Well Road Project - Florida International Universityutcdb.fiu.edu/LA 3249-Well Road...
Transcript of Well Road Project - Florida International Universityutcdb.fiu.edu/LA 3249-Well Road...
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Well Road Project – Accelerated Bridge Construction Using Self-Propelled
Modular Transporters (SPMT’s)
By: Mark Bucci, P.E.
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Presentation Outline
Project History Project Scope Construction Alternatives Plan Development Contractor’s Methodology Current Project Status
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Project History
Site Information◦ West Monroe, LA◦ LA 3249 (Well Road) over I-20
Well Road Overpass
Truck Stop
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Project History
Site Information◦ High Average Daily Traffic (ADT) I-20 41,300 ADT LA 3249 (Well Road) 18,700 ADT
◦ High truck traffic
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Project History
Existing Bridge◦ Built in 1963◦ 4 – Simple Span Composite Steel Plate Girder
Bridge (55 ft – 70 ft – 85 ft – 50 ft)◦ Lightweight concrete deck
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Project History
Bridge Condition◦ Deck Deterioration
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Project History◦ Deck Deterioration
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Project History◦ Deck Deterioration
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Project History Bridge Condition◦ Bearing Corrosion
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Project History◦ Bearing Corrosion (Cont.)
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Project History
Bridge Condition◦ Column Bent Spalling
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Project History Bridge Load Testing (March 2008)◦ Bridge Diagnostics, Inc. (BDI) performed the
testing◦ Determine the structural capacity considering
deck deterioration◦ Review the load rating◦ Provide information to assist in determining
the best course of action for rehabilitation
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Project History
Bridge Load Testing
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Project History
Bridge Load Testing◦ Finite Element Model Calibrated to match the test results The structure was load rated
◦ Results The bridge did not need to be load posted An overlay could be applied
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Project History
Temporary Repairs◦ Quick Set Concrete Patches
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Project History
Temporary Repairs◦ Asphalt Overlay Recommended by the District to reduce
maintenance
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Presentation Outline
Project History Project Scope Construction Alternatives Plan Development Contractor’s Methodology Current Project Status
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Project Scope
Project created in mid 2008 to perform permanent repairs
Funded by State Surplus
Aggressive delivery schedule
Proposed July 2009 letting
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Project Scope
Requirements◦ Replace the deck◦ Minimize impacts to
businesses and the traveling public◦ Maintain vertical
clearance◦ Strengthen
substructure if necessary
Considerations◦ High ADT◦ Heavy Truck Traffic◦ Future widening
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Accelerated Construction
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Presentation Outline
Project History Project Scope Construction Alternatives Plan Development Contractor’s Methodology Current Project Status
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Construction Alternatives
Accelerated Construction◦ Precast Panel Units
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Construction Alternatives
Accelerated Construction◦ Precast Panel Units
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Construction Alternatives
Accelerated Construction◦ Span Replacement
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Construction Alternatives
Accelerated Construction◦ Span Replacement Self-Propelled Modular Transporters (SPMT’s)
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Construction Alternatives
Accelerated Construction◦ Span Replacement Self-Propelled Modular Transporters (SPMT’s)
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Construction Alternatives
Accelerated Construction◦ Span Replacement Crane
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Construction Alternatives
Accelerated Construction◦ Recommend span replacement Reduce traffic impacts
Limit overall closure period
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Presentation Outline
Project History Project Scope Construction Alternatives Plan Development Contractor’s Methodology Current Project Status
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Plan Development
Project Initiation◦ Task order was created with Modjeski and
Masters (NTP issued July 2008) Design and develop plans for the new steel girder
spans with a concrete deck Load rate the repaired bridge Develop plans to strengthen the substructure if
necessary Establish constructability Traffic control plan
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Plan Development
Steel Girder Replacement Spans◦ 28’ clear roadway
◦ Weathering steel rolled W-shape girders
◦ Girders to be composite with deck
◦ 7 ½” thick concrete deck
◦ Epoxy coated deck steel
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Plan Development
Steel Girder Spans
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Plan Development
Bridge Load Rating◦ Existing bridge was designed using the HS-20
truck
◦ The rating showed that the substructure required strengthening using LRFR (HL-93 truck)
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Plan Development
Substructure Strengthening◦ A spread footing was added between the
existing pile footings of column bents
◦ Drilled shafts were added to the existing end bents
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Plan Development
Substructure Strengthening◦ Column Bent Spread Footing
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Plan Development
Substructure Strengthening◦ End Bent Strengthening (Drilled Shafts)
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Plan Development
Suggested Method of Construction◦ Construct spans in a staging area◦ Move the spans using SPMT’s Replace the spans over four consecutive nightly
closures from 7:00 PM to 7:00 AM Replace all four spans over a weekend closure
beginning at 7:00 PM Friday and re-opening the bridge at 7:00 AM the following Monday
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Plan Development
Suggested Method of Construction
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Plan Development
Suggested Method of Construction
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Plan Development
Suggested Method of Construction
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Plan Development
Prefabrication Plan◦ Geotechnical assessment◦ Design of temporary supports◦ Settlement analysis and monitoring
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Plan Development
Movement Plan◦ As-built survey◦ Moving equipment◦ Path of movement◦ Lift point locations ◦ Analysis of temporary loads on spans◦ Geotechnical assessment◦ Span monitoring◦ Contingency planning
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Plan Development
Span Monitoring◦ 10 – Elevation reference points per span◦ Monitoring Intervals Before Lift Immediately After Lift As needed through transport to maintain relative
elevations Final Position
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Plan Development
Traffic Control Plan
Road Closed
Road Closed
Temporary Detour
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Plan Development
Traffic Control Plan◦ Temporary Detour Road
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Plan Development
Traffic Control Plan
Project Site
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Plan Development
Project was let in December 2009◦ Engineer’s Estimate $3.95 Million
◦ Contractor’s Bid Price $ 3.17 Million
◦ Awarded to Gibson and Associates
◦ Work Order issued March 2010
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Presentation Outline
Project History Project Scope Construction Alternatives Plan Development Contractor’s Methodology Current Project Status
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Contractor’s Methodology
Staging area within the interchange
Temporary steel pipe trestle
SPMT’s to move the spans
Perform the moves over a weekend closure
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Contractor’s Methodology
Staging Area and Movement Path
Staging Area
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Contractor’s Methodology
Temporary Support
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Contractor’s Methodology
Temporary Support
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Contractor’s Methodology
Movement Method
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Contractor’s Methodology
Movement Method
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Presentation Outline
Project History Project Scope Construction Alternatives Plan Development Contractor’s Methodology Current Project Status
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Current Project Status
Substructure Strengthening
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Current Project Status
Substructure Strengthening
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Current Project Status
Substructure Strengthening
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Current Project Status
Span Construction
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Current Project Status
Span Movement◦ Span movement plan is currently under
review
◦ Span movement is tentatively scheduled for early February 2011
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The End