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Monitoring and repair of an impact damaged prestressed bridge
Author(s)
Date Issued
2013-03
Date Available
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
Language
English
Status of Item
Peer reviewed
ISSN
1478-4637
This item is made available under a Creative Commons License
File(s)
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Name
ICE Bridgefinal submission 290611 text only.pdf
Size
153.35 KB
Format
Adobe PDF
Checksum (MD5)
3f34cd9e2eedf88a58a1fefa5cb60a3f
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