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Coordinating, Developing, and Delivering Highway Transportation Innovations

 
PRESENTATION
This presentation is an archived publication and may contain dated technical, contact, and link information
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Publication Number:  N/A    Date:  January 2014
Publication Date: January 2014

 

Long-Term Bridge Performance (LTBP) Program Update

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LTBP Workshop - January 16, 2014 - 2014 TRB Annual Meeting, Washington, DC

Sue Lane, P.E.
Development and Outreach Engineer
Long-Term Bridge Performance Program
Federal Highway Administration		 Hamid Ghasemi, Ph.D
Team Leader & Program Manager
Federal Highway Administration

Robert Zobel, Ph.D., P.E
Technical and Development Engineer
Federal Highway Administration

Tom Saad, P.E.
Federal Highway Administration

Presentation Outline

Presentation Outline

LTBP Cluster States

A watermark image of a map of the United States appears on the entire slide. Another smaller map of the United States appears on top of the watermark. The following States are highlighted in pink: Connecticut, Massachusetts, Maine, New Hampshire, New York, Rhode Island, and Vermont; these States comprise the Northeast cluster. The following States are highlighted in yellow: Pennsylvania, New Jersey, Maryland, District of Columbia, West Virginia, and Virginia; these States comprise the Mid-Atlantic cluster. Those States are located within a red circle and a red box is connected to the circle with a line. “Mid-Atlantic Cluster(s)” is written in the box. The following States appear in light purple: Ohio, Indiana, Kentucky, Tennessee, and North Carolina; these States comprise the Mixed Humid cluster. The following States appear in orange: Alabama, Arkansas, Florida, Louisiana, Mississippi, and Texas; these States comprise the Gulf Coast cluster. The following States appear in green: Minnesota, Iowa, Wisconsin, Illinois, Michigan; these States comprise the Mid-West (Central) cluster. The following States appear in dark purple: North Dakota, New Mexico, Oklahoma, Kansas, Missouri, Georgia, and South Carolina; these States comprise the Corridor cluster (States not included in other clusters). The following States appear in pale green: Montana, Idaho, Wyoming, South Dakota, Nebraska, Utah, and Colorado; these States comprise the Rocky Mountains cluster. The following States appear in bright green: Washington, Oregon, California, Nevada, and Arizona; these States comprise the Northwest – Southwest cluster. A key appears in the lower-right corner of the slide indicating which colors correspond to which States. Hawaii appears under California and Alaska appears under New Mexico and Texas; these States appear white and are not included in any cluster.

Mid-Atlantic Cluster Bridges

Untreated/Bare Cast-In-Place Concrete Deck

State Steel Multi-Girder,
Bare Deck		 PS Concrete,
Bare Deck 		Total
Delaware 3 2* 5
Maryland 1 1 2
New Jersey 2 3 5
Pennsylvania 2 3* 5
Virginia 3 2 5
West Virginia 1 1* 2
Total 12 12* 24

*Several factors require the new selection of 3 Prestressed Concrete Multi-girder bridges:

Long-Term Data Collection

Mid-Atlantic States:

Need For Automated Data Collection

FHWA in collaboration with Rutgers University envisioned, planned, designed, and constructed a novel (robotic) system, by integrating multiple non-destructive evaluation (NDE) technologies, for condition assessment of concrete bridge decks.  RABIT™ – Robotic Assisted Bridge Inspection Tool.

A photograph of the RABITTM Bridge Deck Assessment Tool appears in the center of the slide. RABIT stands for the Robotic Assisted Bridge Inspection Tool. The front mechanical arms of the RABITTM Bridge Deck Assessment Tool are visible and contain equipment for electrical resistivity tests (Wenner probes), and two acoustic arrays for impact echo tests and ultrasonic surface wave tests. Two high-resolution cameras pointed down at the bridge deck are also attached to the front of the robot. One GPS antenna is also visible at the top of the robot. The RABIT™ Bridge Deck Assessment Tool is situated on a two-lane bridge. Four orange and one yellow-green cone are set up on the double yellow line to keep traffic from the RABIT™ Bridge Deck Assessment Tool. There are three cars behind the tool. A text box with text in it appears to the left of the image.

RABIT ™ COMPONENTS

The robotic tool features a Panoramic Camera at its top, and two High-Resolution Imaging cameras pointed downward to capture images of the deck surface. Four Resistivity (Wenner) Probes are included at the bottom of the tool and two acoustic arrays are included there also. Water tanks are included for resistivity, and laser scanners are part of the tool for obstacle avoidance. Two Ground Penetrating Radar (GPR) arrays are located at the back of the tool to detect any voids or delaminations in the concrete deck below the surface. Two Global Positioning System (GPS) antennae are located toward the top of the tool—one antenna will provide data on the location of the robot, while the second antenna will provide data to determine the orientation of the robot.

