Mechanical behavior of locally corroded circular concrete-filled steel tubular stubs under local compression

This study used the local compression area ratio ( β ), corrosion depth ratio ( γ t ), corrosion length ratio ( γ L ), and relative corrosion location ( γ s ) as experimental parameters to conduct local compression tests on locally corroded circular concrete-filled steel tubular (CFST) stubs. The experimental results indicate that the failure modes of the specimens include local corroded zone failure, combined failure at the local compression end and the local corroded zone, and local compression end failure. As β increases from 2 to 16, γ t from 0 to 2/3, γ s from 1/4 to 1/2, and γ L from 1/5 to 1/3, the load-bearing capacity of specimens decreases by 41.4 %, 14.3 %, 4.9 %, and 3.2 %, respectively.…

• NN
  National Natural Science Foundation of China

  Award: 52278165
• DO
  Department of Education of Liaoning Province

  Awards: LJKQZ20222268, JYTMS20230817