実大コンクリート充填鋼管の繰返し局部座屈破断に関する実験的研究

概要

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The low cycle fatigue following cyclic local buckling is one of the important fracture modes of concrete-filled tubular members (CFT members). The authors have already proposed a formula to estimate the loading cycles up to the fracture The formula has been empirically derived from the experimental database of the small-scale specimens such as the outside diameters are less than or equal to 101.6 mm. Therefore, the research need was remained for the scale effect in the fracture mode. From this point of view, the paper conducted the full-scale experiment in which the specimens have the outside diameters of 355.6mm or 216.3mm The experiment showed that (1) the scale effect might be negligible in the range of specimens, and (2) the estimation formula, to which a slight arrangement was done to enlarge the parameter range of diameter-to-thickness ratios, was applicable to the full-scale specimens too
社団法人日本建築学会の論文
2000-10-30