Condition Assessment and Renewal Options Analysis for the Queensborough Bridge
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Détails bibliographiques
| Auteur(s): |
Casey Leggett
(Mott MacDonald Canada Limited, Vancouver, BC, Canada)
Tony Martin (Mott MacDonald Canada Limited, Vancouver, BC, Canada) Kevin Friesen (Hatch, Vancouver, BC, Canada) |
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Symposium: Engineering the Future, Vancouver, Canada, 21-23 September 2017 | ||||
| Publié dans: | IABSE Symposium Vancouver 2017 | ||||
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| Page(s): | 2512-2519 | ||||
| Nombre total de pages (du PDF): | 8 | ||||
| Année: | 2017 | ||||
| DOI: | 10.2749/vancouver.2017.2512 | ||||
| Abstrait: |
The 41 span, 920m long Queensborough Bridge, constructed in 1960, provides a strategic daily link for 90,000 vehicles over the north arm of the Fraser River connecting New Westminster, BC. The Owner, the BC Ministry of Transportation (Ministry), initiated an in-depth scoping study to assess its current condition, as well as identify and analyze renewal treatment options to enable them to make informed decisions on managing the asset. The importance of limiting user delays was essential when evaluating potential treatment options. Multiple options for rehabilitation of the concrete deck as well as encapsulation and recoating scenarios for the steel girder coating was investigated. Life cycle cost analysis and conceptual traffic staging strategies were prepared. A qualitative assessment matrix, accounting for economics, traffic disruption and risk, was an effective tool in understanding, evaluating, and conveying recommendations. |
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