Update on the LTBP Program AWS
Southeast Bridge Preservation Partnership Charleston, WV Charleston Civic Center April 10, 2017
Update on the Federal Highway Administration’s (FHWA) Long Term Bridge Performance Program (LTBP) Robert Zobel, Ph.D., P.E. LTBP Program Coordinator Federal Highway Administration
Long-Term Bridge Performance Program
Quick Refresher LTBP Program
Program Focus
Implementation
Questions
Long-Term Bridge Performance Program
LTBP Program
Quick Refresher
A Quick Refresher • • • • •
6 High Priority Areas 14 Bridge Clusters 10 Bridge Corridors Reference Bridge Cluster Bridge
Untreated Concrete Decks Treated Concrete Decks
Prestressing/Post Tensioning Strands Steel Coatings Joints
Bearings
LTBP Program
Quick Refresher
Long-Term Bridge Performance Program
A Quick Refresher • • • • •
6 High Priority Areas 14 Bridge Clusters 10 Bridge Corridors Reference Bridge Cluster Bridge
Long-Term Bridge Performance Program
LTBP Program
Quick Refresher
A Quick Refresher • • • • •
6 High Priority Areas 14 Bridge Clusters 10 Bridge Corridors Reference Bridge Cluster Bridge
Visual Inspection Non-standard Arms length Segment-based Conventional Tools
Global Testing Load Testing Modal Testing Continuous Monitoring
NDE Impact Echo GPR Ultrasonic Imaging Resistivity
Cluster of Bridge Type A
Comparison: Cluster vs. Cluster Influences of Inputs: Climate, Maintenance Practices, etc.
Mat’l Testing Material Sampling Stiffness Strength Porosity Chloride Content
Long-Term Bridge Performance Program
Field Data Collection
LTBP Program
Quick Refresher
NDE, Visual Inspection, Material Sampling Mid-Atlantic Clusters (2)
Third round – 2 Mid-Atlantic Clusters (Spring 2017) First round – 4 clusters NW, SW, Gulf (2) – Complete Initiate Data Collection in Clusters/Corridors Nationally – (Late 2017 – Early 2018)
NW and SW Clusters (2)
Gulf Clusters (2)
Long-Term Bridge Performance Program
Quick Refresher
Field Data Collection Legacy Data Mining
Untreated Decks
4 clusters in NE region
> 400 Bridges - Data Collection/Extraction Complete
10 Corridors, 10 Clusters
LTBP Program
> 1200 Bridges - Data Collection/Extraction 85 % Complete Summer 2017
Treated Decks
Legacy Data Mining for Treated Decks Initiate Late 2017
Long-Term Bridge Performance Program
Quick Refresher LTBP Program
Program Focus
Implementation
Questions
Long-Term Bridge Performance Program
LTBP Program Focus Areas – Near Term
LTBP Program
Program Focus
• Data Collection
Untreated Bridge Decks Treated Bridge Decks
• Data Access
Provide data access via LTBP Bridge Portal
• Programmatic Support
Coordination, meetings, website, bridge portal, gap analyses, etc.
Long-Term Bridge Performance Program
LTBP Program Focus Areas – Near Term
LTBP Program
Program Focus
• Data Collection
Untreated Bridge Decks Treated Bridge Decks
• Data Access
Provide data access via LTBP Bridge Portal
• Programmatic Support
Coordination, meetings, website, bridge portal, gap analyses, etc.
