Abstract
This paper proposes and evaluates a procedure for the design of high-strength spiral reinforcement for compression members. The proposed method utilizes usable stress values, rather than nominal yield stress values, for spiral design. The research included large-scale axial load tests on 14 spirally reinforced concrete compression members with spiral reinforcement yield stress values ranging from 538-1345 MPa and usable stress values ranging from 545-1131 MPa. It was found that, for the compression member geometries and material properties treated in this study, the proposed design procedure satisfactorily predicted the behavior of the compression members made from spirals with usable stress values up to 758 MPa.
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