The criteria used for successful rehabilitation of decks of major bridges when it is not feasible to close the bridge to traffic are described. These criteria are described with specific reference to recent work on the trestle spans of the Tappan Zee Bridge over the Hudson River near New York City. The results of an experimental program conducted with a full-scale, 10-m-span, lightweight concrete slab-steel beam composite bridge deck unit intended for later use in rehabilitating the through-truss decks of the bridge are also described. Loading history included 107 cycles of flexural fatigue loading followed by a flexural load capacity test. Measured values of capacity and midspan deflection at this ultimate load level are compared with simplified analytical predictions. A description of the actual rehabilitation process used on the Tappan Zee Bridge deck is also provided.
Rehabilitation of Tappan Zee Bridge Using Precast Concrete Composite Deck Units
Transportation Research Record: Journal of the Transportation Research Board
Transportation Research Record: Journal of the Transportation Research Board ; 1696 , 1 ; 63-72
2000-01-01
Article (Journal)
Electronic Resource
English
Rehabilitation of Tappan Zee Bridge Using Precast Concrete Composite Deck Units
Online Contents | 2000
|Rehabilitation of Tappan Zee Bridge Using Precast Concrete Composite Dock Units
Online Contents | 2000
|Rapid Bridge Deck Replacement with Full-Depth Precast Concrete Slabs
Transportation Research Record | 2000
|European Patent Office | 2023
European Patent Office | 2023
|