Long-Term Bridge Performance Program
Program Focus Areas – Data Collection
LTBP Program
Program Focus
LTBP Bridge Breakdown Untreated Decks
Treated Decks
Concrete Steel Multigirder
Steel Coatings
Bearings
Joints
Prestressed Concrete Multigirder
Concrete Steel Multigirder
Prestressed Concrete Box
Prestressing Strands
Bearings
Joints
Steel Coatings
Bearings
Joints
Near Term Data Collection Focus
Prestressed Concrete Multigirder
Prestressed Concrete Box
Prestressing Strands
Bearings
Joints
Long-Term Bridge Performance Program
Program Focus Areas – Data Collection
LTBP Program
Program Focus
LTBP Bridge Breakdown Untreated Decks
Treated Decks
Concrete Steel Multigirder
Steel Coatings
Bearings
Joints
Prestressed Concrete Multigirder
Concrete Steel Multigirder
Prestressed Concrete Box
Prestressing Strands
Bearings
Joints
Steel Coatings
Bearings
Joints
Prestressed Concrete Multigirder
Prestressed Concrete Box
Prestressing Strands
Bearings
Preparation for Data Collection for Treated Bridge Decks
Joints
Long-Term Bridge Performance Program
LTBP Program Focus Areas – Near Term
LTBP Program
Program Focus
• Data Collection
Untreated Bridge Decks Treated Bridge Decks
• Data Access
Provide data access via LTBP Bridge Portal
• Programmatic Support
Coordination, meetings, website, bridge portal, gap analyses, etc.
Long-Term Bridge Performance Program
LTBP Program
Program Focus
Program Focus Areas – Data Access – LTBP Bridge Portal
• Standardize Updates NBI/NBE/Environmental LTBP Field Data
• Improve Accessibility • Maintain Functionality
Long-Term Bridge Performance Program
LTBP Program Focus Areas – Near Term
LTBP Program
Program Focus
• Data Collection
Untreated Bridge Decks Treated Bridge Decks
• Data Access
Provide data access via LTBP Bridge Portal
• Programmatic Support
Coordination, meetings, website, bridge portal, gap analyses, etc.
Long-Term Bridge Performance Program
Program Focus Areas – Programmatic Support Program Focus
Quality Assurance of Raw and Analyzed Data
Bridge Deck Performance Analysis and Modeling
LTBP Program
Strategic Research Matrices
Development/Refinement of Protocols (Treated Decks, LT Monitoring)
Long-Term Bridge Performance Program
Quick Refresher LTBP Program
Program Focus
Implementation
Questions
Long-Term Bridge Performance Program
LTBP Program
Implmentation
Proposed Data Collection Approach 3 Regions for Clusters – (1) Western, (2) Central, (3) Eastern Western Region – Clusters - NW, SW, Rocky Mountains (2) Central Region – Clusters - East Central (2), Mid-West (2), and Gulf Coast (2) Eastern Region – NE, Mid Atlantic (2)
2 Directions for Corridors
East-West Corridors
I-40, I-70, I-80, I-90, I-94
North-South Corridors I-95, I-35, I-29, I-15, I-5
Long-Term Bridge Performance Program
Proposed Data Collection Approach
LTBP Program
Implmentation
Proposed Data Collection Activities – Untreated Bridge Decks, Joints, and Bearings • Reference Bridges Detailed Visual Inspection, NDE (RABIT™), Material Sampling, and Long-Term Instrumentation • • • • •
Western Region Cluster Bridges Central Region Cluster Bridges Eastern Region Cluster Bridges Corridors (East-West) Corridors (North-South)
Cursory NDE and Imaging using RABIT ™
Long-Term Bridge Performance Program
LTBP Program
Implmentation
Automated Data Collection RABIT™-CE Bridge Deck Assessment Tool Robotic platform and operations center for in-situ assessment of bridge decks using imaging and nde technologies.
