Monitoring and repair of an impact damaged prestressed bridge
Files in This Item:
|ICE Bridgefinal submission 290611 text only.pdf||153.35 kB||Adobe PDF||Download|
|Title:||Monitoring and repair of an impact damaged prestressed bridge||Authors:||Pakrashi, Vikram
|Permanent link:||http://hdl.handle.net/10197/10424||Date:||Mar-2013||Online since:||2019-05-13T12:16:53Z||Abstract:||This paper details the monitoring and repair of an impact damaged prestressed concrete bridge. The repair was required following an impact from a low-loader carrying an excavator while passing underneath the bridge. The repair was carried out by preloading the bridge in the vicinity of the damage to relieve some prestressing. This preload was removed following the hardening and considerable strength gain of the repair material. The true behaviour of damaged prestressed concrete bridges during repair is difficult to estimate theoretically due to a lack of benchmarking and inadequacy of assumed damage models. A network of strain gauges at locations of interest was thus installed during the entire period of repair. Effects of various activities were qualitatively and quantitatively observed. The interaction and rapid, model-free calibration of damaged and undamaged beams, including identification of damaged gauges, were also probed. This full-scale experiment is expected to be of interest and benefit to the practising engineer and the researcher alike.||Type of material:||Journal Article||Publisher:||ICE Publishing||Journal:||Proceedings of the Institution of Civil Engineers: Bridge Engineering||Volume:||166||Issue:||1||Start page:||16||End page:||29||Copyright (published version):||2013 ICE Publishing||Keywords:||Maintenance and inspection; Beams and girders; Failures; Field testing and monitoring; Strength and testing of materials; Concrete structures||DOI:||10.1680/bren.10.00057||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||Mechanical & Materials Engineering Research Collection|
Show full item record
This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.