Experimental study on the lateral behavior of DSCT columns with corrugated inner tube
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Title
- Experimental study on the lateral behavior of DSCT columns with corrugated inner tube
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Author(s)
- Han, Taek Hee; Won, Deokhee; Kim, Seungjun; Kang, Young Jong
- KIOST Author(s)
- Han, Taek Hee(한택희)
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Alternative Author(s)
- 한택희; 원덕희
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Publication Year
- 2015-09
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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.
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ISSN
- 1359-5997
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/2415
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DOI
- 10.1617/s11527-014-0361-0
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Bibliographic Citation
- MATERIALS AND STRUCTURES, v.48, no.9, pp.2855 - 2867, 2015
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Publisher
- SPRINGER
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Subject
- NONLINEAR CONCRETE MODEL; CFDST BEAM-COLUMNS; SANDWICH TUBE; PERFORMANCE; KOREA; BAY
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Keywords
- DSCT; Column; Composite; Concrete; Double skinned; Corrugate
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Type
- Article
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Language
- English
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Document Type
- Article
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