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Cyclic performance of concrete-filled steel CHS columns under flexural loading
AbstractConcrete-filled steel CHS (circular hollow section) columns are currently being increasingly used in the construction of buildings. Limited information is available on the models for the moment versus curvature response, and the lateral load versus lateral displacement relationship of these columns subjected to axial load and cyclically increasing flexural loading.Eight concrete-filled steel CHS specimens were tested under constant axial load and cyclically increasing flexural loading. The parameters in the study included the concrete strength and the axial load level . A mechanics model is developed in this paper for concrete-filled steel CHS columns subjected to constant axial load and cyclically increasing flexural loading. The predicted cyclic responses for the composite columns are in good agreement with test results.Based on the theoretical model, parametric analysis was performed on the behaviours of the moment versus curvature response, and the lateral load versus lateral displacement relationship, as well as the ductility coefficient for the composite columns. Finally, simplified models for the moment versus curvature response, and the lateral load versus lateral displacement relationship are suggested. A formula for the calculation of the ductility coefficient of the composite columns under constant axial load and cyclically increasing flexural loading is developed.
Cyclic performance of concrete-filled steel CHS columns under flexural loading
AbstractConcrete-filled steel CHS (circular hollow section) columns are currently being increasingly used in the construction of buildings. Limited information is available on the models for the moment versus curvature response, and the lateral load versus lateral displacement relationship of these columns subjected to axial load and cyclically increasing flexural loading.Eight concrete-filled steel CHS specimens were tested under constant axial load and cyclically increasing flexural loading. The parameters in the study included the concrete strength and the axial load level . A mechanics model is developed in this paper for concrete-filled steel CHS columns subjected to constant axial load and cyclically increasing flexural loading. The predicted cyclic responses for the composite columns are in good agreement with test results.Based on the theoretical model, parametric analysis was performed on the behaviours of the moment versus curvature response, and the lateral load versus lateral displacement relationship, as well as the ductility coefficient for the composite columns. Finally, simplified models for the moment versus curvature response, and the lateral load versus lateral displacement relationship are suggested. A formula for the calculation of the ductility coefficient of the composite columns under constant axial load and cyclically increasing flexural loading is developed.
Cyclic performance of concrete-filled steel CHS columns under flexural loading
Han, Lin-Hai (author) / Yang, You-Fu (author)
Journal of Constructional Steel Research ; 61 ; 423-452
2004-10-26
30 pages
Article (Journal)
Electronic Resource
English
Cyclic performance of concrete-filled steel CHS columns under flexural loading
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