| Title |
Analytical and Variable Studies on External Diaphragm with Concrete-Filled Steel Tube Column |
| Authors |
허준혁(Hur, June-Hyuk) ; 유정한(Yoo, Jung-Han) |
| DOI |
https://doi.org/10.5659/JAIK.2021.37.12.303 |
| Keywords |
External Diaphragm; CFST; Finite Element Analysis; Seismic Design; Variable Study |
| Abstract |
The purpose of this study is to compare and analyze the AIJ 2008 design formula; currently used as the design formula for the external
diaphragm and CFT column moment connection; by comparing with FEA(finite element analysis) model of external diaphragm and CFT
column connection. The external diaphragm FEA model was based on DIA-75, which was a external diaphragm specimen on a previous
study of Li et al.(2010). Twenty variable models were produced based on the verified FEA model, and the shear strength and nominal
bending strength of the variable model were compared and analyzed with the AIJ 2008 design formula, respectively. The analysis results are
as follows; the shear strength equation showed an average error rate of 5.8%, and the nominal bending strength equation showed an average
error rate of 5.6%. |