Technologies Deployed • • • • •
Impact Echo Ground Penetrating Radar Ultrasonic Surfaces Waves Electrical Resistivity Composite Imaging and Crack Mapping
System Operations
• Deployment, Control, QC • Onsite data and image processing
LTBP Program
Implmentation
Long-Term Bridge Performance Program Proposed Data Collection Approach: Increasing Cluster Bridge Sample Size
Cycle # 5 (12 Bridges) Round 1 Cycle # 4 Cycle # 5 (12 Bridges) (12 Bridges) Round 1 Point Round–2Add Decision
Cycle # N (12 Bridges) Round i-4 Cycle # N (12 Bridges) Round i-3
Cycle # 3 (12 Bridges) Round 1
bridges orCycle steady Cycle #4 #5 (12 Bridges) Bridges) state data(12 collection Round 2 Round 3
Cycle # N (12 Bridges) Round i-2
Cycle # 2 (12 Bridges) Round 1
Cycle # 3 (12 Bridges) Round 2
Cycle # 4 (12 Bridges) Round 3
Cycle # 5 (12 Bridges) Round 4
Cycle # N (12 Bridges) Round i-1
Cycle # 1 (12 Bridges) Round 1
Cycle # 2 (12 Bridges) Round 2
Cycle # 3 (12 Bridges) Round 3
Cycle # 4 (12 Bridges) Round 4
Cycle # 5 (12 Bridges) Round 5
Cycle # N (12 Bridges) Round i
12 Bridges
+ 12
+ 12
+ 12
Up to 60 Bridges
Long-Term Bridge Performance Program
LTBP Program
Implmentation
Implementation ……… Two New Contracts: Programmatic Support Technical Support Services Contract (TSSC) – recently awarded Field Data Collection Support
Data Collection Contract – Synopsis recently posted on FedBizOps – expected to be awarded Summer 2017
Long-Term Bridge Performance Program
LTBP Program
Implmentation
Proposed Phased Data Collection Approach UNTREATED Bridge Decks, Joints, and Bearings 2017
Data Collection Activity Q1 Reference Bridges
Q2
Q3
2018 Q4
Q1
Q2
Q3
2019 Q4
Q1
Q2
Q3
2020 Q4
Q1
Q2
Q3
2021 Q4
Q1
Q2
Q3
2022 Q4
Q1
Q2
Western Region Cluster Bridges Central Region Cluster Bridges
Eastern Region Cluster Bridges
Corridor Bridges (1-5)
Corridor Bridges (6-10) Designates Reference Bridge Schedule Designates First Data Collection Cycle Designates Second Data Collection Cycle (Additional Bridges) Designates Third Data Collection Cycle (Additional Bridges)
Phase in Treated Bridge Decks
Q3
Q4
Long-Term Bridge Performance Program
Quick Refresher LTBP Program
Program Focus
Implementation
Questions
Update on the Federal Highway Administration’s (FHWA) Long Term Bridge Performance Program (LTBP) Robert Zobel, Ph.D., P.E. LTBP Program Coordinator Federal Highway Administration
Long-Term Bridge Performance Program
Quick Refresher LTBP Program
Program Focus
Implementation
Questions
Long-Term Bridge Performance Program
LTBP Program
Quick Refresher
A Quick Refresher • • • • •
6 High Priority Areas 14 Bridge Clusters 10 Bridge Corridors Reference Bridge Cluster Bridge
Untreated Concrete Decks Treated Concrete Decks
Prestressing/Post Tensioning Strands Steel Coatings Joints
Bearings
LTBP Program
Quick Refresher
Long-Term Bridge Performance Program
A Quick Refresher • • • • •
6 High Priority Areas 14 Bridge Clusters 10 Bridge Corridors Reference Bridge Cluster Bridge
Long-Term Bridge Performance Program
LTBP Program
Quick Refresher
A Quick Refresher • • • • •
6 High Priority Areas 14 Bridge Clusters 10 Bridge Corridors Reference Bridge Cluster Bridge
Visual Inspection Non-standard Arms length Segment-based Conventional Tools
Global Testing Load Testing Modal Testing Continuous Monitoring
NDE Impact Echo GPR Ultrasonic Imaging Resistivity
Cluster of Bridge Type A
Comparison: Cluster vs. Cluster Influences of Inputs: Climate, Maintenance Practices, etc.
