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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Seismic shear strengthening of R/C columns with ferrocement jacket
AbstractThis paper presents results of an experimental study to evaluate a retrofit technique for strengthening shear deficient short concrete columns. In this technique a ferrocement jacket reinforced with expanded steel meshes is used for retrofitting. Six short concrete columns, including four strengthened specimens, were tested. Specimens were under a constant compressive axial force of 15% of column axial load capacity based on original concrete gross, Ag, and the concrete compressive strength, . Main variables were the spacing of ties in original specimens and the volume fraction of expanded metal in jackets. Original specimens failed before reaching their nominal calculated flexural strength, Mn, and had very poor ductility. Strengthened specimens reached nominal flexural strength and had a ductility capacity factor of up to 5.5. Based on the test results, it can be concluded that ferrocement jackets reinforced with expanded steel meshes can be used effectively to strengthen shear deficient concrete columns.
Seismic shear strengthening of R/C columns with ferrocement jacket
AbstractThis paper presents results of an experimental study to evaluate a retrofit technique for strengthening shear deficient short concrete columns. In this technique a ferrocement jacket reinforced with expanded steel meshes is used for retrofitting. Six short concrete columns, including four strengthened specimens, were tested. Specimens were under a constant compressive axial force of 15% of column axial load capacity based on original concrete gross, Ag, and the concrete compressive strength, . Main variables were the spacing of ties in original specimens and the volume fraction of expanded metal in jackets. Original specimens failed before reaching their nominal calculated flexural strength, Mn, and had very poor ductility. Strengthened specimens reached nominal flexural strength and had a ductility capacity factor of up to 5.5. Based on the test results, it can be concluded that ferrocement jackets reinforced with expanded steel meshes can be used effectively to strengthen shear deficient concrete columns.
Seismic shear strengthening of R/C columns with ferrocement jacket
Kazemi, Mohammad Taghi (Autor:in) / Morshed, Reza (Autor:in)
Cement and Concrete Composites ; 27 ; 834-842
20.03.2005
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Seismic shear strengthening of R-C columns with ferrocement jacket
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