Concrete Connections

by Ayman S. Mosallam, P.E., (A.M.ASCE), Res. Prof.; California State Univ. at Fullerton, CA,
P. R. Chackrabati, P.E., Prof. of Civ. Engrg.; California State Univ. at Fullerton, CA,
Ernie K. Lau, Responsible Engrg. Authority; Hughes Space & Communications Co., Los Angeles, CA,


Serial Information: Civil Engineering—ASCE, 1999, Vol. 69, Issue 1, Pg. 43-45


Document Type: Feature article

Abstract:

A new application of polymer composites involves the repair and rehabilitation of reinforced concrete frame connections. Test results from a pilot study conducted at the California State University at Fullerton indicated that composite overlays increased both the stiffness and the strength of the connections. In addition, the ductility of the repaired connection specimens increased 42% compared to the control specimens. The pilot study consisted of six half-scale reversal cyclic tests conducted on beam-to-column subassemblages of reinforced concrete. The researchers tested damaged specimens repaired with both epoxy injection and carbon fiber and E-glass laminates. The article includes a discussion of the advantages and disadvantages of using carbon epoxy and E-glass laminates.

Subject Headings: Reinforced concrete | Synthetic materials | Connections (structural) | Concrete frames | Rehabilitation | Laminated materials | Epoxy

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