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SHRP 2 - R04 ABC Demonstration Bridge Design and Construction

SHRP 2 - R04 ABC Demonstration Bridge Design and Construction. AASHTO Committee on Construction San Francisco, CA. August 16, 2012. US Highway 6 Bridge over Keg Creek 6 miles east of Council Bluffs, IA Normal construction duration 14-16 weeks ABC construction duration 14 days.

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SHRP 2 - R04 ABC Demonstration Bridge Design and Construction

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  1. SHRP 2 - R04 ABC Demonstration Bridge Design and Construction AASHTO Committee on Construction San Francisco, CA August 16, 2012

  2. US Highway 6 Bridge over Keg Creek 6 miles east of Council Bluffs, IA Normal construction duration 14-16 weeks ABC construction duration 14 days Iowa ABC DemonstrationProjectTwo Week Closure

  3. Project Innovations • Precast modular bridge system (including precast approach pavement) • Superstructure units create a semi-integral abutment for rapid construction • Durable, moment-resisting UHPC joint between deck panels • First bridge in US with full, moment-resisting UHPC joint at the piers

  4. UHPC Constituents: • Portland cement • silica fume • fine, uniformly graded sand • crushed quartz • steel fibers • water • superplasticizers UHPC UHPC Particle Packing

  5. 1 2 3 5 6 7 8 9 4 10 14 11 12 13 14-DayABC Timeline

  6. Bridge Farm Concept

  7. Precast Abutments and Piers

  8. Superstructure Modules

  9. Deck Joint Forming

  10. Deck Concrete Placement

  11. Drilled Shaft Construction

  12. Abutment Details • Precast Abutment Construction • Single piece barrel section • SCC to fill pile pockets • Temporary support of backwall until SCC reaches 3500 psi

  13. Semi-Integral Abutment

  14. Abutment Construction

  15. SCC Concrete for Abutments

  16. Precast Piers

  17. Precast Pier Connections

  18. Column Assembly and Bracing

  19. Capbeam Assembly

  20. Modular Superstructure

  21. C Pier 1 C Pier 2 L L Pier Joint Detail

  22. PT Retrofit for Modules

  23. Module Transport

  24. Module Assembly

  25. Module Assembly

  26. Deck Joint Reinforcing

  27. UHPC Mixing

  28. UHPC Placement

  29. FHWA/HFL Workshop

  30. SHRP 2 - R04 ABC Demonstration Bridge Design and Construction Questions?

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