Diagnostic evaluation of in-service railway concrete bridge with over-weighed loading

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Diagnostic evaluation of in-service railway concrete bridge with over-weighed loading
	Di, Shengkui 2; Xiang, Changsheng 2; Lie, Wenbin 1; Li, Hui 2; Du, Yongfeng 2
	2007
关键词	over weight loads in-Service concrete railway bridges field test diagnosis and evaluation nondestructive test
页码	284-+
英文摘要	In this paper there are 12 railway bridges which were built about 50 years ago and had to transport 2 000 kN overweight loads. A utter field test was successfully implemented on site to evaluate whether the old bridges can suffer the over-weight loads. The methods which rely on the logical combination of visual inspection results such as foil strain gauges, ultrasonic scanning, accelerometers, static test, dynamic test system and related nondestructive test ways et al. were jointly adopted to assess and classify the residual life and reliability of the bridges. Base on in-situ test data the working-condition of the bridges were analyzed according to the flexibility-plasticity theory. The field test results of strain, stress and frequency were compared with the calculation results. The residual capacity of the every bridge and feasibility of carrying the overweight equipment were evaluated. A plan was developed for the owner to make a critical decision of permanent maintaining, temporary strengthening or monitoring and inspection frequent to these bridges.
会议录	PROCEEDINGS OF INTERNATIONAL CONFERENCE ON HEALTH MONITORING OF STRUCTURE, MATERIALS AND ENVIRONMENT, VOLS 1 AND 2
会议录出版者	SOUTHEAST UNIV PRESS
会议录出版地	2 SIPAILOU, NANJING 210096, PEOPLES R CHINA
语种	英语
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science ; Transportation
WOS记录号	WOS:000251357300039
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/38198]
专题	土木工程学院
通讯作者	Di, Shengkui
作者单位	1.Jinchuan Grp Ltd, Jinchang 737100, Peoples R China 2.LanZhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Di, Shengkui,Xiang, Changsheng,Lie, Wenbin,et al. Diagnostic evaluation of in-service railway concrete bridge with over-weighed loading[C]. 见:.