Experimental study on dynamic response of debris flow dam with braces under impact loads

doi:10.13465/j.cnki.jvs.2015.18.014

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Experimental study on dynamic response of debris flow dam with braces under impact loads
	Li, Jun-Jie 1,2; Wang, Xiu-Li 1,2; Zhu, Yan-Peng 1,2; Luo, Wei-Gang 1,2; Liang, Ya-Xiong 1,2; Wu, Chang 1,2
刊名	Zhendong yu Chongji/Journal of Vibration and Shock
	2015-09-28
卷号	34 期号:18 页码:79-86 and 105
关键词	Debris Disaster prevention Dynamic response Combined structure Debris flows Dynamic constitutive model Dynamic displacements Impact experiment Prevention and controls Solid mechanics Structural stiffness
ISSN号	10003835
DOI	10.13465/j.cnki.jvs.2015.18.014
英文摘要	Debris flow dams can intercept solid matter contained in debris flow and cut down the rate and density of discharged debris flow so as to reduce the damages to the downstream by debris flow. This class those of structures has been widely applied to the prevention and control engineering of debris flow disasters at present. A kind of steel-concrete combined structure with steel braces was presented based on the conventional gravity dam structure and the superiority of the new structure in terms of impact resistance was verified by means of contrastive model experiments under solid impact force on the conventional and new-style dams respectively. The results indicate that braces play roles in restraining cracks and reducing their width. They can effectively alleviate the extent of damage in impact areas. Compared with the conventional dam, the dynamic strains and acceleration peak values of the dam with braces both observably reduce. The highest reduction ranges of them may be up to 69.2% and 47.8% respectively, so the deformation and vibration are limited by the braces. The dynamic displacement peak values of the new-style dam are significantly less than those of the conventional dam, and the average reduction range may reach to about 46%, so the structural stiffness has been enhanced to a great extent. ©, 2015, Chinese Vibration Engineering Society. All right reserved.
语种	中文
出版者	Chinese Vibration Engineering Society
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113164]
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; 730050, China
推荐引用方式 GB/T 7714	Li, Jun-Jie,Wang, Xiu-Li,Zhu, Yan-Peng,et al. Experimental study on dynamic response of debris flow dam with braces under impact loads[J]. Zhendong yu Chongji/Journal of Vibration and Shock,2015,34(18):79-86 and 105.
APA	Li, Jun-Jie,Wang, Xiu-Li,Zhu, Yan-Peng,Luo, Wei-Gang,Liang, Ya-Xiong,&Wu, Chang.(2015).Experimental study on dynamic response of debris flow dam with braces under impact loads.Zhendong yu Chongji/Journal of Vibration and Shock,34(18),79-86 and 105.
MLA	Li, Jun-Jie,et al."Experimental study on dynamic response of debris flow dam with braces under impact loads".Zhendong yu Chongji/Journal of Vibration and Shock 34.18(2015):79-86 and 105.