Physical Testing of Two R/C Skewed Slab Bridges with Integral Wall Abutments

by L. Comstock, Univ of Maine, Orono, United States,
H. Dagher, Univ of Maine, Orono, United States,

Document Type: Proceeding Paper

Part of: Structural Engineering in Natural Hazards Mitigation


Two one-third scale models of an existing reinforced concrete skewed slab bridge with integral wall abutments were tested statically to failure. Typically, these bridges are designed using the strip method which does not properly account for the effects of skew. Skewed slab bridges have high concentrations of moment and shear near the obtuse corners. The testing showed that a simple re-arrangement of the longitudinal reinforcement in which more steel is placed near the obtuse corners significantly delays cracking and improves serviceability.

Subject Headings: Concrete bridges | Reinforced concrete | Bridge abutments | Bridge tests | Concrete slabs | Steel bridges | Slabs

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