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MPC Research: Design of Mechanically Spliced Precast Bridge Columns

  • May 24, 2022 (1:30 - 2:30 pm CT; 12:30 - 1:30 pm MT)
    Virtual Learning (desktop or laptop access)


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A mechanical bar splice, also known as bar coupler, is an alternative to the traditional lap splicing to connect bars in reinforced concrete (RC) structures. Even though mechanical bar splices can be used as new precast column connections to accelerate bridge construction (ABC), the use of bar couplers in the plastic hinge region of bridge columns is prohibited in current U.S. codes. Recent studies at South Dakota State University (SDSU) attacked both problems by testing more than 160 bar couplers and eight half-scale bridge columns.


Dr. Mostafa Tazarvis an associate professor in the department of Civil and Environmental Engineering at South Dakota State University. His research interests include the resiliency of civil infrastructure, advanced and sustainable materials, accelerated construction, large-scale testing, and computer vision in structural applications.

Target Audience

Structural designers, materials staff, construction staff, specification writers, project estimators, road and street supervisors/managers.

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