MnDOT Bridge Maintenance AcademyDemo of GSSI StructureScan Mini. Bridge Maintenance Academy 2 Deck...
Transcript of MnDOT Bridge Maintenance AcademyDemo of GSSI StructureScan Mini. Bridge Maintenance Academy 2 Deck...
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MnDOTBridge Maintenance
Academy
Larry CooperSarah Sondag
MnDOT Bridge Operations Support
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Why?• Rapid bridge maintenance turnover in
2011– Over 50% of MnDOT bridge crews had
less than 5 years experience• No formal way to transfer knowledge• Address the skill gaps• Develop employees to meet future
needs of the organization• Promote consistency and
effectiveness
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How?• Formed training committees• Performed a Skills Assessment
– Top training needs:• Welding• Bridge Principles, Practices, Procedures
and Materials• Concrete Finishing/Flatwork• Carpentry• Masonry• Safety Training (HAR and Inspection)• Repair (steel, concrete, joints)
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What?• Developed a Bridge Maintenance
Training Plan
• Developed Training to address the top training needs:– Welding– High Angle Rescue– Bridge Maintenance Academy
• BMA 1• BMA 2• BMA 3
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BRIDGE MAINTENANCE ACADEMY 1
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Bridge Maintenance Academy
Bridge Maintenance Academy 1 • Classroom session • Taught by Lake Superior College and MnDOT personnel
– Bridge Components and Elements– Bridge Mechanics– Design Concepts– Plan Reading– Concrete– Safety and Traffic Control– Introduction to Bridge Preservation– Field Trip (LeJeune Steel and various bridge construction projects)
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Bridge Maintenance Academy 1 Classroom
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TH 169 over 494
Bridge Maintenance Academy 1 Field Trip 2012
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Hastings
Bridge Maintenance Academy 1 Field Trip 2012
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Inside the 5 foot slab span
Falsework required
Hastings
Bridge Maintenance Academy 1 Field Trip 2012
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LeJeune Steel
Bridge Maintenance Academy 1 Field Trip 2013
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Lafayette
Bridge Maintenance Academy 1 Field Trip 2013
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Bridge Maintenance Academy 1 Field Trip 2013
Hastings
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Bridge Maintenance Academy 1 2012-2013
• Goals– Equip the next generation of bridge leaders with the
knowledge and skills to be consistent, effective and efficient in their work in maintaining our structural assets
• Challenges– Coordinating subject matter experts and instructors– Coordinating site visits
• Allowing 20 local agency participants in 2014
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Bridge Maintenance Academy 1 2012-2013
• Evaluations
*out of 5
Evaluations BMA 1 - 2013
Instruction 4.59*
Course Material 4.34*
Entire Course 4.34*
Overall Average 4.48*
Relevant to Job 4.41*
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BRIDGE MAINTENANCE ACADEMY 2
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• Hands on training to apply BMA 1 concepts– Forming– Plan reading applications for a concrete slab and bridge rail– Concrete placement, curing and finishing– Placement, bending and tying of rebar for bridge repairs– Detect, remove and patch delaminated areas– Steel beam repair
• Classroom Presentations– Wet and Dry Shotcrete applications– Structural Steel– Formwork
Bridge Maintenance Academy 2 2013
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Build and set forms
Bridge Maintenance Academy 2 Reinforced Concrete Slab
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Bridge Maintenance Academy 2 Reinforced Concrete Slab
Place and tie steel reinforcement
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Bridge Maintenance Academy 2
Practice screed techniques
Reinforced Concrete Slab
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Bridge Maintenance Academy 2
Practice bull float techniques
Reinforced Concrete Slab
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Bridge Maintenance Academy 2
Place Concrete
Reinforced Concrete Slab
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Bridge Maintenance Academy 2
Screeding
Reinforced Concrete Slab
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Bridge Maintenance Academy 2
Finishing
Reinforced Concrete Slab
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Bridge Maintenance Academy 2
Tining, Brooming, Relief Joint
Reinforced Concrete Slab
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Bridge Maintenance Academy 2
Formwork and Structural Steel
Classroom
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Bridge Maintenance Academy 2
Drill and grout dowels• Proper cleaning• Approved products
Reinforced Concrete Rail
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Bridge Maintenance Academy 2 Reinforced Concrete RailBuild forms
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Bridge Maintenance Academy 2 Reinforced Concrete RailBend and cut steel reinforcement
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Bridge Maintenance Academy 2 Reinforced Concrete RailPlace steel reinforcement
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Bridge Maintenance Academy 2 Reinforced Concrete RailSet formsWhalers, snap ties and she bolts
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Bridge Maintenance Academy 2 Reinforced Concrete RailReady for concrete!
