Experimental study on steel-reinforced concrete-filled steel tubular columns under the fire

doi:10.1016/j.jcsr.2021.106867

IR > 附属中学

	Experimental study on steel-reinforced concrete-filled steel tubular columns under the fire
	Mao, Wen-Jing1 ; Wang, Wen-Da1 ; Zhou, Kan 2; Du, Er-Feng 3
	2021-10
发表期刊	JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
ISSN	0143-974X
卷号	185
摘要	This paper aims to experimentally study the fire performance of steel-reinforced concrete-filled steel tubular (SRCFST) columns without fire protection. Eight SRCFST specimens with cruciform section profiled steel were tested under the ISO-834 standard fire. The various test parameters including cross-section type of steel tube (circular or square), the load ratio and load eccentricity were considered and discussed. The temperature distribution, failure modes, axial and lateral deformation, fire resistance of the specimens obtained by test were investigated in detail. The results show that the cruciform section profiled steel provided great confinement effect to core concrete, and can efficiently suppress the generation and development of cracks in concrete. The specimens with diverse load ratio or loading method present various tendency of axial deformation versus time curves, i.e. five stages for axially loading specimens with common load ratio (n = 0.4) and three stages for specimens with high load ratio (n > 0.4) or specimens under eccentric compression. The critical temperature of SRCFST specimens is much lower than that of steel structures and CFST columns at same parameters, and the fire resistance of SRCFST columns has significant improvement compared with CFST columns. Moreover, available design method for SRCFST columns and CFST columns were compared with test results to evaluate the applicability for SRCFST specimens.
关键词	Steel-reinformed concrete filled steel tubular (SRCFST) columns Failure mode Critical temperature Fire resistance
DOI	10.1016/j.jcsr.2021.106867
收录类别	EI ; SCOPUS ; SCIE
语种	英语
WOS研究方向	Construction & Building Technology ; Engineering
WOS类目	Construction & Building Technology ; Engineering, Civil
WOS记录号	WOS:000684995600005
出版者	ELSEVIER SCI LTD
EI入藏号	20213010682549
EI主题词	Reinforced concrete
EI分类号	408.2 Structural Members and Shapes - 412 Concrete - 545.3 Steel - 641.1 Thermodynamics - 914.2 Fires and Fire Protection
来源库	WOS
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/148951
专题	附属中学土木工程学院
通讯作者	Wang, Wen-Da
作者单位	1.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Peoples R China; 2.Univ Bradford, Fac Engn & Informat, Bradford BD7 1DP, W Yorkshire, England; 3.Southeast Univ, Sch Civil Engn, Nanjing 211189, 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	Mao, Wen-Jing,Wang, Wen-Da,Zhou, Kan,et al. Experimental study on steel-reinforced concrete-filled steel tubular columns under the fire[J]. JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH,2021,185.
APA	Mao, Wen-Jing,Wang, Wen-Da,Zhou, Kan,&Du, Er-Feng.(2021).Experimental study on steel-reinforced concrete-filled steel tubular columns under the fire.JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH,185.
MLA	Mao, Wen-Jing,et al."Experimental study on steel-reinforced concrete-filled steel tubular columns under the fire".JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH 185(2021).