Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

ABC in Nebraska

290 views

Published on

A presentation given during the 39th Annual NCPA Concrete Paving Workshop. By Fouad Jaber, Assistant State Bridge Engineer, NDOT

Published in: Engineering
  • Be the first to comment

  • Be the first to like this

ABC in Nebraska

  1. 1. ABC IN NEBRASKA FOUAD JABER Assistant State Bridge Engineer NCPA CONFERENCE Lincoln, NE January 16, 2018
  2. 2. Today’s Presentation • History of ABC in Nebraska • Steel Tub Girders • Precast Deck Panels • Kearney East Bypass • Precast Elements • Precast Approach Slabs • County built ABC projects
  3. 3. • Phillips Interchange - 2003 • 262nd Street over I-80 - 2008 • Primrose East (Folded Plate)-2014 3 Steel Tubs
  4. 4. • S080 31817 • 2 spans 139’ &139’ • 41’ wide • 0 skew • Built in 2003 4 Steel Tubs - Phillips Interchange
  5. 5. 5 Steel Tubs - Phillips Interchange
  6. 6. • S080 42350 • 2 spans 137’ &137’ • 32’ wide • 24 skew • Built in 2008 6 Steel Tubs - 262nd Street over I-80
  7. 7. 7 Steel Tubs - 262nd Street over I-80
  8. 8. 8 Steel Tubs - 262nd Street over I-80
  9. 9. • C000614205 • Single span 50’ • 32’ wide • 0 skew • Built in 2014 9 Steel Tubs (Folded Plate) -Primrose East
  10. 10. 1 Steel Tubs (Folded Plate) -Primrose East
  11. 11. 1 Steel Tubs (Folded Plate) -Primrose East
  12. 12. • Skyline Drive over West Dodge-2002 • Kearney East Bypass - 2016 • Belden to Laurel - 2018 1 Precast Concrete Deck Panels
  13. 13. • SL28B00216 • 2 spans 89’ & 125’ • 51’ wide • 25 skew • Build in 2002 1 Skyline Drive
  14. 14. 1 Skyline Drive
  15. 15. • S010 05463R • 2 spans 166’ & 166’ • 42’ wide • 14 skew • Built in 2016 • YouTube Video • https://www.youtube.com/watch?v=_5Pp9CXw_BE 1 Kearney East Bypass
  16. 16. Acknowledgements •Coreslab Structures Inc. •Hawkins Construction Company •University of Nebraska •FHWA
  17. 17. Prestressed Panels
  18. 18. Prestressed Panels
  19. 19. Covered Pockets
  20. 20. Large Spacing Between Shear Connectors
  21. 21. Construction Sequence 1. Girder Production 2. Panel Production 3. Girder Erection 4. Panel Erection 5. Transverse Joints Grouting 6. Deck Post-tensioning 7. Haunch and Pockets Grouting 8. Deck Grinding
  22. 22. Girder Erection
  23. 23. Girder Erection
  24. 24. Girder Erection Posttensioning Strands Panel Support System
  25. 25. Panel Erection
  26. 26. Panel Erection 8 reinforced pockets were used for lifting
  27. 27. Large Precast Panels Lifting Device at Pockets
  28. 28. Panel Erection
  29. 29. Panel Erection
  30. 30. Transverse Joint - Grouting
  31. 31. Simple Longitudinal Post-tensioning
  32. 32. Haunch & Pocket Grouting Average SCC slump flow = 29 in.
  33. 33. Haunch & Pocket Grouting SCC mix for field application Head pressure needed for flowability
  34. 34. Haunch & Pocket Grouting
  35. 35. Haunch & Pocket Grouting https://www.youtube.com/watch?v=wFC8zxpVDp8
  36. 36. No Deck Overlay
  37. 37. Removed Panel Support–Exterior Girder
  38. 38. • Belden – Laurel • Single span 130’ • 43’ wide • 10 skew • Construction in 2018 3 Precast Elements
  39. 39. • Precast deck panels with precast bridge rails • Precast abutment caps • Precast wings • Precast grade beams • Precast approach slabs 4 Belden - Laurel
  40. 40. 4 Belden - Laurel
  41. 41. Superstructure – Set NU Deck Panels
  42. 42. 4 Precast Approach Slabs
  43. 43. 4 Precast Approach Slabs
  44. 44. County Crews Building Bridges
  45. 45. 4 Research – Deck Panels for County Bridges
  46. 46. Questions??

×