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UHPC Waffle Bridge Panels
Full Depth Ultra High Performance Concrete (UHPC) Waffle Bridge Panels
Coreslab Structures, Omaha
Date: Thursday, July 29th, 2010
To register: Contact Julie Zirlin, Highways for LIFE Technology Partnerships Program Manager 202-366-9105 or Julie.Zirlin@dot.gov
Coreslab Structures, Omaha received a Technology Partnerships grant to develop the full depth waffle deck panels. The first application is planned for a replacement bridge in Wapello County, Iowa in the fall 2010. With the deck panels designed specifically for this project, the validation of the assumed structural performance characteristics of the UHPC waffle deck, critical connections, system performance, and rideability of the panel surface were assessed through an experimental program at the structural laboratory of Iowa State University (ISU).
For this project, two prefabricated, full–depth, UHPC waffle deck (8ft x 9ft 9 inches x 8 inches) panels were connected to 24–ft long precast girders and the system was tested under service, fatigue and ultimate loads. In addition, the response of the system was evaluated using a detailed 3D finite element model. The results from this investigation and recommendations for using these panels in the Wapello County bridge project are now available in the Phase I report at http://www.fhwa.dot.gov/hfl/partnerships/coreslab/phase1/index.cfm