Vehicle-bridge coupling dynamic response of a box bridge after reinforcement with prestressed CFRP

doi:10.21595/jve.2020.21274

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Vehicle-bridge coupling dynamic response of a box bridge after reinforcement with prestressed CFRP
	Cheng, Xuansheng 2; Cai, Xiangdong 2; Liu, Bo 1; Zhang, Wenting 2
刊名	Journal of Vibroengineering
	2020-11-01
卷号	22 期号:7 页码:1715-1730
关键词	Acceleration Carbon fiber reinforced plastics Graphite fibers VehiclesCarbon fiber reinforced polymer Cfrp reinforcements Different speed Heavy vehicle Post tensioned Vehicle-bridge coupling Vertical accelerations Vertical displacements
ISSN号	13928716
DOI	10.21595/jve.2020.21274
英文摘要	The dynamic response of vehicle bridge coupling before and after strengthening with post-tensioned carbon fiber reinforced polymer (CFRP) is analyzed. To obtain a better dynamic response of vehicle bridge coupling, the theory of vehicle moving load is deduced and transformed. To obtain the dynamic response of the vehicle bridge coupling before and after the post-tensioned CFRP reinforcement, a numerical model of the vehicle bridge coupling before and after the post-tensioned CFRP reinforcement is established, and the vertical acceleration time history curve and vertical displacement time history curve of the 1/4, 1/2, and 3/4 sections of the side span and the middle span of the bridge before and after post-tensioned CFRP reinforcement are obtained under different speeds of heavy vehicles. The results show that with the increase in vehicle speed, the vertical displacement of the bridge has almost no change, but the increase in the vertical acceleration peak value is obvious, which results in a faster arrival of the vertical displacement and the vertical acceleration peak value and also causes the amplitude of the vertical acceleration of the bridge to increase greatly, and the vertical acceleration increase in the side span is significantly larger than that in the middle span. Post-tensioned CFRP can effectively reduce the vertical displacement and acceleration of the bridge, but there are some deficiencies in reducing the vertical displacement of the bridge. With the increase in speed, the effect of the post-tensioned method is better. © 2020 Xuansheng Cheng, et al.
语种	英语
出版者	JVE International
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/132355]
专题	土木工程学院企业单位划归国资委人员
作者单位	1.Western Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou; 730050, China 2.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Cheng, Xuansheng,Cai, Xiangdong,Liu, Bo,et al. Vehicle-bridge coupling dynamic response of a box bridge after reinforcement with prestressed CFRP[J]. Journal of Vibroengineering,2020,22(7):1715-1730.
APA	Cheng, Xuansheng,Cai, Xiangdong,Liu, Bo,&Zhang, Wenting.(2020).Vehicle-bridge coupling dynamic response of a box bridge after reinforcement with prestressed CFRP.Journal of Vibroengineering,22(7),1715-1730.
MLA	Cheng, Xuansheng,et al."Vehicle-bridge coupling dynamic response of a box bridge after reinforcement with prestressed CFRP".Journal of Vibroengineering 22.7(2020):1715-1730.