Experimental analysis on circular concrete-filled steel tubular beam-columns under unequal load eccentricities
نویسندگان
چکیده
This paper presents eight experimental tests on circular concrete-filled steel tubular (CFST) beam-columns loaded under unequal eccentricities at both ends. loading scheme has not been widely studied yet in previous research works CFST columns, but it may be very common into industrial or residential multi-storey frames, where ends are subjected to different bending moments. Tests results revealed that the ultimate resisting load increases when column is compared what equal eccentricities. However, certain conditions, ductility decreases. Also, equations provided by Eurocode 4 and AISC 360–16 for second order effects were assessed. Specifically, equivalent moment factors, βor Cm, calculated from data those given standards. Although more accurate predictions, codes provide safe predictions higher slenderness unsafe double curvature members with low slenderness. In view of results, further needed improve factor proposals including additional parameters apart eccentricity ratio.
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ژورنال
عنوان ژورنال: Engineering Structures
سال: 2022
ISSN: ['0141-0296', '1873-7323']
DOI: https://doi.org/10.1016/j.engstruct.2022.114206