| Title |
An Experimental Study on Concrete-Filled Double-Skin Square Steel Tubular Beams under a Concentrated Load |
| DOI |
https://doi.org/10.5659/JAIK.2022.38.2.169 |
| Keywords |
Concrete-filled Double Skin Square Steel Tubular Beams; Inside-outside Breadth Ratio; Displacement Ductility; Bending-shear Strength |
| Abstract |
This study aims to examine the effect of shape memory alloys (SMA) wire and the structural performance of rebar on concrete-filled doubleskin
square steel tubular (CFDST) beams through a bending test. In accordance with ASTM C348, the bending test specimens were
fabricated and used to analyze its load-central deflection, failure modes, ultimate load ratio, bending-shear strength, and displacement ductility.
Three main parameters were selected: the inside-to-outside breadth ratio, installing SMA and rebar in the inner-to-outer steel tube, and the
location of installing SMA and rebar. This experiment revealed that the bending-shear strength gradually decreased as inside-to-outside breadth
ratio increased. The calculated bending-shear strength of CFDST under a concentrated load was evaluated using revised equations and the
results were compared. |