Recommended
Recommended
More Related Content
What's hot
What's hot (20)
Viewers also liked
Viewers also liked (20)
Similar to The Primrose East Bridge
Similar to The Primrose East Bridge (20)
More from Jill Reeves
More from Jill Reeves (20)
Recently uploaded
Recently uploaded (20)
The Primrose East Bridge
- 1. PRIMROSE EAST BRIDGE Implementation of Folded Plate Technology & Geosynthetic Reinforced Soil-Integrated Bridge System 2016 Concrete Paving Workshop Jason Volz NDOR Construction
- 2. Primrose Bridge Primrose East Bridge: • Constructed Fall 2014 • On a county road east of Primrose • Contractor: Simon Contractors • Designer: NDOR Bridge Division
- 3. Primrose Bridge New Technologies: • GRS Abutment • Folded Plate Girder • Ultra-High Performance Concrete
- 4. Geosynthetic Reinforced Soil (GRS) Integrated Abutment: • Accelerated Construction • No Crane/Pile Hammer • No Specialized Labor
- 5. Folded Plate Girder: • Developed at UNL • Light Weight
- 6. Ultra High Performance Concrete: • 21,000 psi at 28-days • Narrow Joints • Minimal Shrinkage
- 7. Primrose Bridge Other Innovative Features: • Pre-Fabricated Bridge Elements • Accelerated Bridge Construction (ABC)
- 8. DECK CONSTRUCTION: • Girders Delivered July 1st • Offsite location used for casting deck
- 9. GIRDER DELIVERY • Elevation and Layout of Girders Matched Bridge
- 10. SHORED CONSTRUCTION • No Camber in Girders • Required Continuous Unyielding Support
- 11. DECK FORMING • Formed and poured all at once • Prevented problems with bar interference
- 12. DECK POUR • 47BD-4000 • White Pigment/ Wet Burlap Cure
- 13. 8” DECK JOINT • Required exposed aggregate finish. • Forms treated with set-retarder • Power washed 12-24 hours after pour
- 14. LIFTING DEVICES • Orientation required two cranes
- 15. BRIDGE SITE • Large Drainage Area • Flooding Overtopped Road • Road Closed for Construction Sept 15
- 16. GRS ABUTMENT • 2’ Reinforced Soil Foundation • 13’ GRS Abutment • 4’ Integrated Approach
- 17. EXCAVATION • Unsuitable material removed and replaced with granular fill • Layout of delivered materials
- 18. REINFORCED FOUNDATION • 2 ft thick “Burrito” beneath abutment and wings • Extra layer of fabric on abutment side
- 19. LEVELING COURSE • Critical to maintaining wall alignment • <0.5” of granular to help level
- 20. GRS Abutment • Step 1: Place block
- 21. GRS Abutment • Step 1: Place block • Step 2: Place Select Granular Backfill and compact
- 22. GRS Abutment • Step 1: Place block • Step 2: Place Select Granular Backfill and compact • Step 3: Place Geosynthetic Fabric
- 23. CMU BLOCK WALL • Red line at berm elevation for scour monitoring • Hollow vs solid block • Split face block
- 25. LOADING GIRDERS • 4 -Flatbed Trucks • 2-Cranes
- 26. SETTING GIRDERS • No rebar interference problems
- 28. UHPC EQUIPMENT • 3.5 cuft mixers • Shipped to site in advance
- 29. UHPC QUALITY CONTROL • All ingredients are measured out • Every batch is tested
- 30. UHPC JOINT FORMING • Formed an 1/8” high • Chimneys at 8’ spacing
- 32. UHPC JOINT GRINDING • Grind 1/8’” to remove voids • Hand grinders vs bump grinder
- 33. VOIDS IN UHPC • Filled with non-cement grout
- 35. WATER TESTING OF JOINTS • Joints were water tight, no additional sealing required
- 36. OPEN TO TRAFFIC • November 19th
- 38. Special Thanks Simon Contractors: • Dale Burkhead –Project Manager • Sid Smith – Project Superintendent NDOR District 3 • Steve Trosper – Project Manager • Monty Koch- Project Inspector NDOR Bridge • Fouad Jaber – Asst. State Bridge Engineer • Steve Ferguson- Designer Boone County • Darrel Thorin – Highway Superintendent
Editor's Notes
- Go over quick facts, then transition to why this county bridge is special.
- Bridge incorporates 3 new technologies not previously used in nebraska
- Has been used on 50-90 ft single span bridges with little scour. Designed to be built by county forces
- Design and concept discussed at last bridge conference I will focus on Implementation and lesson learned
- Design and concept discussed at last bridge conference I will focus on Implementation and lesson learned
- Design and concept discussed at last bridge conference I will focus on Implementation and lesson learned
- Design and concept discussed at last bridge conference I will focus on Implementation and lesson learned
- First time deck formed and poured all at once. Unique forming system
- At this point, half way through the working days. Majority of grs wall built, riprap placed and backfilled with top soil. This was a Monday