Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Shear strength and behavior of steel fiber reinforced concrete columns under seismic loading
AbstractThe benefits of using steel fiber to reinforce concrete columns are investigated to improve on the brittle column behavior of the columns during seismic excitation. Eight specimens for performance test are prepared and used to evaluate the steel fiber reinforcing effect on shear strength and behavior of the reinforced concrete columns. The variables used in this study are the volume fractions of steel fiber (i.e., 0.0%, 1.0%, 1.5%, and 2.0%) and the nominal ratios of shear reinforcement (i.e., 0.26% and 0.21% ). From the test results, it is found that the maximum enhancement of the shear capacity is achieved with 1.5% of steel fiber volume fraction. To predict the maximum shear strength of steel fiber reinforced columns, Hirosawa and Priestley’s proposed shear strength equations, ACI (American Concrete Institute) 318-99, AIJ MB (Architectural Institute of Japan Modified B method), and NZS (New Zealand Standard) 3101’s shear strength equations were reviewed and applied. From the parametric and regression analysis, the Priestley equation is modified to include the steel fiber reinforcing effect. Finally, the proposed equation is presented to predict the shear capacity of steel fiber reinforced concrete.
Shear strength and behavior of steel fiber reinforced concrete columns under seismic loading
AbstractThe benefits of using steel fiber to reinforce concrete columns are investigated to improve on the brittle column behavior of the columns during seismic excitation. Eight specimens for performance test are prepared and used to evaluate the steel fiber reinforcing effect on shear strength and behavior of the reinforced concrete columns. The variables used in this study are the volume fractions of steel fiber (i.e., 0.0%, 1.0%, 1.5%, and 2.0%) and the nominal ratios of shear reinforcement (i.e., 0.26% and 0.21% ). From the test results, it is found that the maximum enhancement of the shear capacity is achieved with 1.5% of steel fiber volume fraction. To predict the maximum shear strength of steel fiber reinforced columns, Hirosawa and Priestley’s proposed shear strength equations, ACI (American Concrete Institute) 318-99, AIJ MB (Architectural Institute of Japan Modified B method), and NZS (New Zealand Standard) 3101’s shear strength equations were reviewed and applied. From the parametric and regression analysis, the Priestley equation is modified to include the steel fiber reinforcing effect. Finally, the proposed equation is presented to predict the shear capacity of steel fiber reinforced concrete.
Shear strength and behavior of steel fiber reinforced concrete columns under seismic loading
Lee, Hyun-Ho (Autor:in)
Engineering Structures ; 29 ; 1253-1262
01.08.2006
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Seismic Shear Strength of Reinforced Concrete Columns
| British Library Online Contents | 1994
Seismic Shear Strength of Reinforced Concrete Columns
| Online Contents | 1994
Seismic Shear Strength of Reinforced Concrete Columns
| Online Contents | 1996