Fire resistance behavior of earthquake-damaged tubular T-joints at elevated temperatures

doi:10.1016/j.jcsr.2019.04.029

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Fire resistance behavior of earthquake-damaged tubular T-joints at elevated temperatures
	Xu, Jixiang 1; Yang, Longlong 1; Han, Jianping 1; Han, Zhaolong 2; Tu, Jiahuang 3; Li, Zhanjie 4
刊名	JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
	2019-08
卷号	159 页码:176-188
关键词	Tubular T-joint Critical temperature Failure mode Fire resistance behavior Post-earthquake fire
ISSN号	0143-974X
DOI	10.1016/j.jcsr.2019.04.029
英文摘要	The objective of this paper is to establish a computational model and use the model to investigate the fire resistance capability of tubular T-joints after earthquake through a parametric study. Past events statistics suggest that an earthquake may cause severe damage to the structural members, thus leads to the reduction of fire resistance after that. However, the available studies are limited to the investigations of the mechanical behavior of reinforced or unreinforced T-joints at either ambient temperature or fire alone. A computational model of the tubular T-joints is developed to simulate the behavior of the earthquake-damaged T-joints under evaluated temperature. The developed computational model is validated with the existing experimental results. Then, by using this model, a parametric study is conducted to investigate the impact of the several geometrical parameters in terms of the diameter ratio and the wall thickness ratio of the T-joint's chord and brace members along the diameter-thickness ratio of the chord member along with the damage variable to account for the level of the T-joint being damaged (or how large is the residual stress and deformation of the T-joint after the earthquake). The parametric analyses demonstrate that the significant influence of the damage variable and provide needed evidence for potential design recommendations for post-earthquake fire resistance of tubular T-joints. (C) 2019 Elsevier Ltd. All rights reserved.
资助项目	China Postdoctoral Science Foundation -"Catastrophe process and stability behavior of EBF steel frame under fire and explosion after earthquake"[2015M572664XB]
WOS研究方向	Construction & Building Technology ; Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000473381400014
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31691]
专题	土木工程学院教务处（创新创业学院）
通讯作者	Xu, Jixiang; Han, Jianping; Li, Zhanjie
作者单位	1.Lanzhou Univ Technol, Dept Civil Engn, Lanzhou 730050, Gansu, Peoples R China 2.Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, Shanghai 200240, Peoples R China 3.Xiangtan Univ, Coll Civil Engn & Mech, Xiangtan 411105, Peoples R China 4.SUNY Polytech Inst, Dept Engn, Utica, NY 13502 USA
推荐引用方式 GB/T 7714	Xu, Jixiang,Yang, Longlong,Han, Jianping,et al. Fire resistance behavior of earthquake-damaged tubular T-joints at elevated temperatures[J]. JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH,2019,159:176-188.
APA	Xu, Jixiang,Yang, Longlong,Han, Jianping,Han, Zhaolong,Tu, Jiahuang,&Li, Zhanjie.(2019).Fire resistance behavior of earthquake-damaged tubular T-joints at elevated temperatures.JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH,159,176-188.
MLA	Xu, Jixiang,et al."Fire resistance behavior of earthquake-damaged tubular T-joints at elevated temperatures".JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH 159(2019):176-188.