IDIQ Contract

IDIQ Contract – Pennoni Associates

LTBP Strategic Bridge Performance Matrix

Presentation Outline

State Coordinators

Meetings with States – Status Update

On–Site Meeting Dates

This slide shows a map of the United States. States with solid colors indicate States where the LTBP Team has held an onsite meeting with the State DOT. States with striped colors indicate States where the LTBP Team has not yet held an onsite meeting with the State DOT. New York State is highlighted in solid pink. Connecticut, Massachusetts, Maine, New Hampshire, Rhode Island, and Vermont are highlighted in diagonally striped pink; these States comprise the Northeast cluster. The following States are highlighted in yellow: Pennsylvania, New Jersey, Maryland, West Virginia, Virginia, and the District of Columbia; these States comprise the Mid-Atlantic cluster. The following States appear in light purple: Ohio, Indiana, Kentucky, Tennessee, and North Carolina; these States comprise the East Central cluster. The following States appear in orange: Alabama, Arkansas, Florida, Louisiana, Mississippi, and Texas; these States comprise the Gulf Coast cluster. The following States appear in solid light green: Iowa, Wisconsin, and Illinois. Michigan and Minnesota have diagonal light green stripes. These States comprise the Mid-West (Central) cluster, and the States with stripes indicate States where onsite meetings will be scheduled. The following States appear in dark purple: Oklahoma, Kansas, Missouri, Georgia, and South Carolina. North Dakota and New Mexico have diagonal purple stripes. These States comprise the Corridor cluster. The diagonal purple stripes indicate the States where onsite meetings will be scheduled. The following States appear in pale blue: Montana, Idaho, Wyoming, South Dakota, Utah, and Colorado. Nebraska has diagonal pale blue stripes. These States comprise the Rocky Mountain cluster. The diagonal pale blue stripes indicate the State where an onsite meeting will be scheduled. The following States appear in green: Washington and Oregon. These states represent the Northwest cluster. The following states appear in maroon: California, Nevada, and Arizona. These States represent the Southwest cluster. A key appears in the lower-right corner of the slide indicating which colors correspond to which States. Hawaii appears under California and Alaska appears under New Mexico and Texas; these States appear white and are not included in any cluster. The States that are not striped have dates superimposed on them, indicating the date of the onsite meeting. To the right of Georgia, another key appears describing that the diagonally striped States indicate States that will schedule onsite meetings.

Presentation Outline

LTBP Products – Publications

Recently Published Documents:

LTBP Products – Publications

Documents Due Out In Next 6 Months:

Protocols—Identification and Publishing

Presentation Outline

Bridge Practices Timeline
(LTBP Low-Hanging Fruit)

Creating National Bridge Practices Timelines:

Standalone Reports (1960 to Present)

Bridge Practices Timeline
(LTBP Low-Hanging Fruit)

Creating National Bridge Practices Timelines:

Standalone Reports (1960 to Present)

Bridge Practices Timeline
(LTBP Low-Hanging Fruit)

Creating National Bridge Practices Timelines:

Standalone Reports (1960 to Present)

Georgia DOT Deck Cover

Pre 1970

2”

 To the right of the table is a box and inside the box, a map of the State of Georgia appears. All counties of Georgia are shown on the map. A blue line separates approximately the top one-third of the State from the bottom two thirds. The line runs along the southern edges of the following counties: Elbert, Oglethorpe, Oconee, Morgan, Newton, Henry, Spalding, Coweta, and Heard. The counties above the blue line are treated with de-icing chemicals in the winter. The counties below the blue line do not receive de-icing chemicals in the winter.
1970-1985 2 ½” – Northern Half

2” – Southern Half
1985-Present

*2 ¾” – Northern Half

*2 ¼” – Southern Half

* ¼” added to facilitate deck grinding and grooving

Thank You!

Questions?

This slide shows a black-and-white image of a bridge deck with four lanes. The two left lanes (in the direction of traffic) show vehicles, and the two right lanes are closed and workers are taking measurements with hand-held nondestructive evaluation tools. The lanes with traffic and the lanes with workers are separated by a traffic cone. The lanes with workers have white dots on a 2-foot by 2-foot grid painted on the top of the concrete bridge deck.

 

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