As part of an innovation project funded by the FHWA Highways for LIFE program, a full-depth precast, ultrahigh-performance concrete (UHPC) waffle deck panel and appropriate connections suitable for field implementation of waffle decks were developed. After a successful full-scale validation test on a unit consisting of two panels with three types of connections under laboratory conditions, the waffle deck was installed on a replacement bridge in Wapello County, Iowa. The subsequent load testing confirmed the desirable performance of the UHPC waffle deck bridge. With lessons from the completed project and outcomes from a series of simple and detailed finite element analyses of waffle decks, a design guide was developed to help broaden the design and installation of the UHPC waffle deck panel cost-effectively in new and existing bridges. This paper describes the waffle deck design introduced in the guide as it is applied to new bridges. To minimize the cost of this new bridge deck system, information on maximum rib spacing and simplified connections, along with the design of the deck panel for positive and negative moments, is presented.
Design of Ultrahigh-Performance Concrete Waffle Deck for Accelerated Bridge Construction
Transportation Research Record
Transportation Research Record: Journal of the Transportation Research Board ; 2406 , 1 ; 12-22
2014-01-01
Article (Journal)
Electronic Resource
English
Design of Ultrahigh-Performance Concrete Waffle Deck for Accelerated Bridge Construction
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