Design and optimisation of a protective device for bridge piers against debris flow impact

doi:10.1007/s10064-020-01793-z

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地灾害与地表过程重点实验室

	Design and optimisation of a protective device for bridge piers against debris flow impact
	Yan Shuaixing 1,4; He Siming 1,2,4; Wang Dongpo 3; Wu Yong 1
刊名	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
	2020
卷号	79 期号:7 页码:3321-3335
关键词	Debris flow Bridge pier Aluminium foam Composite structure Energy absorption
ISSN号	1435-9529
DOI	10.1007/s10064-020-01793-z
产权排序	1
文献子类	Article;Early Access
英文摘要	In Western China, a large number of bridges are located in debris flow gullies and are exposed to a great risk of damage in case of a geological disaster. To ensure the safety of the bridge and extend its service period, in this study, we propose a modular protective device for bridge piers against the impact of debris flow, especially large boulders. The device is composed of a set of independent modules in the form of a closed-cell aluminium foam-filled composite structure (AFCS) that are set at predetermined spacings and fixed by prestressed steel fasteners. The mechanical behaviour and energy absorption characteristics of five AFCS configurations were evaluated by quasi-static compression testing using both experimental and numerical modelling methods, which produced similar results. The two-layer foam-filled lattice structure AFCS05 exhibited the best comprehensive energy absorption performance, and the effects of the material and geometric parameters on the performance were investigated based on the validated finite element models. A prototype protective device based on the AFCS05 design was attached to a model bridge pier. The dynamic response of the prototype indicated that the device prolonged the impact duration and reduced the largest impact force by 84.89%, and absorbed 81.96% of the impact kinetic energy, which effectively protected the pier. The device design and production can be standardised, making it convenient for installation and on-site repair.
电子版国际标准刊号	1435-9537
资助项目	Major Program of the National Natural Science Foundation of China[41790433] ; National Natural Science Foundation of China[41772312] ; National Natural Science Foundation of China-International Centre for Integrated Mountain Development (NSFCICIMOD) Collaborative Project[41661144041]
WOS关键词	ALUMINUM-FOAM ; ENERGY-ABSORPTION ; PERFORMANCE ; BEHAVIOR ; SIZE
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000525331000001
资助机构	Major Program of the National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China-International Centre for Integrated Mountain Development (NSFCICIMOD) Collaborative Project
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/34115]
专题	成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
通讯作者	He Siming
作者单位	1.Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; 2.CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing 100081, China; 3.State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu niversity of Technology, Chengdu 610059, China 4.University of Chinese Academy of Sciences, Beijing 100049, China;
推荐引用方式 GB/T 7714	Yan Shuaixing,He Siming,Wang Dongpo,et al. Design and optimisation of a protective device for bridge piers against debris flow impact[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2020,79(7):3321-3335.
APA	Yan Shuaixing,He Siming,Wang Dongpo,&Wu Yong.(2020).Design and optimisation of a protective device for bridge piers against debris flow impact.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,79(7),3321-3335.
MLA	Yan Shuaixing,et al."Design and optimisation of a protective device for bridge piers against debris flow impact".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 79.7(2020):3321-3335.