9 - Skyway for Maint. Conf.

7/31/2019 9 - Skyway for Maint. Conf.

1/48

Presented by:

Pepe Garcia, P.E.

Steve Womble, P.E.In collaboration with

Atiq Alvi, P.E. and Teddy Theryo, P.E.

with Parsons Brinckerhoff

Presented by:

Pepe Garcia, P.E.

Steve Womble, P.E.

In collaboration with

Atiq Alvi, P.E. and Teddy Theryo, P.E.

with Parsons Brinckerhoff

Yesterday, Today and TomorrowYesterday, Today and Tomorrow

STATE

OFFLORIDA

DEP

ARTM

ENTOFTRAN

SPORT

A

TION

May 2006

Sunshine Sk yw ay Br idgeSunsh ine Sk yw ay Br idge


2/48


3/48


SEPT. 6, 1954: The $22 million, 4-mile Sunshine Skyway bridge opens with twolanes between Manatee and Pinellas counties

MAY 19, 1971: A second two-lane Skyway span is added at a cost of $25 millionBuilt west of the original span, it carried southbound traffic

MAY 9, 1980: A phosphate freighter strikes a Skyway pier during a severe storm.A huge section of the span built in 1971 crumbles into the Bay killing 35 people

MAY 11, 1980: The undamaged northbound span of the bridge reopens for two-way traffic

A signature replacement bridge was envisioned by then Governor Bob Graham

APRIL 30, 1987: A new, $244 million Sunshine Skyway opens. It is touted as saferthan the old bridge. The shipping channel is widened about 50 percent

The bridge is considered the flag bridge of the State

The bridge receives significant local and national media attention

The bridge rates Travel Channels No. 3 of Top 10 Bridges

NOV. 21, 2005: Bridge named The Bob Graham Sunshine Skyway Bridge

History


4/48

1971

1954

Yesterday


5/48

Sunshine Sk yw ay Br idgeSunshine Sk yw ay Br idge

Summit VentureBridge Impact 1980


6/48

On January 31, 1981 Gov. Bob Grahamannounced that the new Sunshine SkywayBridge Would be a state-of-the-art concrete

cable-stayed bridge.

