Experimental study on axial compression performance of I-shaped aluminum concrete columns embedded in CFRP-PVC square tubes.

ABSTRACT: To investigate the axial compressive behavior of CFRP-PVC square tube-embedded aluminum concrete columns, five specimens and one control specimen without I-shaped aluminum were tested under uniaxial compression, with the number of CFRP layers and spacing as variable parameters. The failure modes, load-displacement responses, and mechanical properties such as peak load, ductility, stiffness, and energy dissipation were systematically analyzed. Results showed that the incorporation of I-shaped aluminum improved the peak load and ductility by an average of 48.4% and 6.2%, respectively. Increasing the number of CFRP layers increased the bearing capacity by 62.6% for one layer and 69.8% for two layers. Ductility decreased by approximately 15.4% with one layer due to limited confinement but impr

SUBMITTER: Wang Y 

PROVIDER: S-EPMC12422466 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature