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. In order to study the mechanical performance analysis of double-layered high-strength stirrup confined concrete columns of different cross-section, using ABAQUS of finite element software for numerical simulation and experimentally comparison methods to analyze different stirrup characteristic value , strength of stirrup and stirrup spacing factor on confined effectiveness of double-layered high-strength spiral stirrup confined circular and square concrete columns, the author validated the higher compression bearing capacity and better ductility of double-layered high-strength spiral stirrup confined circular concrete columns.

The mechanical performance analysis of double-layered high-strength stirrup confined concrete columns of different cross-section