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New Column Connections Will Aid in Accelerated Bridge Construction in Seismic Areas

Posted: Sep 26, 2022

Researchers at South Dakota State University tested new precast column connection details that could potentially reduce the time it takes to construct bridge bents (the combination of posts/piles and caps that support bridge girders) by a factor of three to four while meeting seismic requirements. The new details entail the use of mechanical bar splices, which are exposed for easy access and replacement. The approach will be useful in accelerated bridge construction (which improves safety, increases durability, and reduces delivery time), costs, and environmental impact of bridge construction.

Mostafa Tazarv, Ph.D.
South Dakota State University

Mechanically Spliced Precast Bridge Columns

NDSU Dept 2880P.O. Box 6050Fargo, ND 58108-6050