Experimental Research on the Local Axial Compression Performance of Concrete Filled Weathering Steel Tubular Stub Columns

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	Experimental Research on the Local Axial Compression Performance of Concrete Filled Weathering Steel Tubular Stub Columns
	Zeng, Zaiping 1; Wang, Xiuli 1; Feng, Zhujun 1; Yang, Hong 2; Sheng, Liang 2; Li, Jie 2; Hu, Zhiming 3
刊名	Journal of Railway Engineering Society
	2021
卷号	38 期号:1 页码:76-83
关键词	ABAQUS Axial compression Bearing capacity Bearings (machine parts) Bridge piers Compressive strength Concretes Finite element method Piers Steel bridges Steel research Tubes (components) Tubular steel structures Weathering Compression performance Compressive performance Concrete filled steel tube Design and application Experimental research Lateral confinement Longitudinal shear Mechanical behavior
ISSN号	1006-2106
英文摘要	Research purposes: The application of weathering steel without coating in bridge is more and more widely. The weather concrete-filled steel tube pier usually appears local compression load. In order to study the mechanical behavior of concrete-filled rectangular weathering steel tubular stub columns under the local axial compression, this paper carried out 3 concrete-filled weathering steel tubular stub columns experiments. The finite element (ABAQUS) method is used to analyze the concrete- filled weathering steel tubular stub columns. The influence of local compressive area ratio, steel ratio, concrete strength and weathering steel tube strength on axial local compressive performance of concrete-filled rectangular weathering steel tubular stub columns is evaluated by combining the experiment and finite element method. Research conclusions:(1) When the steel rate is less than 0.14, with the increase of the weathering steel tube thickness, the local pressure bearing capacity and stiffness have a great increase by the lateral confinement of weathering steel tubes. When the steel rate is greater than 0.14, the continuous increase of the steel tube thickness has no obvious effect on the improvement of the local pressure bearing capacity. With the increase of steel tube thickness, the transfer length of longitudinal shear at concrete-filled steel tube interface becomes longer. (2)The regression analysis of the parameters shows that local compressive area ratio, core concrete strength and steel ratio are important parameters affecting the local bearing capacity, while the steel strength has little influence on the local bearing capacity. (3)The simplified formula for calculating the local bearing capacity of a short concrete filled weathering steel tubular column is presented. (4) The research results can provide technical support for the design and application of concrete filled weathering steel tube piers of elevated bridges. © 2021, Editorial Department of Journal of Railway Engineering Society. All right reserved.
语种	中文
出版者	Editorial Department of Journal of Railway Engineering Society
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148380]
专题	土木工程学院
作者单位	1.Lanzhou University of Technology, Lanzhou; 730050, China; 2.China Railway Construction 20th Group Municipal Engineering Co. Ltd, Lanzhou; 730030, China; 3.Gansu Vocational College of Architecture, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Zeng, Zaiping,Wang, Xiuli,Feng, Zhujun,et al. Experimental Research on the Local Axial Compression Performance of Concrete Filled Weathering Steel Tubular Stub Columns[J]. Journal of Railway Engineering Society,2021,38(1):76-83.
APA	Zeng, Zaiping.,Wang, Xiuli.,Feng, Zhujun.,Yang, Hong.,Sheng, Liang.,...&Hu, Zhiming.(2021).Experimental Research on the Local Axial Compression Performance of Concrete Filled Weathering Steel Tubular Stub Columns.Journal of Railway Engineering Society,38(1),76-83.
MLA	Zeng, Zaiping,et al."Experimental Research on the Local Axial Compression Performance of Concrete Filled Weathering Steel Tubular Stub Columns".Journal of Railway Engineering Society 38.1(2021):76-83.