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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Simplified approach for evaluating residual strength of fire-exposed reinforced concrete columns
Abstract An approach for evaluating residual strength of reinforced concrete (RC) columns is presented in this paper. The approach is based on the maximum temperature attained in the concrete core and rebars, and associated reduction in strength of steel and concrete. For validating the proposed approach, post-fire residual strength tests were carried out on five high strength concrete columns. The test variables included type of concrete, presence of fibers (polypropylene and/or steel) in concrete and load ratio. The columns were loaded and exposed to a design fire, allowed to cool, and then residual strength tests were carried out. Results from these fire tests indicate that high strength concrete columns retain most of their room-temperature load carrying capacity after exposure to a design fire. A comparison of residual strength predictions with measured values from tests indicates that the proposed approach is capable of predicting the residual strength of fire-exposed RC columns.
Simplified approach for evaluating residual strength of fire-exposed reinforced concrete columns
Abstract An approach for evaluating residual strength of reinforced concrete (RC) columns is presented in this paper. The approach is based on the maximum temperature attained in the concrete core and rebars, and associated reduction in strength of steel and concrete. For validating the proposed approach, post-fire residual strength tests were carried out on five high strength concrete columns. The test variables included type of concrete, presence of fibers (polypropylene and/or steel) in concrete and load ratio. The columns were loaded and exposed to a design fire, allowed to cool, and then residual strength tests were carried out. Results from these fire tests indicate that high strength concrete columns retain most of their room-temperature load carrying capacity after exposure to a design fire. A comparison of residual strength predictions with measured values from tests indicates that the proposed approach is capable of predicting the residual strength of fire-exposed RC columns.
Simplified approach for evaluating residual strength of fire-exposed reinforced concrete columns
Kodur, V. K. R. (Autor:in) / Raut, N. K. (Autor:in) / Mao, X. Y. (Autor:in) / Khaliq, W. (Autor:in)
Materials and Structures ; 46 ; 2059-2075
28.02.2013
17 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Fire resistance , Fire exposed columns , Reinforced concrete column , HSC column , Residual strength , Analytical procedure Engineering , Structural Mechanics , Materials Science, general , Theoretical and Applied Mechanics , Operating Procedures, Materials Treatment , Civil Engineering , Building Materials
Simplified approach for evaluating residual strength of fire-exposed reinforced concrete columns
| Online Contents | 2013
Simplified approach for evaluating residual strength of fire-exposed reinforced concrete columns
| Online Contents | 2013
Simplified approach for evaluating residual strength of fire-exposed reinforced concrete columns
| British Library Online Contents | 2013
Simplified approach for evaluating residual strength of fire-exposed reinforced concrete columns
| Online Contents | 2013