In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
American Concrete Institute
38800 Country Club Dr.
Farmington Hills, MI
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
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.
Title: Beam-Column Joints Strengthened with Steel FRP and Steel FRCM: Experimental Investigations
Author(s): Annalisa Napoli and Roberto Realfonzo
Publication: Special Publication
Appears on pages(s): 105.1-105.10
Keywords: external strengthening; experimental tests; polymeric/cementitious matrix; RC joints; steel cords
Abstract:A new generation of composite material systems made of steel tapes in lieu of the more common carbon or glass fiber sheets has recently emerged for the seismic strengthening and repairing of reinforced concrete (RC) members. The steel tapes, whose first applications in Italy already date back to L’Aquila earthquake in 2009, consist of high tensile strength steel cords made by twisting steel wires within a micro-fine brass or galvanized coating; they can be applied in situ via wet lay-up by using polymeric or inorganic matrices, thus obtaining strengthening systems which can be gathered within the FRP (“Fiber Reinforced Polymers”) or FRCM (“Fabric Reinforced Cementitious Matrix”) families, respectively. This study investigates the feasibility of steel FRP and steel FRCM systems in improving the seismic performance of exterior RC beam-column joints. An experimental program was organized which includes fifteen specimens, most of which were strengthened by using different layouts while the remaining ones were used as benchmarks. The results of cyclic tests are examined through a comparison with the outcomes of the previous experimental program including companion specimens not provided with transverse beam stubs and strengthened by carbon FRP systems.
Click here to become an online Journal subscriber