STRUCTURAL PERFORMANCE OF CONCRETE FILLED STEEL TUBULAR COLUMNS PART 2: COMPARISON WITH CURRENT RECOMMENDATIONS

Since the 1990s, several studies have examined CFT columns, thus accumulating a large amount of experimental data. A previous study collected experimental data on CFT columns from existing research and reported the results of a comparison of the design standards at that time. Subsequently, the AIJ published “Recommendations for Design and Construction of Concrete Filled Steel Tubular Structures.” Therefore, the present study adds new test data derived from recent years to the database and examines current design recommendations. Based on the results, we demonstrate the characteristics of the structural performance of CFT columns in relation to current design recommendations.