Analysis on Seismic Performance of Steel-Reinforced Concrete-Filled Circular Steel Tubular (SRCFST) Members Subjected to Post-Fire

doi:10.3390/ma15062294

	Analysis on Seismic Performance of Steel-Reinforced Concrete-Filled Circular Steel Tubular (SRCFST) Members Subjected to Post-Fire
	Han, Yi 1,2; Bao, Yanhong 3
	2022-03
发表期刊	Materials
卷号	15 期号:6
摘要	Steel-reinforced concrete-filled steel tubular (SRCFST) columns have a great development prospect in engineering practice due to their high load-bearing capacity, good ductility, and energy consumption capacity. This paper established the post-fire seismic analysis model of SRCFST with a circular-cased H section using the sequential coupled thermal-stress method by ABAQUS. The P- curve, stiffness, ductility, and energy dissipation were calculated. Then, the post-fire seismic performance of CFST members was compared while keeping the total steel ratio constant, and it revealed that the SRCFST had superior ductility to CFST. Finally, the ductility coefficient and skeleton curve were parametrically evaluated. The results of the study showed that the effects of heating time (th ), axial compression ratio (n), slenderness ratio (λ), and steel tube ratio (αt ) on the skeleton line of SRCFST columns are more significant; the axial compression ratio (n), slenderness ratio (λ), and steel tube ratio (αt ) have a negative influence on the ductility subjected to post-fire. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
关键词	Axial compression Columns (structural) Ductility Energy dissipation Energy utilization Fires Musculoskeletal system Reinforced concrete Seismic waves Seismology Steel fibers Axial compression ratio Circular steels Concrete-filled Parameter analysis Post-fire Seismic Performance Slenderness ratios Steel reinforced concrete Steel tube Steel-reinforced concrete-filled circular steel tubular member
DOI	10.3390/ma15062294
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000775054900001
出版者	MDPI
EI入藏号	20221411925802
EI主题词	Tubular steel structures
EI分类号	408.2 Structural Members and Shapes ; 412 Concrete ; 461.3 Biomechanics, Bionics and Biomimetics ; 484 Seismology ; 484.1 Earthquake Measurements and Analysis ; 525.3 Energy Utilization ; 525.4 Energy Losses (industrial and residential) ; 545.3 Steel ; 819.4 Fiber Products ; 914.2 Fires and Fire Protection ; 951 Materials Science
来源库	WOS
引用统计	被引频次：1[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/157877
专题	兰州理工大学
通讯作者	Han, Yi
作者单位	1.Gansu Agr Univ, Coll Water Conservancy & Hydropower Engn, Lanzhou 730070, Peoples R China; 2.Lanzhou Univ Technol, Key Lab Disaster Prevent & Mitigat Civil Engn Gan, Lanzhou 730050, Peoples R China; 3.Qinghai Univ, Sch Civil Engn, Xining 810016, 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
推荐引用方式 GB/T 7714	Han, Yi,Bao, Yanhong. Analysis on Seismic Performance of Steel-Reinforced Concrete-Filled Circular Steel Tubular (SRCFST) Members Subjected to Post-Fire[J]. Materials,2022,15(6).
APA	Han, Yi,&Bao, Yanhong.(2022).Analysis on Seismic Performance of Steel-Reinforced Concrete-Filled Circular Steel Tubular (SRCFST) Members Subjected to Post-Fire.Materials,15(6).
MLA	Han, Yi,et al."Analysis on Seismic Performance of Steel-Reinforced Concrete-Filled Circular Steel Tubular (SRCFST) Members Subjected to Post-Fire".Materials 15.6(2022).

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