Paper
3 August 2001 Seismic performance and retrofit of reinforced concrete bridge bents
Claudia Pulido, Mehdi Saiidi, David H. Sanders, Ahmad M. Itani
Author Affiliations +
Abstract
The University of Nevada, Reno is currently developing a study on the seismic behavior of two-column bents with drop cap beams built prior to the 70's. Three 1/4 scale models were built with typical geometric and reinforcement properties and using the same construction details used at the time. One specimen was tested as built under the Sylmar record (Northridge 1994). The other two identical specimens were retrofitted, using carbon fibers wraps and longitudinal fibers on one bent, and an infill wall between the columns in the other. Both retrofitted specimens were tested under the same conditions as those of the as built. The fragile shear failure mode of the as built specimen was successfully modified with the retrofits, enhancing the performance and ductility. Overall performance and the effectiveness of the retrofit methods implemented used are discussed. The results indicate that the retrofits used are effective, however there are some concerns on the failure modes and excessive increase of strength.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Claudia Pulido, Mehdi Saiidi, David H. Sanders, and Ahmad M. Itani "Seismic performance and retrofit of reinforced concrete bridge bents", Proc. SPIE 4337, Health Monitoring and Management of Civil Infrastructure Systems, (3 August 2001); https://doi.org/10.1117/12.435602
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KEYWORDS
Bridges

Carbon

Composites

Earthquakes

Failure analysis

Fourier transforms

Analytical research

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