless steel K-joint Stress deformations Wall thickness ratios
ISSN号	0143-974X
DOI	10.1016/j.jcsr.2022.107219
英文摘要	The objective of this paper is to investigate the fire resistance of the stainless steel K-joints considering gradient temperature effect under post-earthquake fire given that there is no relevant research on this kind of the stainless steel K-joints. The possibility of a fire resulting from an earthquake is high, the residual stress and residual deformation caused by an earthquake will remarkably reduce the fire resistance of the stainless steel K-joints. It is of practical interest to explore the post-earthquake fire resistance of the stainless steel K-joints. Accuracy and reliability of computation models to the stainless steel K-joints were validated using existing test results, temperature field distribution was obtained via transient response analysis, 24 computation models were established using finite element software ANASYS, then a parameter study was conducted by considering following parameters such as the diameter ratio of brace to chord (β), diameter to wall thickness ratio of chord (α), wall thickness ratio of brace to chord (η), thickness of the fire coating protection (tfr), angle between the brace and the chord (θ) and damage variable (D~). The results demonstrated that the parameters β, α, tfr, and θ had significant impacts on the post-earthquake fire resistance associated with the stainless steel K-joints, the damage variable D~had a dramatic effect on the post-earthquake fire resistance of the stainless steel K-Joints. The findings related to this study can provide the reference value for the design, maintenance and reinforcement against the stainless steel K-joints. © 2022 Elsevier Ltd
WOS研究方向	Construction & Building Technology ; Engineering
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000793516300005
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/157925]
专题	土木工程学院教务处（创新创业学院）
作者单位	1.Department of Civil Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Department of Engineering, SUNY Polytechnic Institute, Utica; NY; 13502, United States
推荐引用方式 GB/T 7714	Xu, Jixiang,Wu, Shuge,Han, Jianping,et al. Post-earthquake fire resistance of stainless steel K-joints considering gradient temperature effect[J]. Journal of Constructional Steel Research,2022,192.
APA	Xu, Jixiang,Wu, Shuge,Han, Jianping,Wang, Jianjun,&Li, Zhanjie.(2022).Post-earthquake fire resistance of stainless steel K-joints considering gradient temperature effect.Journal of Constructional Steel Research,192.
MLA	Xu, Jixiang,et al."Post-earthquake fire resistance of stainless steel K-joints considering gradient temperature effect".Journal of Constructional Steel Research 192(2022).