Confederation Bridge Pot Bearing Monitoring and Assessment
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Bibliographic Details
| Author(s): |
Donald J. McGinn
(Strait Crossing Bridge Limited, Borden-Carleton, PE, Canada)
Parinaz Pakniat (Canam Bridges, Montreal, QC, Canada) John Newhook (Dalhousie University, Halifax, NS, Canada) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Conference: Engineering the Past, to Meet the Needs of the Future, Copenhagen, Denmark, 25-27 June 2018 | ||||
| Published in: | IABSE Conference Copenhagen 2018 | ||||
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| Page(s): | 337-343 | ||||
| Total no. of pages: | 7 | ||||
| DOI: | 10.2749/copenhagen.2018.337 | ||||
| Abstract: |
The 12.9km long Confederation Bridge, connecting Prince Edward Island with mainland New Brunswick, Canada, utilizes 162 pot bearings to accommodate movement. Some bearings have been instrumented for up to 20 years to study displacement demands and bearing response under traffic, daily thermal cycles, seasonal thermal cycles, and during extreme wind events and temperatures of -20C. The effect of bearing response while sea ice crushes against bridge piers is also assessed. In 2017, two pot bearings were removed from service and each component was thoroughly assessed. Besides wear of the PTFE, the remaining service life of the bearing is estimated at least another 20 years. |
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| Keywords: |
PTFE Confederation Bridge pot bearing
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