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Title |
Performance of Concentrically Loaded Assembled CFT Columns with Length of Ribs
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Authors |
유별이(Byeol-ie You) ; 손동희(Dong-hee Son) ; 배백일(Baek-il Bae) ; 엄순섭(Soon-sub Eom) ; 최창식(Chang-sik Choi) |
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DOI |
https://doi.org/10.4334/JKCI.2022.34.2.143 |
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Keywords |
CFT 기둥; 축력; 리브; 스터드; 전단연결재 CFT column; axial load; rib; stud; shear connector |
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Abstract |
This study was conducted to examine the central compression performance of an assembled CFT column with a sawtooth rib inside. The experimental results of the assembled CFT column and the general square cross-sectional CFT column and the code (AISC, KDS) were compared to confirm whether the code was available. In addition, the influence of the sawtooth-shaped rib and the integrated behavior of the individual steel plates of the assembled CFT column without welding were analyzed. The assembled CFT column without welding had a larger ultimate axial strength than the existing square cross-sectional CFT column and did not significantly affect the stiffness. In addition, when the effective intensity was exceeded, there was no further increase in ultimate axial strength, and there was integral behavior equal to or greater than that of the welded square cross-sectional CFT column. Finally, after calculating the compressive strength of the assembled CFT column that was not welded, it was confirmed that the design formula of the general square cross-sectional CFT column was viable.
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