Sunshine Sk yw ay Br idge

The Vision

Governor Grahams

Tomorrow


7/48

HIGH LEVELAPPROACH

Main SPAN HIGH LEVELAPPROACH

LOW LEVELTRESTLE

SPANS

LOW LEVELTRESTLE

SPANS

Total Bridge length: 4.14 miles


Bridge GeometryBridge Geometry


8/48


9/48


10/48

MAIN SPAN

Total length: 4,000 ft

Post-Tensioned Precast Segmental Box42 Continuous Stay Cables, 21 per Pylon


Bridge GeometryBridge Geometry


11/48


PE Ducts

High Level Approaches

Pre-Cast Column

PT Segments


12/48

High Level ApproachesSuperstructure

PT Segmental Construction



13/48

June 1984

Main SpanPre-Cast

PT Segments



14/48


15/48

Stay Cable Dampners

Sunshine Sk yw ay Br idgeSunsh ine Sk yw ay Br idgeMain Span


16/48

Yesterday and TodayYesterday and Today



17/48

Yesterdays GoneYesterdays Gone

SunshineSk yw ay Br idgeSunshineSk yw ay Br idge


18/48


19/48

TodayToday



20/48

Non-Routine MaintenanceNon-Routine Maintenance

Armored Joint



21/48

Teflon JointReplacement 1993


Non-Routine Maintenance


22/48

Spot Paint Project 1997




23/48

Modular Joint Replacement

2001

Sunshine Sk yw ay Br idgeSunsh ine Sk yw ay Br idgeNon-Routine Maintenance


24/48

Access StairsSegmental Transition

2003

Access StairsSegmental Transition

2003




25/48

PT InvestigationCorrosion at

Column 133 NBSeptember 2000




26/48

NDT- Non-Destructive TestingNDT- Non-Destructive Testing

PT Tendon Vibration Testing

PT Investigation

AcademiaCollaboration




27/48

PT Investigation



Destructive Testing


28/48


29/48

High Level ApproachSuperstructure Inspection

High Level ApproachSuperstructure Inspection

PT Investigation




30/48


31/48

Stay CablesVibration Testing

PT Investigation




32/48

Tendon Corrosion

Tendon Failures

Split/Crack PEDuct

Grout Voids

Contaminated

Grout

Salt Water inHollow Columns

Segmental JointLeaks

Concrete cracks Suspect PE Duct

Quality

PT Investigation Summary




33/48

PT Repair and Maintenance Strategy

Structural Redundancy

Restoration of Corrosion Protection PT Duct Wrapping

PT Void Grouting

New Levels of Corrosion Protection Surface Coatings

Pour-backs Caps

Main Span Median Watertight Joints New PT Corrosion Protection Strategies

Localized or Universal Repairs as Applicable

Monitoring Program




34/48

Geotechnical: Review of existing pile driving records Review of boring log Evaluate the existing foundation capacity (Florida Pier)

Structural: Global time dependent analysis model

Finite element analysis Vessel Collision Risk analysis Evaluate structural capacity of existing column and new repair options FDOT PT Corrosion Protection Improvement Strategies

Materials: Mass concrete with fly ash or slag PT bars (45 mm diameter) Approved pre-packaged grout material Improve PT details Polymer coating (polyurethane)

PT Corrosion Engineering Evaluation




35/48

2001: Revised grouting specifications

2001: FDOT allowed only Non-Bleed approvedprepackaged grout materials

Since 2002: FDOT New Direction for Florida Post-Tensioned Bridges

FDOT Five Strategies Strategy 1: Enhanced PT Systems

Strategy 2: Fully Grouted Tendons Strategy 3: Multi-Layered Anchor Protection

Strategy 4: Watertight Bridges

Strategy 5: Multiple Tendon Paths

FDOT PT Corrosion ProtectionImprovement Strategies




36/48

Vertical Tendon Grouting

Mock-Up Test Set-Up2003

Vertical Tendon Grouting

Mock-Up Test Set-Up2003

PT Repairs




37/48

PT Repairs


Non-Routine MaintenanceUniversal Repairs 2003


38/48

Inserting Bars into Box GirderInserting Bars into Box Girder

PT Repairs




39/48

Pier Cap Coating and Crack InjectionPier Cap Coating and Crack Injection

PT Repairs




40/48

Protective Sealing RepairProtective Sealing RepairPT Repairs




41/48

Shrink Wrap Sleeve

PE Duct

Shrink Wrap Sleeve

PE Duct

Heat Shrink WrapRepairs

PT Repairs




42/48


Maintenance Steering Committee Maintenance Continuity for Expected Long Life

Asset Maintenance Contract Inspection and Monitoring Services Routine Maintenance MMS 800 Series Activities Non-Routine (Periodic)

Non-Routine Maintenance Asset Maintenance Project Specific Emergency Fast Response

Engineering, Planning and Construction

Management Support

Todays Maintenance Plan

Maintenance Steering CommitteeSeptember 1999


43/48

S hi Sk B id


44/48

Asset Maintenance Routine MaintenanceAsset Maintenance Routine Maintenance



45/48


46/48

S hi Sk B idS hi Sk B id


47/48


Media Attention

Travel Channels Top 10 Bridges

1. Golden Gate Bridge, San Francisco, California

2. Akashi Kaiyko Bridge, Kobe, Japan

3. Sunshine Skyway Bridge, St.Petersburg, FL

4. Tower Bridge, London, England

5. Firth of Forth Bridge, Queensferry, Scotland

6. Brooklyn Bridge, Brooklyn, NY

7. Chesapeake Bay Bridge-Tunnel, Virginia Beach, VA

8. Sydney Harbour Bridge, Sydney, Australia

9. Leonard P. Zakim Bridge, Boston, MA10. London Bridge, Lake havasu, AZ

Gene Figg1937 - 2002

13

Pepe Garcia


48/48

Bob Graham Sunshine Sk yw ay Br idgeBob Graham Sunshine Sk yw ay Br idge

Questions?

Date post:	05-Apr-2018
Category:	Documents
Upload:	agata-carey
View:	235 times
Download:	0 times

9 - Skyway for Maint. Conf.

Documents