Alaska DOTPF SuperCor Buried Bridge Spans April 10
Alaska DOT&PF Super-Cor Buried Bridge Spans April 10, 2012 Doug Myers Greeley, CO
Where Would AKDOT Use Super Cor Bridges High Cover, Heavy Loads, Medium Bridges: 1 High Cover, the efficient profile of the Super Cor Bridge allows for higher fill heights for bridge/culvert crossings Heavy Loads, the strength of the Super Cor Bridge 2 Medium Bridges, 3 System can effectively handle E 80 Railroad Loadings, Heavy off road trucks crossings, etc… Super Cor Bridge Spans allow for clear spans over 50 ft. , which provide an alternative to medium span conventional bridges.
Why Would AKDOT Use Super Cor Bridges High Cover, Heavy Loads, Medium Bridges: 1 Lower Cost Mobilization, Super-Cor Bridge spans are assembled on site and can be transported on standard highway load trucks Lower cost Construction, Super-Cor Bridge 2 Lower Cost overall, 3 spans do not require large cranes or girder launching equipment to set. High cover designs result in shorter spans, smaller structures, accelerated construction.
DESIGN AND SPECIFICATIONS SNAP SHOT OF FEA ANALYSIS All buried bridge span structures should be analyzed through finite element as required by AASHTO and FHWA AASHTO LRFD Bridge Specifications
WSDOT US-2 Lowering – Spokane Super-Cor Arch
WSDOT US-2 Lowering- Spokane Super-Cor arch Design Build Staged Construction – 2 yr project 30 ft span, 17 ft rise, 40+ft of fill Big R Designed arch, footings, temp wire wall and permanent headwalls
WSDOT US-2 Lowering- Spokane Super-Cor Arch Design Build Staged Construction – 2 yr project 30 ft span, 17 ft rise, 40+ft of fill Designed footings, temp wire wall and headwalls
WSDOT SR 153 – Beaver Creek Fish Passage v. BEAVER PROJECT CREEK REMOVE EXISTING RCB v v. REPLACE WITH CLEAR SPAN 33’ ARCH v STATE HIGHWAY 153
WSDOT SR 153 – Beaver Creek Fish Passage New 33’ Span Super Cor Arch Existing 8’ X 8’ RCB
WSDOT SR 153 – Beaver Creek Fish Passage 33’-9”
MODOT “Safe and Sound”
MODOT “Safe and Sound”
MODOT “Safe and Sound”
Super-Cor Technical Resource Manual available electronically Please email me and I will send you a link
Thank You Big R Bridge Doug Myers dmyers@bigrbridge. com Ph: (253) 797 -8293 Fax: (425) 660 -6159 Big R Bridge
Fairbanks Gold Mine – Super-Cor Arch Grade Separated Crossing for new haul road. Cat 793 F ~860, 000 gross machine operating weight Design was for 2 loaded trucks
Fairbanks Gold Mine – Super-Cor Arch Varied width CIP concrete footing 46 ft span x 20 ft rise 29 ft of fill at deepest point 265 ft long
Fairbanks Gold Mine – Super-Cor Arch Fully assembled and ready for backfill in ~2 weeks
Fairbanks Gold Mine – Super-Cor Arch Engineered backfill Process Super-Cor never Requires thrust beams Shape was monitored – Total station control No bracing required
Fairbanks Gold Mine – Super-Cor Arch Live Load test – no movement! – Super-Cor Arch Completed structure
Port Saint Nicholas Road – POW Island – Super-Cor Arch
El Segundo – Super-Cor Arch
- Slides: 24
