Rehabilitation of St. Marys Wycliffe Bridge in British Columbia, … · 2019-03-04 · 2013 OCTOBER...
Transcript of Rehabilitation of St. Marys Wycliffe Bridge in British Columbia, … · 2019-03-04 · 2013 OCTOBER...
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2013 OCTOBER 01
2ND INTERNATIONAL CONFERENCE ON TIMBER BRIDGES 1
Rehabilitation of St. Marys Wycliffe Bridge in British Columbia, Canada
2nd International Conference on Timber Bridges Las Vegas, Nevada
2013 Sep 30 – Oct 02
Murray M. Johnson, P.Eng., PE
Buckland & Taylor Ltd.
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Existing Bridge
2013 OCTOBER 01
2ND INTERNATIONAL CONFERENCE ON TIMBER BRIDGES 2
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Existing Bridge
2013 OCTOBER 01
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Existing Bridge
2013 OCTOBER 01
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Howe Truss Detail
2013 OCTOBER 01
2ND INTERNATIONAL CONFERENCE ON TIMBER BRIDGES 5
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Existing Bridge
2013 OCTOBER 01
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Inspection: Deck Level Deterioration
2013 OCTOBER 01
2ND INTERNATIONAL CONFERENCE ON TIMBER BRIDGES 7
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Inspection: Deck Level Deterioration
2013 OCTOBER 01
2ND INTERNATIONAL CONFERENCE ON TIMBER BRIDGES 8
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Inspection: Deck Level Deterioration
2013 OCTOBER 01
2ND INTERNATIONAL CONFERENCE ON TIMBER BRIDGES 9
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Inspection: Deck Level Deterioration
2013 OCTOBER 01
2ND INTERNATIONAL CONFERENCE ON TIMBER BRIDGES 10
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Inspection: Deck Level Deterioration
2013 OCTOBER 01
2ND INTERNATIONAL CONFERENCE ON TIMBER BRIDGES 11
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Inspection: Deck Level Deterioration
2013 OCTOBER 01
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Inspection: Deck Level Deterioration
2013 OCTOBER 01
2ND INTERNATIONAL CONFERENCE ON TIMBER BRIDGES 13
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Inspection: Queenpost Truss Deterioration
2013 OCTOBER 01
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Inspection: Queenpost Truss Deterioration
2013 OCTOBER 01
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Inspection: Queenpost Truss Deterioration
2013 OCTOBER 01
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Inspection: Substructure Deterioration
2013 OCTOBER 01
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Inspection: Substructure Deterioration
2013 OCTOBER 01
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Inspection: Substructure Deterioration
2013 OCTOBER 01
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Inspection: Substructure Deterioration
2013 OCTOBER 01
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Inspection: South Slope Movement
2013 OCTOBER 01
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Inspection: South Slope Movement
2013 OCTOBER 01
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Inspection: South Slope Movement
2013 OCTOBER 01
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Inspection: Howe Truss
2013 OCTOBER 01
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Inspection: Howe Truss
2013 OCTOBER 01
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Inspection: Main Piers
2013 OCTOBER 01
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Inspection: Main Piers
2013 OCTOBER 01
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Bridge Rehabilitation Design
2013 OCTOBER 01
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Required:
Double load limit to 36 tonnes
Pedestrians and cyclists to share roadway
Drastically reduce maintenance requirements
Mitigate south slope movement problem
Solution:
Remove entire deck and barrier system
Keep main Howe truss span (55m), from floorbeams down
Keep existing concrete piers
Remove both queenpost spans and all trestle spans
Build new concrete abutments and new north bent
New 28 m and 18m/18m glulam girder spans
Select truss strengthening
Complete new deck system and crash-rated barriers, cyclist height
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Bridge Rehabilitation Design
2013 OCTOBER 01
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New Cross-section: Howe Truss Span
2013 OCTOBER 01
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New Cross-section: Glulam Girder Approach Spans
2013 OCTOBER 01
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New Deck System
2013 OCTOBER 01
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New Crash-rated Barrier (cyclist height)
2013 OCTOBER 01
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Construction
2013 OCTOBER 01
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Construction
2013 OCTOBER 01
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Supplemental Floorbeams
2013 OCTOBER 01
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Ready for Deck
2013 OCTOBER 01
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North Glulam Spans
2013 OCTOBER 01
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Construction
2013 OCTOBER 01
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Stringer Installation
2013 OCTOBER 01
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Decking
2013 OCTOBER 01
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Glulam Girders
2013 OCTOBER 01
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Glulam Spans
2013 OCTOBER 01
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Truss Rehabilitation & Strengthening
2013 OCTOBER 01
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Truss Rehabilitation & Strengthening
2013 OCTOBER 01
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Truss Rehabilitation & Strengthening
2013 OCTOBER 01
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Truss Rehabilitation & Strengthening
2013 OCTOBER 01
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Truss Rehabilitation & Strengthening
2013 OCTOBER 01
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Completed Bridge
2013 OCTOBER 01
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Completed Bridge
2013 OCTOBER 01
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Completed Bridge: Barriers
2013 OCTOBER 01
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Completed Bridge
2013 OCTOBER 01
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Completed Bridge
2013 OCTOBER 01
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2013 OCTOBER 01
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Thank You For Your Attention Questions?