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

doi:10.1016/j.engstruct.2022.114464

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	Performance of steel-reinforced concrete-filled square steel tubular members under sustained axial compression loading
	Jia, Zhi-Lu 1; Wang, Wen-Da 1,2; Shi, Yan-Li 1,2; Xian, Wei 1,2
刊名	Engineering Structures
	2022-08-01
卷号	264
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
ISSN号	0141-0296
DOI	10.1016/j.engstruct.2022.114464
英文摘要	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
WOS研究方向	Engineering
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000817950700003
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158467]
专题	土木工程学院
作者单位	1.School of Civil Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Western Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou; 730050, China
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).