• The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal


Title: Design and Persormance of Bridge Cap Beam/Column Using Headed Reinforcement and Mechanical Couplers

Author(s): S. Sritharan, J. Ingham, M. Priestley, and F. Seible

Publication: Symposium Paper

Volume: 184


Appears on pages(s): 7-22

Keywords: cap beam; column; footing; reinforcement.

DOI: 10.14359/5506

Date: 11/1/1999

The application of headed reinforcement as a replacement for conventional reinforcement was investigated in two projects relating to the seismic design of bridges. In the first project, a test unit composed of a column, cap beam, footing and knee joint was designed entirely with headed reinforcement, and in footing and knee joint was designed entirely with headed reinforcement, and in the second project a test unit representative of a multi-column bridge bent was investigated, having a cap beam design utilizing both headed reinforcement and a mechanical coupler system. In both investigations the use of recently developed reinforcement products facilitated simplified detailing, particularly in the cap beam/column joint region, resulting in reduced reinforcement congestion the joint zone and improved constructability. The design and performance of the test units under simulated seismic loading are presented.