Abstract Concrete bridge deck deterioration is a leading cause for structurally deficient rating of bridges in the United States. To overcome this challenge, an innovative UHPC-NC composite deck panel with UHPC serving effectively as an overlay over normal concrete (NC) is proposed. The combination of UHPC and NC makes the proposed composite panel a durable and cost effective bridge deck solution. The influence of concrete strength and interface roughness on structural performance of the proposed composite bridge panel was investigated using a total of 60 slant shear tests and three flexural tests. The slant shear test results demonstrated that the bond strength of all five different interface textures was adequate, which was later confirmed by the flexural tests. Simple analytical models were developed to accurately predict the observed experimental behavior. Resume L’endommagement des tabliers est une des causes majeures de deficience structurelle des ponts aux Etats-Unis. Pour regler ce probleme, un panneau composite innovant BFUP/beton est propose, dans lequel le BFUP sert de couche superieure. La combinaison de BFUP et de beton standard fait du panneau composite propose une solution de couverture de pont a la fois durable et economique. L’influence de la resistance du beton et de la rugosite de l’interface sur les performances du panneau a ete estimee a l’aide de 60 essais de cisaillement et de trois essais de flexion. Les essais de cisaillement ont demontre que l’adherence de chacun des cinq types de surface testes etait suffisante, ce qui a ensuite ete confirme par les essais de flexion. Des modeles analytiques simples ont egalement ete developpes afin d’approcher avec precision le comportement experimental mis en evidence.
[1]
Konrad Zilch,et al.
Capacity of shear joints between high-strength precast elements and normal-strength cast-in-place decks
,
2000
.
[2]
Benjamin A. Graybeal,et al.
Material Property Characterization of Ultra-High Performance Concrete
,
2006
.
[3]
Bryan E. Little,et al.
American Association of State Highway and Transportation Officials. Highway Drainage Guidelines American Association of State Highway and Transportation Officials. LRFD Bridge Design Specifications
,
2000
.
[4]
Sri Sritharan,et al.
Structural Behavior of Waffle Bridge Deck Panels and Connections of Precast Ultra-High-Performance Concrete
,
2011
.
[5]
Emmanuel Denarié,et al.
SAMARIS D22 - Full scale application of UHPFRC for the rehabilitation of bridges – from the lab to the field
,
2005
.
[6]
D. Harris,et al.
Characterization of Interface Bond of Ultra-High-Performance Concrete Bridge Deck Overlays
,
2011
.
[7]
N. G. Shrive,et al.
Factors Affecting Bond Between New and Old Concrete
,
1988
.