Performance of steel-reinforced concrete-filled square steel tubular members under sustained axial compression loading

doi:10.1016/j.engstruct.2022.114464

IR > 土木工程学院

	Performance of steel-reinforced concrete-filled square steel tubular members under sustained axial compression loading
	Jia, Zhi-Lu 1; Wang, Wen-Da1,2 ; Shi, Yan-Li1,2 ; Xian, Wei 1,2
	2022-08-01
发表期刊	Engineering Structures
ISSN	0141-0296
卷号	264
摘要	Steel-reinforced concrete-filled steel tubular (SRCFST) members have been used in the construction owing to the superior structural performances, and are usually subjected to sustained loads during their service period. The study aims to evaluate the structural behaviour of SRCFST columns under long-term sustained load. Twenty square SRCFST columns were designed and tested to investigate the influence of sustained load on the compression behaviour. Various parameters, namely, long-term load ratio, steel ratio of profiled steel and slenderness ratio are considered to evaluate their influences on the creep in sustained load, failure mode, load-deformation curve and load–strain relation of the SRCFST columns respectively. Furthermore, the finite element (FE) model was established via software ABAQUS and its reliability was verified. The results indicate that the long-term load ratio has slight effect on the ultimate strength of SRCFST specimens. When considering the long-term load, the ultimate strength of SRCFST stub columns under axial compression nearly remains unchanged, while the load-carrying capacity for long columns actually decreases. Finally, a simplified calculation method considering long-term loading effect for the load-carrying capacity index of SRCFST columns under axial loading is proposed through parametric regression. © 2022 Elsevier Ltd
关键词	ABAQUS Axial compression Composite structures Compressive strength Creep Load limits Loads (forces) Reinforced concrete Software reliability Calculation method Concrete-filled steel tubular Experimental study Finite element analyse Load ratio Long term load Reinforced concrete filled steel tubular columns Square steel-reinforced concrete-filled steel tubular column Steel reinforced concrete Sustained loads
DOI	10.1016/j.engstruct.2022.114464
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Civil
WOS记录号	WOS:000817950700003
出版者	Elsevier Ltd
EI入藏号	20222212185620
EI主题词	Finite element method
EI分类号	408 Structural Design ; 408.1 Structural Design, General ; 408.2 Structural Members and Shapes ; 412 Concrete ; 723.5 Computer Applications ; 921 Mathematics ; 921.6 Numerical Methods ; 951 Materials Science
来源库	WOS
引用统计	被引频次：7[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/158467
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.Lanzhou Univ Technol, Western Ctr Disaster Mitigat Civil Engn, Minist Educ, Lanzhou 730050, 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	Jia, Zhi-Lu,Wang, Wen-Da,Shi, Yan-Li,et al. Performance of steel-reinforced concrete-filled square steel tubular members under sustained axial compression loading[J]. Engineering Structures,2022,264.
APA	Jia, Zhi-Lu,Wang, Wen-Da,Shi, Yan-Li,&Xian, Wei.(2022).Performance of steel-reinforced concrete-filled square steel tubular members under sustained axial compression loading.Engineering Structures,264.
MLA	Jia, Zhi-Lu,et al."Performance of steel-reinforced concrete-filled square steel tubular members under sustained axial compression loading".Engineering Structures 264(2022).