7b - udot abc construction - loutvirginiadot.org/.../7b-udot_abc_construction-lout.pdfyudot has 17...
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Presented by: Dr. Paul J. Tikalsky, P.E. ‐ University of UtahDr. Reid Castrodale, P.E. ‐ Stalite Corporation James McMinimee, P.E.‐UDOT Director,Project DevelopmentLouis N. Triandafilou, P.E. ‐ FHWA Resource Center
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What is ABCBenefits of ABCElements of ABCWhy use ABCUDOT ABC HistoryPast ProjectsCurrent ProjectsFuture ProjectsLessons Learned
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Innovative methods to decrease bridge construction timeBuild elements offsite/outside of traffic areaTransport to site and install rapidly
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Minimized traffic disruptionImproved work zone safetyImproved product qualitySave $$ in regional commerce
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Family of Innovative ABC Family of Innovative ABC Elements and MethodsElements and Methods
Precast Concrete Elements
Modular Construction
Structure PlacementMethods
Innovative Accelerated
Bridge Construction
Accelerated Geotech
Work
Fast Track Contracting
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Precast Concrete Elements
Abutments
Post-Tensioned
Deck Panels
Post-Tensioned Approach
Slab Panels
Bentcaps (Post-
Tensioned Preferred)
Columns Wingwalls Footings
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Family of Innovative ABC Family of Innovative ABC Elements and MethodsElements and Methods
Modular Construction
Precast Concrete Box
Culvert System
Prefabricated Concrete
Arch
Precast Concrete
Segmental Superstructure
Prefabricated Modular Steel
Bridge Systems
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Structure PlacementMethods
SlidingSystems
Bridge Launching
Self Propelled Modular Transport (SPMT) and
Other Heavy Lift Systems
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Fast Track Contracting
CM/GC or“CM at Risk”
A + B
Design Build
Total Closures
Lane Rental
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• Good business model for agency
• Existing interstate was constructed
• Competition determines the lowest cost
• Contractors select time and method
• Cost of regional impacts ignored
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• Linear relationship
• Cost depends on volume of traffic
• Longer construction duration increase impacts to users
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• Lowest construction cost lowest project cost
• Societal costs minimized
• Political capital
• Public praise
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• First implementations cost more
• Potential for new methods to cost less
• Promise of time savings
• Positive cost‐benefit ratios
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Total Move Time
264
154
122 120 111 100 9281
Highland1st move
Highland2nd move
900 E 700 E 600 E 500 E 300 E 600 ERamp
Includes preparation of site, moving bridge from 1300 East to specific location, skidding, and setting bridge.
Hou
rs
Hours
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UDOT has 17 projects, including 80 bridges total, completed or under construction that utilized ABC
Self Propelled Modular Transports: 4 projects/13 BridgesHalf Thickness Precast Deck Panels: 2 Projects/47 BridgesFull Depth Precast Deck Panels: 8 Projects/11 BridgesPrecast abutments: 1 Project/2 BridgesPrecast bent caps: 1 Project/2 BridgesPrecast voided slabs: 1 Project/2 BridgesSegmental Bridges: 1 Project/1 BridgeHeavy Lift Cranes: 1 Project/1 Bridge
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Deck replacements using precast deck panels
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Construction Year:Total Construction Cost: ABC Construction Cost: Facility User Cost Per Day:Estimated Days Saved:User Savings:Cost Benefit Ratio:
* Project cost does not take into account for traffic control cost savings from traditional to ABC
2004$366,073$10,000*$4,00090$360,00036
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Full superstructure replacement deck precast on steel girdersLifted into place by cranes
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I‐215 over 3900 SouthDeck replacement with precast deck panels
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Construction Year:Total Construction Cost:ABC Construction Cost:Facility User Cost Per Day:Estimated Days Saved:User Savings:Cost Benefit Ratio:
* Project cost does not take into account for traffic control cost savings from traditional to ABC
2004$2,690,965$600,000*$34,00030$1,020,0002
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4500 South over I4500 South over I--215215
Deck precast on steel Deck precast on steel girdersgirders
Moved into place with Moved into place with SPMTSPMT
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Construction Year: Total Construction Cost: ABC Construction Cost: Facility User Cost Per Day: Estimated Days Saved: User Savings: Cost Benefit Ratio:
* Project cost does not take into account for traffic control cost savings from traditional to ABC
2007$7,700,000$900,000*$35,500120$4,260,0005
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I‐84 Bridge Deck ReplacementsUS‐6 Railroad Crossing I‐80 State Street to 1300 East Bridge ReplacementsI‐80 East and Lambs Canyon Bridge ReplacementI‐215 3300 South Bridge Replacement
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Replace deck with precast deck panel on existing steel girdersOverhead power lines limiting crane size and accessReverse curves make fitting panels complexRailroad under structure limits access for workWeber River crossing increases complexity
C-477 C-476
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Replacement of six structures along I‐80Moved to location using SPMTsMoved over final location using skid shoesLowered to final location using climbing jacks
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CM/GC Contract for $103 million CM/GC Contract for $103 million (Engineering Estimate +$97M)(Engineering Estimate +$97M)
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4 Separate Interstate Highway Bridges
2 Weekends in less than 24 hours
No traffic frontage alternative
Design/Build for $9 million, with $640k incentives (Engineering Estimate +$7M)
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Design/Build for $4 million, with $500k Design/Build for $4 million, with $500k incentives (Engineering Estimate $6 Million)incentives (Engineering Estimate $6 Million)
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Engage the industry
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Get Department Leadership CommittedObtain funding for demonstration projectsChange the processStart at concept levelInitiate within central structures design
Use decision support tools for ABC methodsApply synergy of innovative contracting
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Identify a program of projectsPerform scanning toursGet involved nationallyImplement standardizationEducate and communicate within the industry
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Stakeholders' OVERALL Satisfaction With Project Results(1=not satisfied, 7=very satisfied)
5, 2.80%
6, 18.30%
7, 76.10%
1, 0.00%
2, 0.00%
4, 1.40%3, 1.40%
1
2
3
4
5
6
7
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