Mat’l Testing Material Sampling Stiffness Strength Porosity Chloride Content
Long-Term Bridge Performance Program
Field Data Collection
LTBP Program
Quick Refresher
NDE, Visual Inspection, Material Sampling Mid-Atlantic Clusters (2)
Third round – 2 Mid-Atlantic Clusters (Spring 2017) First round – 4 clusters NW, SW, Gulf (2) – Complete Initiate Data Collection in Clusters/Corridors Nationally – (Late 2017 – Early 2018)
NW and SW Clusters (2)
Gulf Clusters (2)
Long-Term Bridge Performance Program
Quick Refresher
Field Data Collection Legacy Data Mining
Untreated Decks
4 clusters in NE region
> 400 Bridges - Data Collection/Extraction Complete
10 Corridors, 10 Clusters
LTBP Program
> 1200 Bridges - Data Collection/Extraction 85 % Complete Summer 2017
Treated Decks
Legacy Data Mining for Treated Decks Initiate Late 2017
Long-Term Bridge Performance Program
Quick Refresher LTBP Program
Program Focus
Implementation
Questions
Long-Term Bridge Performance Program
LTBP Program Focus Areas – Near Term
LTBP Program
Program Focus
• Data Collection
Untreated Bridge Decks Treated Bridge Decks
• Data Access
Provide data access via LTBP Bridge Portal
• Programmatic Support
Coordination, meetings, website, bridge portal, gap analyses, etc.
Long-Term Bridge Performance Program
LTBP Program Focus Areas – Near Term
LTBP Program
Program Focus
• Data Collection
Untreated Bridge Decks Treated Bridge Decks
• Data Access
Provide data access via LTBP Bridge Portal
• Programmatic Support
Coordination, meetings, website, bridge portal, gap analyses, etc.
Long-Term Bridge Performance Program
Program Focus Areas – Data Collection
LTBP Program
Program Focus
LTBP Bridge Breakdown Untreated Decks
Treated Decks
Concrete Steel Multigirder
Steel Coatings
Bearings
Joints
Prestressed Concrete Multigirder
Concrete Steel Multigirder
Prestressed Concrete Box
Prestressing Strands
Bearings
Joints
Steel Coatings
Bearings
Joints
Near Term Data Collection Focus
Prestressed Concrete Multigirder
Prestressed Concrete Box
Prestressing Strands
Bearings
Joints
Long-Term Bridge Performance Program
Program Focus Areas – Data Collection
LTBP Program
Program Focus
LTBP Bridge Breakdown Untreated Decks
Treated Decks
Concrete Steel Multigirder
Steel Coatings
Bearings
Joints
Prestressed Concrete Multigirder
Concrete Steel Multigirder
Prestressed Concrete Box
Prestressing Strands
Bearings
Joints
Steel Coatings
Bearings
Joints
Prestressed Concrete Multigirder
Prestressed Concrete Box
Prestressing Strands
Bearings
Preparation for Data Collection for Treated Bridge Decks
Joints
Long-Term Bridge Performance Program
LTBP Program Focus Areas – Near Term
LTBP Program
Program Focus
• Data Collection
Untreated Bridge Decks Treated Bridge Decks
• Data Access
Provide data access via LTBP Bridge Portal
• Programmatic Support
Coordination, meetings, website, bridge portal, gap analyses, etc.
Long-Term Bridge Performance Program
LTBP Program
Program Focus
Program Focus Areas – Data Access – LTBP Bridge Portal
• Standardize Updates NBI/NBE/Environmental LTBP Field Data
• Improve Accessibility • Maintain Functionality
Long-Term Bridge Performance Program
LTBP Program Focus Areas – Near Term
LTBP Program
Program Focus
• Data Collection
Untreated Bridge Decks Treated Bridge Decks
• Data Access
Provide data access via LTBP Bridge Portal
• Programmatic Support
Coordination, meetings, website, bridge portal, gap analyses, etc.
