Evaluation of Bending Capacity and Deformation Performance of Concrete Filled Steel Tube Member with Small Shear-span Ratio

Concrete filled steel tube (CFT) members have been applied to the columns of rigid frame structures. However, the failure mode, the bending capacity and deformation performance of CFT members with small shear-span ratio are not clear because there have been few studies on them. In this study, cyclic...

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Published inQuarterly Report of RTRI Vol. 55; no. 4; pp. 197 - 203
Main Authors IKEDA, Manabu, BANDAI, Yoshihisa, AOKI, Chisato, SAITO, Masamichi, YOSHIDA, Naoto
Format Journal Article
LanguageEnglish
Published Tokyo Railway Technical Research Institute 2014
Japan Science and Technology Agency
Subjects
Bend tests
Bending
bending capacity
CFT member
Concretes
Deformation
deformation performance
Failure modes
Reinforcing steels
shear-span ratio
stress-strain curve
Structural steels
Tubes
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ISSN0033-9008
1880-1765
DOI10.2219/rtriqr.55.197

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Summary:Concrete filled steel tube (CFT) members have been applied to the columns of rigid frame structures. However, the failure mode, the bending capacity and deformation performance of CFT members with small shear-span ratio are not clear because there have been few studies on them. In this study, cyclic loading tests were conducted on short-column CFT members with constant vertical loads. As a result, it was confirmed that they show a flexural failure mode, but the existing design method overestimates their bending capacity. Therefore, a new evaluation method was proposed for their bending capacity and deformation performance.
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ISSN:0033-9008
1880-1765
DOI:10.2219/rtriqr.55.197