Diagnostic evaluation of in-service railway concrete bridge with over-weighed loading | |
Di, Shengkui2; Xiang, Changsheng2; Lie, Wenbin1; Li, Hui2; Du, Yongfeng2 | |
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:. |
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