Long-Term Bridge Performance Program
Program Focus Areas – Programmatic Support Program Focus
Quality Assurance of Raw and Analyzed Data
Bridge Deck Performance Analysis and Modeling
LTBP Program
Strategic Research Matrices
Development/Refinement of Protocols (Treated Decks, LT Monitoring)
Long-Term Bridge Performance Program
Quick Refresher LTBP Program
Program Focus
Implementation
Questions
Long-Term Bridge Performance Program
LTBP Program
Implmentation
Proposed Data Collection Approach 3 Regions for Clusters – (1) Western, (2) Central, (3) Eastern Western Region – Clusters - NW, SW, Rocky Mountains (2) Central Region – Clusters - East Central (2), Mid-West (2), and Gulf Coast (2) Eastern Region – NE, Mid Atlantic (2)
2 Directions for Corridors
East-West Corridors
I-40, I-70, I-80, I-90, I-94
North-South Corridors I-95, I-35, I-29, I-15, I-5
Long-Term Bridge Performance Program
Proposed Data Collection Approach
LTBP Program
Implmentation
Proposed Data Collection Activities – Untreated Bridge Decks, Joints, and Bearings • Reference Bridges Detailed Visual Inspection, NDE (RABIT™), Material Sampling, and Long-Term Instrumentation • • • • •
Western Region Cluster Bridges Central Region Cluster Bridges Eastern Region Cluster Bridges Corridors (East-West) Corridors (North-South)
Cursory NDE and Imaging using RABIT ™
Long-Term Bridge Performance Program
LTBP Program
Implmentation
Automated Data Collection RABIT™-CE Bridge Deck Assessment Tool Robotic platform and operations center for in-situ assessment of bridge decks using imaging and nde technologies.
Technologies Deployed • • • • •
Impact Echo Ground Penetrating Radar Ultrasonic Surfaces Waves Electrical Resistivity Composite Imaging and Crack Mapping
System Operations
• Deployment, Control, QC • Onsite data and image processing
LTBP Program
Implmentation
Long-Term Bridge Performance Program Proposed Data Collection Approach: Increasing Cluster Bridge Sample Size
Cycle # 5 (12 Bridges) Round 1 Cycle # 4 Cycle # 5 (12 Bridges) (12 Bridges) Round 1 Point Round–2Add Decision
Cycle # N (12 Bridges) Round i-4 Cycle # N (12 Bridges) Round i-3
Cycle # 3 (12 Bridges) Round 1
bridges orCycle steady Cycle #4 #5 (12 Bridges) Bridges) state data(12 collection Round 2 Round 3
Cycle # N (12 Bridges) Round i-2
Cycle # 2 (12 Bridges) Round 1
Cycle # 3 (12 Bridges) Round 2
Cycle # 4 (12 Bridges) Round 3
Cycle # 5 (12 Bridges) Round 4
Cycle # N (12 Bridges) Round i-1
Cycle # 1 (12 Bridges) Round 1
Cycle # 2 (12 Bridges) Round 2
Cycle # 3 (12 Bridges) Round 3
Cycle # 4 (12 Bridges) Round 4
Cycle # 5 (12 Bridges) Round 5
Cycle # N (12 Bridges) Round i
12 Bridges
+ 12
+ 12
+ 12
Up to 60 Bridges
Long-Term Bridge Performance Program
LTBP Program
Implmentation
Implementation ……… Two New Contracts: Programmatic Support Technical Support Services Contract (TSSC) – recently awarded Field Data Collection Support
Data Collection Contract – Synopsis recently posted on FedBizOps – expected to be awarded Summer 2017
Long-Term Bridge Performance Program
LTBP Program
Implmentation
Proposed Phased Data Collection Approach UNTREATED Bridge Decks, Joints, and Bearings 2017
Data Collection Activity Q1 Reference Bridges
Q2
Q3
2018 Q4
Q1
Q2
Q3
2019 Q4
Q1
Q2
Q3
2020 Q4
Q1
Q2
Q3
2021 Q4
Q1
Q2
Q3
2022 Q4
Q1
Q2
Western Region Cluster Bridges Central Region Cluster Bridges
Eastern Region Cluster Bridges
Corridor Bridges (1-5)
Corridor Bridges (6-10) Designates Reference Bridge Schedule Designates First Data Collection Cycle Designates Second Data Collection Cycle (Additional Bridges) Designates Third Data Collection Cycle (Additional Bridges)
Phase in Treated Bridge Decks
Q3
Q4
Long-Term Bridge Performance Program
Quick Refresher LTBP Program
Program Focus
Implementation
Questions
