Analysis on axial compressive bearing capacity of circular concrete-filled steel tubular stub columns with internal profiled steel under different steel ratio

doi:10.6052/j.issn.1000-4750.2016.03.S004

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Analysis on axial compressive bearing capacity of circular concrete-filled steel tubular stub columns with internal profiled steel under different steel ratio
	Mao, Wen-Jing; Shi, Yan-Li; Wang, Wen-Da
刊名	Gongcheng Lixue/Engineering Mechanics
	2017-06-01
卷号	34 页码:63-70
关键词	ABAQUS Axial compression Bearing capacity Columns (structural) Loads (forces) Stress-strain curves Tubular steel structures Axial compressive bearing capacities Axial compressive load Axial-compressive stress Concrete-filled steel tubular Confinement coefficients Load-bearing capacity Steel ratio Stub columns
ISSN号	10004750
DOI	10.6052/j.issn.1000-4750.2016.03.S004
英文摘要	This paper presents a finite element (FE) model of concrete filled steel tubular (CFST) stub columns with internal profiled steel under axial compressive load using ABAQUS. The FE model was verified by experimental results in the literature. The mechanical behavior of CFST stub columns with internal profiled steel was analyzed by dividing the total sectional steel into steel tube and the internal profiled steel. The load distribution between different components of the column and the axial compressive stress-strain curves were calculated and compared with those of the CFST columns without internal profiled steel. The influence on load-bearing capacity of the steel ratios in the steel tube and internal steel under the same total steel ratio was investigated, and quantitative analyses were conducted by amplification factor IdexNc of load-bearing capacity and amplification index IdexNs of load-bearing capacity of CFST stub columns with internal profiled steel. The load-bearing capacity of CFST stub columns with internal profiled steel is lower than CFST columns without internal steel in general, and the ratio of steel tube is a factor that significantly influences the load-bearing capacity. The results show that the ratio of the outer steel tube should be no less than 60% of the total steel ratio. © 2017, Engineering Mechanics Press. All right reserved.
语种	中文
出版者	Tsinghua University
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114411]
专题	土木工程学院附属中学
作者单位	Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China
推荐引用方式 GB/T 7714	Mao, Wen-Jing,Shi, Yan-Li,Wang, Wen-Da. Analysis on axial compressive bearing capacity of circular concrete-filled steel tubular stub columns with internal profiled steel under different steel ratio[J]. Gongcheng Lixue/Engineering Mechanics,2017,34:63-70.
APA	Mao, Wen-Jing,Shi, Yan-Li,&Wang, Wen-Da.(2017).Analysis on axial compressive bearing capacity of circular concrete-filled steel tubular stub columns with internal profiled steel under different steel ratio.Gongcheng Lixue/Engineering Mechanics,34,63-70.
MLA	Mao, Wen-Jing,et al."Analysis on axial compressive bearing capacity of circular concrete-filled steel tubular stub columns with internal profiled steel under different steel ratio".Gongcheng Lixue/Engineering Mechanics 34(2017):63-70.