development of national training for bridge maintenance...• identify common types of expansion...
TRANSCRIPT
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Development of National Training for Bridge Maintenance
Western Bridge Engineers Seminar 2015Session 5D
Eric Thorkildsen, PEGreenman-Pedersen, Inc.
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Presentation Sponsors of the Training
• National Highway Institute (NHI)• Training arm of Federal Highway (FHWA)
How to train bridge maintenance personnel• Adult Learning Techniques
What have we developed• Reference Manual• Web Based Training• Instructor Led Training
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Bridge Maintenance Course
1:1- 3
You are here
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Reference Manual
• Over 1,000 pages• 25 Chapters• 22 Checklists• Decision Aid Matrices
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Contents
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“Suggested Procedures”
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Tips
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Web Based Training
• 8 Hours on-line• Background Info• 6 Modules
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Fundamentals of Bridge Maintenance
FHWA-NHI-130107A
Welcome & Introduction
Web-based training:
• Other Web-based training courses are available from NHI:
http://www.nhi.fhwa.dot.gov
• Self-paced, web-based course that is designed for you to progress at own pace
• Learning system will remember your progress and allow training to resume at any time without losing your position
• Review previously completed topics at any time
• Audio component is available or can be muted and narrative read on your own.
Training Delivery Method
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Fundamentals of Bridge Maintenance
FHWA-NHI-130107A
Welcome & Introduction
Navigational Features: Adobe Presenter
Outline tab
Narration tab
Search tab
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Fundamentals of Bridge Maintenance
FHWA-NHI-130107A
Bridge Maintenance Management
FHWA-NHI-130107A
Fundamentals of Bridge Maintenance
Module 2
Bridge Maintenance Management
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Fundamentals of Bridge Maintenance
FHWA-NHI-130107A
Bridge Maintenance Management
Upon completion of this module, you will be able to:
• Review basic requirements for bridge inspections according to the National Bridge Inspection Standards and the AASHTO Element Level Inspection Guide
• Summarize the general concept of bridge management systems and the activities associated with these systems
• Review the various steps and activities involved in the proper planning and implementation of bridge maintenance program activities
• Discuss commonly used contracting bridge maintenance methods
• Describe the principles of quality assurance and quality control measures used in bridge maintenance.
Module Learning Outcomes
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Fundamentals of Bridge Maintenance
FHWA-NHI-130107A
Bridge Maintenance Management
Module Introduction
This module contains the following lessons:
• Lesson 1: Bridge Inspections
• Lesson 2: Maintenance Management Systems (MMS) and Bridge Management Systems (BMS)
• Lesson 3: Bridge Maintenance Planning and Scheduling
• Lesson 4: Contracting Methods
• Lesson 5: QA/QC Practices
This module will take approximately 80 minutes to complete.
During each lesson, knowledge checks are provided to test your understanding of the material presented.
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Fundamentals of Bridge Maintenance
FHWA-NHI-130107A
Bridge Maintenance Management
Do you need to review contracts? Select this link to return to that section of the lesson or select the Next button to continue.
Match the following types of contracts with their correct description.
Type of Contract Description
a. Uses standard plan details and a universal specification activities that are covered under the contract
b. Agency defines how the work will be done
c. Contractors bid by submitting unit prices for each of the identified bid items
b Method-Based
c Directed
a Job Order Contract
d Performance-Based
d. Agency defines expected outcomes from the work
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Instructor Led Training
• 4 Days• 7 Modules• Lecture• Hands On Activities• Adult Learning
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NHI-130108Bridge Maintenance
Lesson 1: Maintenance and Preservation Techniques for Expansion Joints
Module 3: Maintenance and Preservation Techniques
for Special Deck Elements and Features
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Learning Outcomes• Explain the purpose and significance of
expansion joints• Identify common types of expansion joints• Identify expansion joint components• Recognize common expansion joint defects
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Purpose of Expansion Joints• Provide a gap for bridge movement
o Expansiono Contraction o Rotation
• Provide a smooth riding surfaceo Approach roadway to a bridge deck, oro Between adjoining segments of a bridge deck
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Expansion Joint Locations • Located above piers, abutments, pin &
hangers, or on a sleeper slab• Typically placed transverse; but, may also be
longitudinal on bridge decks greater than 100 feet wide
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Categories of Bridge Joints• Closed expansion joints
o Provides a smooth riding surface over the gapo Protects the portion of the bridge directly below
the opening• Open expansion joints
o Used in older bridges, but now are very rare o Allowed drainage to flow through the joint and
down onto bridge components belowo Relied upon drainage troughs below the joints to
protect the bridge beneath from debris and water• Fixed joints
o Do not have a gap or opening o Are NOT expansion joints, and do not provide for
movement
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Compression Joint Seal • Relies on compression to maintain water
tightness• Is inserted into the joint using lubricants
which may also serve as adhesives
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Compression Joint Seal (cont.)• Two types:
o Open cello Closed cell foam
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Pourable Joint Seal • Made of a self-leveling,
rapidly curing silicone material
• Headers are typically elastomeric concrete
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Asphaltic Plug Seal
• Used with asphalt overlays• Specially formulated asphaltic binder mixed
with aggregate that forms the road surface above the joint
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Asphaltic Plug Seal (cont.)
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Asphalt Joint
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Action
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Epoxy Overlay
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Healer Sealer
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Deck Prep
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Equipment
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Schedule
Reference Manual Fall 2015 Web Based Training Winter 2015/2016 Instructor Led Training Spring 2016
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Fundamentals of Bridge Maintenance
FHWA-NHI-130107A
Welcome & Introduction
Thank You
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