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M-25 over Harbor Beach Creek

M-25 over Harbor Beach Creek. M-25 over Harbor Beach Creek. Bridge to Culvert Replacement $1.27M Programmed Cost $270,000 Innovative Bridge Research and Deployment Program Federal Grant. Existing Harbor Beach Creek Bridge. M-25 over Harbor Beach Creek. Composite Arch Culvert System

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M-25 over Harbor Beach Creek

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  1. M-25 over Harbor Beach Creek

  2. M-25 over Harbor Beach Creek • Bridge to Culvert Replacement • $1.27M Programmed Cost • $270,000 Innovative Bridge Research and Deployment Program Federal Grant Existing Harbor Beach Creek Bridge

  3. M-25 over Harbor Beach Creek • Composite Arch Culvert System • aka “Bridge in a Backpack”

  4. “Bridge in a Backpack” Arches inflated and formed Composite decking Installing arches

  5. “Bridge in a Backpack” Filling arches with concrete Backfill to road Fascia

  6. M-25 over Harbor Beach Creek • Traffic currently detoured • Fix Life of >75 years • Every Day Counts • Faster + Cheaper + Safer + Smarter = Better Existing Harbor Beach Creek Bridge

  7. M-25 over Harbor Beach Creek • Started in Spring 2012 • Original completion date August 25 Sixteen 12” diameter arch tubes arriving at project site

  8. M-25 over Harbor Beach Creek Arch end section Inlet holes for concrete

  9. M-25 over Harbor Beach Creek Large lateral forces from arches required battered piles First arch rib install

  10. M-25 over Harbor Beach Creek Reinforcement for arch end anchoring into abutment Multiple arch tubes installed

  11. M-25 over Harbor Beach Creek Arch tube installation complete Finishing concrete around arch tube endings

  12. M-25 over Harbor Beach Creek Composite decking installation

  13. M-25 over Harbor Beach Creek Expansive Self Consolidating Concrete (SCC) slump flow test Measuring slump flow

  14. M-25 over Harbor Beach Creek Filling arches from top with SCC Sounding for voids – 8/9

  15. M-25 over Harbor Beach Creek • Challenges: • Still need a conventional deep foundation • Remote project location, readi-mix supplier 1 hour away • Issues with SCC remaining fluid and workable long enough • Concrete setting too fast in arch ribs causing voids • Working with AIT to resolve issues: • Revising SCC mix with additional admixtures • Drilling additional holes in arch ribs to fill voids with grout • Identify high stress areas via finite model to avoid drilling in those locations

  16. M-25 over Harbor Beach Creek • When arches complete and composite with concrete, a 7” concrete overlay will be cast over the composite decking for lateral stability • Decorative composite finish will be placed on headwalls and wingwalls • Placement of roadway fill and pavement section

  17. M-25 over Harbor Beach Creek • Design specifications recently voted on and approved by AASHTO Subcommittee on Bridges and Structures

  18. MDOT CFRP Implementation: Building bridges for the 21st centuryAASHTO Subcommittee on Bridges & Structures Technical Committee T-6 Austin, TX, July 9, 2012 Matt Chynoweth, Engineer of Bridge Field Services

  19. Two span simply supported prestressed I-beam structure in poor condition (based on NBIS ratings) MDOT CFRP Deployment • Pembroke over M-39 Bridge Replacement Existing Structure

  20. Materials stored at Detroit Maintenance Garage through winter and spring of 2011 MDOT CFRP Deployment • Pembroke Bridge CFCC cables

  21. Special provisions for handling instructions were written for installation MDOT CFRP Deployment • NEFMAC Grid installation

  22. Finished installation MDOT CFRP Deployment • NEFMAC Grid installation

  23. Measuring deck deflections, deck strains and PT tendon loads MDOT CFRP Deployment • Monitoring and Data Collection

  24. Photos taken October 2011 MDOT CFRP Deployment • Complete Pembroke Structure

  25. Existing structure Project let January 2012 MDOT CFRP Deployment • M-50/US-127 BR over NS RR

  26. Cables were double sheathed and fed into 5” conduits MDOT CFRP Deployment • M-50 Bridge CFCC cables

  27. Cables were double sheathed and fed into 5” conduits MDOT CFRP Deployment • M-50 Bridge CFCC cables

  28. Fabricator’s stressing chair: cables stressed to 75 kips, then 150 kips once deck is placed & cured MDOT CFRP Deployment • M-50 Bridge CFCC cables

  29. Load cells placed on dead end measure micro-strain, which is converted to force MDOT CFRP Deployment • M-50 Bridge CFCC cables

  30. Stirrups Configuration of Control decked Bulb T Beam Transverse ducts for TPT Steel/CFRP stirrups along the span Steel/CFRP stirrups at diaphragms Steel/CFRP prestressing strands

  31. Next Steps Other research: • MDOT project OR14-24: Evaluating Long Term Capacity and Ductility of Carbon Fiber Reinforced Polymer prestressing and post tensioning strands subject to long term losses, creep, and environmental factors • To begin in FY 2013 • NCHRP 12-97: Design Guidelines for Field Deployment CFRP prestressed beams in Bridge Construction • MDOT submitted research idea

  32. Thank you Questions?

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