Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Archives of Civil and Mechanical Engineering

1 2022

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Theoretical and numerical analysis on the ultimate bearing capacity of CFRP-confined CFSST stub columns

Tang Hongyuan, Chen Junlong, Yue Zhaoyang, Jia Yigang, Yuan Zhijun

Archives of Civil and Mechanical Engineering

2022

Vol. 22, no. 1

art. no. e26, 2022

To analyze the ultimate bearing capacity of concrete-filled stainless steel tube (CFSST) stub columns confined by carbon fiber reinforced polymer (CFRP) under axial compression, this study conducted theoretical analysis, experimental research, and finite element simulation on CFRP-confined CFSST stub columns under axial compression. Through the theoretical analysis, using the continuous strength method and limit equilibrium method, a theoretical calculation model of the ultimate bearing capacity of the columns was established considering the evident strain hardening effect of stainless steel. In addition, through experimental research, it was found that the failure mode of CFRP-confined CFSST specimens is the typical CFRP fracture and that CFRP can effectively improve the axial compression performance of specimens and restrain the local buckling deformation of the stainless steel tube. Based on experimental research, a finite element model of the CFRP-confined CFSST stub column was established, and a parameter database for the finite element numerical analysis was established. By comparing the experimental results with the aforementioned parameter database, the theoretical model was verified to have a high accuracy in predicting the ultimate bearing capacity of CFRP-confined CFSST stub columns.