shrp 2 - r04 abc demonstration bridge design and construction aashto committee on construction san...
TRANSCRIPT
- Slide 1
- SHRP 2 - R04 ABC Demonstration Bridge Design and Construction AASHTO Committee on Construction San Francisco, CA August 16, 2012
- Slide 2
- Iowa ABC Demonstration Project Two Week Closure 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
- Slide 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
- Slide 4
- UHPC UHPC Particle Packing UHPC Constituents: Portland cement silica fume fine, uniformly graded sand crushed quartz steel fibers water superplasticizers
- Slide 5
- 14-Day ABC Timeline 123 4 56789 10 111213 14
- Slide 6
- Bridge Farm Concept
- Slide 7
- Precast Abutments and Piers
- Slide 8
- Superstructure Modules
- Slide 9
- Deck Joint Forming
- Slide 10
- Deck Concrete Placement
- Slide 11
- Drilled Shaft Construction
- Slide 12
- Abutment Details Precast Abutment Construction Single piece barrel section SCC to fill pile pockets Temporary support of backwall until SCC reaches 3500 psi
- Slide 13
- Semi- Integral Abutment
- Slide 14
- Abutment Construction
- Slide 15
- SCC Concrete for Abutments
- Slide 16
- Precast Piers
- Slide 17
- Precast Pier Connections
- Slide 18
- Column Assembly and Bracing
- Slide 19
- Capbeam Assembly
- Slide 20
- Modular Superstructure
- Slide 21
- Pier Joint Detail C Pier 1 L C Pier 2 L
- Slide 22
- PT Retrofit for Modules
- Slide 23
- Module Transport
- Slide 24
- Module Assembly
- Slide 25
- Slide 26
- Deck Joint Reinforcing
- Slide 27
- UHPC Mixing
- Slide 28
- UHPC Placement
- Slide 29
- FHWA/HFL Workshop
- Slide 30
- Slide 31
- SHRP 2 - R04 ABC Demonstration Bridge Design and Construction Questions?