| doi:10.3850/978-981-08-6218-3_CC-Th017 |
 Final Paper PDF
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BEHAVIOR OF CIRCULAR CONCRETE FILLED STEEL TUBULAR(CFST) COLUMN USING HIGH STRENGTH STEEL AND CONCRETE UNDER ECCENTRIC LOADING
Seong-Hui Lee1,a, Sun-Hee Kim1,b, Yong-Hwan Choi1,c, Brian Uy2 and Sung-Mo Choi1,d
1Department of Architectual Engineering, University of Seoul, Seoul, Korea.
alsh@uos.ac.kr
bsun@uos.ac.kr
cchoi4u@gmail.com
dsmc@uos.ac.kr
2School of Engineering, University of Western Sydney, Penrith, Australia.
b.uy@uws.edu.au
EXTENDED ABSTRACT
In this study, to estimate the behavior of circular CFST column under eccentric loading, experimental test and fiber element analysis on 11 circular stub CFST column specimens w ere conducted. The parameters of specimens w ere high strength steel (above Fy=450MPa) and concrete (fck=31.5MPa, 59MPa), diameter-thickness ratio (D/t=25, 40, 60, 80, 100) and eccentric distance (e=0D, 0.167D, 0.5D). The results from the experiment tests and fiber element analysis w ere compared with AISC[1], Eurocode 4[2], KBCS[3] for suitability analysis of codes. From the analysis results, it is considered that AISC[1], KBCS[3] show good agreement on circular CFST column under eccentric loading and that Eurocode 4[2] overestimate the load-moment relation of circular CFST column under eccentric loading.