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Bridge Maintenance Academy 2 Reinforced Concrete RailConcrete Tests Air
Slump
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Bridge Maintenance Academy 2 Reinforced Concrete RailPlace Concrete
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Bridge Maintenance Academy 2 Reinforced Concrete RailStrip formsPrep surface
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Bridge Maintenance Academy 2 Deck RepairChain drag to find delaminated areasMark delaminated areasDemo of GSSI StructureScan Mini
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Bridge Maintenance Academy 2 Deck RepairSawcut and remove delaminated areas
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Bridge Maintenance Academy 2 Deck RepairMix and Patch
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Bridge Maintenance Academy 2 ClassroomShotcrete – Wet and Dry Process
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Bridge Maintenance Academy 2 Steel RepairDemo of magnetic drill
Demo of air drill and “old man”
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Bridge Maintenance Academy 2 Steel RepairSurface Prep
Reading plansMarking steel
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Bridge Maintenance Academy 2 Steel RepairCutting, checking fit and punching holes
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Bridge Maintenance Academy 2 Steel Repair
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Bridge Maintenance Academy 2 Steel RepairPlace and fasten boltsTurn of the nut method vs. DTI
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Bridge Maintenance Academy 2 Steel RepairSteel repair tips
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Bridge Maintenance Academy 2 2013Session one participants
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Bridge Maintenance Academy 2 2013Session two participants
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• Doug Larson – Lake Superior Technical• Bill Servatius – Lake Superior Technical • Larry Waletzki – D6 Bridge• Dow Rychlak – D1 Bridge• Roger Edstrom – D1 Bridge• Mark Soenneker – D3 Bridge• Rick Pickar – D3 Bridge• Jay Spencer – D7 Bridge• Dale Dombroske – Metro Bridge• Mike Anderson – Mendota Bridge• Rich Ellinghuysen – Mendota Bridge • Pat O’Brien – Maplewood Bridge• Rob Lehrke – Plymouth Bridge• Mike Ramberg – Forest Lake Bridge
• Paul Rowekamp – Bridge Office• Dustin Thomas – Bridge Office• Mark Spafford – Bridge Office• Mark Fischbach – Metro Hwy Maintenance • Ron Mulvaney – Concrete Office• Gordy Bruhn –Concrete Office• Ken Johnson – Lake Superior Technical• Bob Kleinschmidt – Lake Superior Technical• Ted Ulven – Traffic• Todd Haglin – Safety• Norm Plasch – Bridge Training Development• MnDOT Bridge Office Leadership• Division Directors
Bridge Maintenance Academy Special Thanks to…
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Bridge Maintenance Academy 2 2013
• Goals– Transfer knowledge and skills
from experienced bridge workers to the next generation of bridge workers
– Ensure that uniform bridge maintenance practices are applied statewide.
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Bridge Maintenance Academy 2 2013
• Challenges– Training location– Sequence of Events– Materials– Tools and Equipment– Instructors– Group Leader Volunteers– Curriculum Development
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Bridge Maintenance Academy 2 2013
• Evaluations
Evaluations BMA 2Session 1
BMA 2Session 2
Instruction 4.55 4.87
Course Material 4.45 4.67
Entire Course 4.60 4.60
Overall Average 4.38 4.57
Relevant to Job 4.40 4.47
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Bridge Maintenance Academy 2 2014
• Training Changes for 2014– Construct abutments instead of rails– Use the abutments to build a small bridge in BMA 3– Allow 10 local agency participants
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Bridge Maintenance Academy 3 2014
• Bridge Maintenance Academy 3 – February 2014– Brand new course– Construct a small bridge from
BMA 2 elements• Set bearings• Attach diaphragms• Set steel beams• Form and pour a deck• Set a strip seal expansion device
– Jacking techniques
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Thank You!
Questions?
Larry CooperSarah Sondag
MnDOT Bridge Operations Support