Experimental study on the lateral behavior of DSCT columns with corrugated inner tube SCIE SCOPUS

Cited 1 time in WEB OF SCIENCE Cited 5 time in Scopus
Title
Experimental study on the lateral behavior of DSCT columns with corrugated inner tube
Author(s)
Han, Taek Hee; Won, Deokhee; Kim, Seungjun; Kang, Young Jong
KIOST Author(s)
Han, Taek Hee(한택희)Won, Deok Hee(원덕희)
Publication Year
2015-09
Abstract
A double-skinned composite tubular column with a corrugated internal tube (DSCT-CT) was suggested to reduce the thickness of the inner tube while maintaining the required buckling strength. The DSCT-CT was studied to evaluate its behavior under lateral loading, and its lateral behavior was compared with that of a DSCT column with a flat internal tube (DSCT-FT). Quasi-static tests were performed by applying cyclic lateral loadings to the two different DSCT columns. Their test results were compared to each other and to those of a solid RC column from other research. The test results showed that the DSCT-CT column had larger ductility than the DSCT-FT column, with an equivalent damping ratio. However, the DSCT-CT column showed a smaller bending moment resistance and energy-absorbing capacity than the DSCT-FT column. Overall, the test results showed that the performances of the DSCT columns were superior to that of the solid RC column in terms of strength, yield energy, ultimate energy, and energy-absorbing capacity. As a result of their superior moment capacities, the DSCT columns absorbed about 50 % more energy than the solid RC column. However, the DSCT columns showed lower energy ductility factors than the solid RC column because of their high yield energies.
ISSN
1359-5997
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2415
DOI
10.1617/s11527-014-0361-0
Bibliographic Citation
MATERIALS AND STRUCTURES, v.48, no.9, pp.2855 - 2867, 2015
Publisher
SPRINGER
Subject
NONLINEAR CONCRETE MODEL; CFDST BEAM-COLUMNS; SANDWICH TUBE; PERFORMANCE; KOREA; BAY
Keywords
DSCT; Column; Composite; Concrete; Double skinned; Corrugate
Type
Article
Language
English
Document Type
Article
Publisher
SPRINGER
Related Researcher
Research Interests

Structural Engineering,Composite Structure,Marine Energy,구조공학,합성구조,해양에너지

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