The current AISC Specification (AISC 360-16) specifies the material strength limits for concrete-filled steel tube (CFT) columns. According to AISC 360-16, the steel yield stress (F y ) for CFT columns should not exceed 525 MPa, and the concrete compressive strength (f' c ) should not exceed 70 MPa. CFT columns are classified as high strength if either F y or f' c exceeds these specified limits and are classified as conventional strength if both F y and f' c are less than or equal to the

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... Due to lack of adequate research and comprehensive design equations, AISC 360-16 does not endorse the use of high-strength materials for CFT columns. This paper makes a contribution towards addressing this gap using a two-step approach. The first step consists of compiling an experimental database of highstrength circular CFT column tests in the literature and evaluating the possibility of extending the current AISC 360-16 design equations to high-strength circular CFT columns. The second step consists of developing and benchmarking detailed 3D nonlinear finite element models for predicting the behavior of high-strength CFT columns from the database. The benchmarked models are being used to perform comprehensive parametric studies to address gaps in the database and propose design equations for high-strength circular CFT members, which will be part of a future paper.