Shear capacity assessment of corrosion-damaged reinforced concrete beams

• Main Author: Farrow, William C.
• Other Authors: Higgins, Christopher C.
• Language: en_US
• Published: 2012
• Subjects: Reinforced concrete > Testing; Reinforced concrete > Corrosion; Concrete beams > Testing; Concrete beams > Corrosion
• Online Access: http://hdl.handle.net/1957/32376

The research presented here is a study to determine the effect of shear reinforcement corrosion on the shear capacity in conventionally reinforced concrete (CRC) bridge elements. A total of 14 CRC beams were tested using three stirrup spacings (8, 10, and 12-inch). Six of the beams included the influence of a 4-inch thick deck, and both positive and negative moment regions were considered. The CRC beams were subjected to an accelerated corrosion process to produce the damage states. Inspection techniques were used to visually correlate corrosion damage with actual structural performance. Severe corrosion damage was shown to have significant effect on the shear performance of the CRC beams. Findings indicate that current inspection ratings for corrosion damage may not adequately identify the extent of structural deterioration. === Graduation date: 2003