7b - udot abc construction - loutvirginiadot.org/.../7b-udot_abc_construction-lout.pdfyudot has 17...

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

What is ABCBenefits of ABCElements of ABCWhy use ABCUDOT ABC HistoryPast ProjectsCurrent ProjectsFuture ProjectsLessons Learned

Innovative methods to decrease bridge construction timeBuild elements offsite/outside of traffic areaTransport to site and install rapidly

Minimized traffic disruptionImproved work zone safetyImproved product qualitySave $$ in regional commerce

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

Precast Concrete Elements

Abutments

Post-Tensioned

Deck Panels

Post-Tensioned Approach

Slab Panels

Bentcaps (Post-

Tensioned Preferred)

Columns Wingwalls Footings

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

Structure PlacementMethods

SlidingSystems

Bridge Launching

Self Propelled Modular Transport (SPMT) and

Other Heavy Lift Systems

Fast Track Contracting

CM/GC or“CM at Risk”

A + B

Design Build

Total Closures

Lane Rental

• Good business model for agency

• Existing interstate was constructed

• Competition determines the lowest cost

• Contractors select time and method

• Cost of regional impacts ignored

• Linear relationship

• Cost depends on volume of traffic

• Longer construction duration       increase impacts to users

• Lowest construction cost        lowest project cost

• Societal costs minimized

• Political capital

• Public praise

• First implementations cost more

• Potential for new methods to cost less

• Promise of time savings

• Positive cost‐benefit ratios

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

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

Deck replacements using precast deck panels

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

Full superstructure replacement deck precast on steel girdersLifted into place by cranes

I‐215 over 3900 SouthDeck replacement with precast deck panels

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

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

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

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

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

Replacement of six structures along I‐80Moved to location using SPMTsMoved over final location using skid shoesLowered to final location using climbing jacks

CM/GC Contract for $103 million CM/GC Contract for $103 million (Engineering Estimate +$97M)(Engineering Estimate +$97M)

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)

Design/Build for $4 million, with $500k Design/Build for $4 million, with $500k incentives (Engineering Estimate $6 Million)incentives (Engineering Estimate $6 Million)

Engage the industry

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

Identify a program of projectsPerform scanning toursGet involved nationallyImplement standardizationEducate and communicate within the industry

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