Experimental and numerical study on the dynamic response of steel-reinforced concrete composite members under lateral impact

doi:10.1016/j.tws.2021.108477

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Experimental and numerical study on the dynamic response of steel-reinforced concrete composite members under lateral impact
	Zhu, Xiang 1; Zhang, Qi 2; Zhang, Dongjie 3; Du, Yongfeng 4; Zhang, Qiang 1
刊名	THIN-WALLED STRUCTURES
	2021-12
卷号	169
关键词	Steel reinforced concrete (SRC) Impact load resistance Dynamic performance Finite element analysis Failure mode
ISSN号	0263-8231
DOI	10.1016/j.tws.2021.108477
英文摘要	This paper investigates the dynamic response of steel-reinforced concrete (SRC) composite members under lateral impact using experimental and numerical studies. A total of 11 specimens composed of structural steel encased in reinforced concrete were tested under drop hammer impacts. The dynamic responses of SRC members including damage observations, impact force, and mid-span displacement were obtained and analyzed with emphasis on the effect of impact velocity, boundary condition, and axial load. It was found that the specimens failed in a shear-flexural response and impact velocity played a significant role in determining the dynamic response of SRC members. It was also found that the amount of residual displacement was linearly proportioned to the displacement ductility. Followed by the experimental study, a finite element analysis (FEA) model was established and verified based on the test results. The distributions of impact energy among different components are obtained using FEA models. It was found that the energy dissipation was dominated by concrete rather than structural steel or reinforcement. However, with the increase in impact energy, the percentage of energy dissipation in the structural steel increases, meaning that encasing structural steel in concrete elements is an effective method to improve impact resistance.
WOS研究方向	Engineering ; Mechanics
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000707883100005
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/149976]
专题	土木工程学院
作者单位	1.Shanxi Univ, Sch Elect Power Civil Engn & Architecture, Taiyuan 030013, Shanxi, Peoples R China; 2.British Columbia Inst Technol, Dept Civil Engn, Burnaby, BC V5G 3H2, Canada; 3.Taiyuan Univ Technol, Coll Civil Engn, Taiyuan 030024, Peoples R China; 4.Lanzhou Univ Technol, Inst Earthquake Prevent & Disaster Reduct, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Xiang,Zhang, Qi,Zhang, Dongjie,et al. Experimental and numerical study on the dynamic response of steel-reinforced concrete composite members under lateral impact[J]. THIN-WALLED STRUCTURES,2021,169.
APA	Zhu, Xiang,Zhang, Qi,Zhang, Dongjie,Du, Yongfeng,&Zhang, Qiang.(2021).Experimental and numerical study on the dynamic response of steel-reinforced concrete composite members under lateral impact.THIN-WALLED STRUCTURES,169.
MLA	Zhu, Xiang,et al."Experimental and numerical study on the dynamic response of steel-reinforced concrete composite members under lateral impact".THIN-WALLED STRUCTURES 169(2021).