Experimental study on impact resistance of reinforced conceret columns strengthened with steel jackets

doi:10.6052/j.issn.1000-4750.2014.11.0991

	Experimental study on impact resistance of reinforced conceret columns strengthened with steel jackets
	Zhu, Xiang 1; Lu, Xin-Zheng 2; Du, Yong-Feng 1; Ye, Lie-Ping 2
刊名	Gongcheng Lixue/Engineering Mechanics
	2016-06-01
卷号	33 期号:6 页码:23-33
关键词	ABAQUS Finite element method High speed cameras Impact resistance Impact testing Strengthening (metal) Drop hammer test machine Dynamic finite element Finite element software Mid-span displacements Reinforced concrete column Resistance analysis Simulated results Specific location
ISSN号	10004750
DOI	10.6052/j.issn.1000-4750.2014.11.0991
英文摘要	To improve the impact resistance of structural columns, two series of Reinforced Concrete (RC) columns and RC columns strengthened with steel jackets under different axial compression ratios were designed and experimentally studied. The experiments were performed by using the DHR-9401 drop hammer test machine. The impact resistances of RC columns and RC columns strengthened with steel jackets were compared. The force sensors, high-speed camera and strain gages were used to record data such as the time history curves of impact loads, axial forces, mid-span displacement and strain in specific locations. Three nonlinear dynamic finite element software packages (i.e., MSC.Marc, ABAQUS and ANSYS/LS-DYNA) were adopted to simulate the dynamic behavior of RC columns and RC columns strengthened with steel jackets. Results show that the impact resistances of the RC columns strengthened with steel jackets are significantly stronger than those of the RC columns. Therefore, RC columns strengthened with steel jackets are a feasible impact strengthening measure. The simulated results of ABAQUS were the best agreeing with experiment results, followed by MSC.Marc and ANSYS/LS-DYNA. ANSYS/LS-DYNA was found to well simulate the entire impact failure process of RC columns, which was difficult to achieve by the other two software packages. The outcomes can assist in providing impact resistance measures for the strengthening design of large railway stations subjected to derailed trains, and offering reference for selecting suitable finite element software package for impact resistance analysis. © 2016, 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/113025]
专题	电气工程与信息工程学院土木工程学院
作者单位	1.Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China; 2.Department of Civil Engineering, Tsinghua University, Beijing; 100084, China
推荐引用方式 GB/T 7714	Zhu, Xiang,Lu, Xin-Zheng,Du, Yong-Feng,et al. Experimental study on impact resistance of reinforced conceret columns strengthened with steel jackets[J]. Gongcheng Lixue/Engineering Mechanics,2016,33(6):23-33.
APA	Zhu, Xiang,Lu, Xin-Zheng,Du, Yong-Feng,&Ye, Lie-Ping.(2016).Experimental study on impact resistance of reinforced conceret columns strengthened with steel jackets.Gongcheng Lixue/Engineering Mechanics,33(6),23-33.
MLA	Zhu, Xiang,et al."Experimental study on impact resistance of reinforced conceret columns strengthened with steel jackets".Gongcheng Lixue/Engineering Mechanics 33.6(2016):23-33.