Behavior of circular CFST stub columns under sustained load and chloride corrosion
作者： Lin-Hai Han , Chuan-Chuan Hou , Qing-Li Wang
DOI: 10.1016/J.JCSR.2014.07.021
关键词:
摘要: Abstract This paper studies the behavior of circular concrete filled steel tubular (CFST) stub columns under sustained load and chloride corrosion. A total 17 specimens, including 11 CFST 6 reference hollow tubes, were tested. The main parameters are loading ratios (0, 0.3 0.6) corrosion conditions (no-corrosion, fully-immersed half-immersed in environment). It was found that could have significant influence on ultimate strength both columns. Compared with composite actions specimens can effectively lighten effect. finite element analysis (FEA) model developed to take out full-range long-term corrosion, failure modes, load–displacement relationship, distribution section, interaction between tube its core concrete. Parametric carried study factors may residual axial Based parametric analysis, a simplified for ratio column suggested.
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